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Threat Outbreak Alert

Threat Outbreak Alert: Fake Bill Payment Notification Email Messages on November 27, 2013

 
Threat Type:IntelliShield: Threat Outbreak Alert
IntelliShield ID:29638
Version:13
First Published:2013 June 11 16:20 GMT
Last Published:2013 November 27 16:23 GMT
Port: Not available
Urgency:Possible use
Credibility:Confirmed
Severity:Mild Damage
 
Version Summary:Cisco Security Intelligence Operations has detected significant activity on November 27, 2013.
 

Description
 
Cisco Security Intelligence Operations has detected significant activity related to Portuguese-language spam email messages that claim to contain a payment notification for the recipient. The text in the email message attempts to convince the recipient to open the link to view the details. However, the link directs to a .zip file containing a malicious .cpl file that, when executed, attempts to infect the system with malicious code.

Email messages that are related to this threat (RuleID6263, RuleID6263KVR, and RuleID6263KVR_1) may contain the following files:

Nota_Fiscal_Eletronica_.cpl
Nota_Fiscal_Eletronica_.zip
Nota.Fiscal.20.05.2013.zip
Nota.Fiscal.20.05.2013.cpl
Nota-Fiscal-Eletronica-12-06.zip
Nota-Fiscal-Eletronica-12-06.cpl
Nota-Fiscal-No-2727027.zip
Nota-Fiscal-No-2727027.cpl
Nota_Fiscal_Emitida.zip
Nota_Fiscal_Emitida.cpl
Nota-Fiscal-Eletronica.1806.zip
Nota-Fiscal-Eletronica.18062013.cpl
Nota-Fiscal-Eletronica.zip
Nota-Fiscal-Eletronica.cpl
NF_9423.zip
Nota_Fiscal01234554.cpl
NF-Eletronica_Mes-06-2013.zip
NF-Eletronica_Mes-06-2013.cpl
Trackingdetails.zip
Trackingdetails.exe
NF-eletronica_mes-11-2013.zip
NF-eletronica_mes-11-2013.cpl
comprovante03.zip
comprovante02.cpl
Nota.Fiscal_Eletronica.zip
Nota.Fiscal_Eletronica.cpl
Comprovante-000165.zip
Comprovante-000165.cpl
Comprovante Deposito.zip

The Nota_Fiscal_Eletronica_.cpl file in the Nota_Fiscal_Eletronica_.zip attachment has a file size of 462,848 bytes. The MD5 checksum, which is a unique identifier of the executable, is the following string: 0xBA94F4704EBDC67908EC64B4D37A2E8C

The Nota.Fiscal.20.05.2013.cpl file in the Nota.Fiscal.20.05.2013.zip attachment has a file size of 634,880 bytes. The MD5 checksum is the following string: 0x37B01E6F0E8352332B4991972A9D6352

The Nota-Fiscal-Eletronica-12-06.cpl file in the Nota-Fiscal-Eletronica-12-06.zip attachment has a file size of 439,808 bytes. The MD5 checksum is the following string: 0x3133014C3AEAD277F28557FC7A4CC98E

The Nota-Fiscal-No-2727027.cpl file in the Nota-Fiscal-No-2727027.zip attachment has a file size of 73,216 bytes. The MD5 checksum is the following string: 0x61F536CD805F08BEC7A8438543F8DAA7

The Nota_Fiscal_Emitida.cpl file in the Nota_Fiscal_Emitida.zip attachment has a file size of 81,408 bytes. The MD5 checksum is the following string: 0x131DEC59D824233B6CB46E77992A2772

The Nota-Fiscal-Eletronica.18062013.cpl file in the Nota-Fiscal-Eletronica.1806.zip attachment has a file size of 239,616 bytes. The MD5 checksum is the following string: 0x1B65AD6BA71D33126BF6CA278E795968

The Nota-Fiscal-Eletronica.cpl file in the Nota-Fiscal-Eletronica.zip attachment has a file size of 151,040 bytes. The MD5 checksum is the following string: 0xBE99F725DBF34348D24894A6024E508C

The Nota_Fiscal01234554.cpl file in the NF_9423.zip attachment has a file size of 438,784 bytes. The MD5 checksum is the following string: 0xF6D355685A3AED55E52EDE7103E97C26

The NF-Eletronica_Mes-06-2013.cpl file in the NF-Eletronica_Mes-06-2013.zip attachment has a file size of 80896 bytes. The MD5 checksum is the following string: 0xE5CA4784F0F24BC52024C1A9C116CE78

The Trackingdetails.exe file in the Trackingdetails.zip attachment has a file size of 257,616 bytes. The MD5 checksum is the following string: 0x017F07876075515C77444C3D06B3516D

The NF-eletronica_mes-11-2013.cpl file in the NF-eletronica_mes-11-2013.zip attachment has a file size of 276,480 bytes. The MD5 checksum is the following string: 0x1E87ECE4134AE335C6CF425156C6742A

The comprovante02.cpl file in the comprovante03.zip attachment has a file size of 913,920 bytes. The MD5 checksum is the following string: 0xF2D37BB51EC0CC2802BB0E827F9C7630

The Nota.Fiscal_Eletronica.cpl file in the Nota.Fiscal_Eletronica.zip attachment has a file size of 929,280 bytes. The MD5 checksum is the following string: 0x3BDDA96D5D14C6AB687DF8211763A2D2

The Comprovante-000165.cpl file in the Comprovante-000165.zip attachment has a file size of 241,664 bytes. The MD5 checksum is the following string: 0x5AAB6B1674AC9E55A5662625DF6DB787

The Comprovante Deposito.zip file size is unavailable. The MD5 checksum is also unavailable.

The following text is a sample of the email message that is associated with this threat outbreak:

Subject: Emissão de Nota Fiscal terça-feira, 11 de junho de 2013 11:12:40

Message Body:

Nota fiscal Nº 00000000000001235456785
Data de emissão: 29/05/2013
Emita sua Nota Fiscal Aqui: NF-439454456464654653NF.PDF
Número do protocolo de autorização de uso: (13113547391090)
motivo pelo qual pedimos a sua imediata regularização.
Tendo em vista que a emissão deste aviso é automático.
Aguardamos o pagamento do boleto.
O não pagamento da anuidade nos prazos estabelecidos
acarretara multa e juros de mora de 2% (dois por cento) ao mês
CONFIDENCIAL PARA: 354862154 - Acesso Nota Fiscal aqui
CCM: 16895
CNPJ: 04.273.067/0001-49
_________________________________________________
© 2013 165485234, M.Q.T.A.LTDA

Or

Subject: Emissão de NF-e às 00:42:58

Message Body:

Emissão de NF-e (Nota Fiscal Eletrônica)
Prezado (a)
Esta mensagem refere-se à (Nota Fiscal Eletronica) de Serviços No. 2709887 emitida pelo presador de serviços:
Razão Social: Alfa Comercio Ltda
CNPJ do Prestador = 27.865.783/0001-02
Número da NF-e = 2709887-6310970-0011155-0010000-5284210-000066-32
Para baixá-la acesse ou clique no link a seguir:
hxxps: //nfe.fazenda.gov.br/clientes/nfe/download/doc/2709887
Alfa Comercio Ltda
Qualquer dúvida estou a disposição.

Or

Subject: MCR_Assessoria_e_Engenharia_LTDA._terça-feira,_18_de_junho_de_2013

Message Body:

Segue Anexo a Nota Fiscal Eletrônica de Serviços nº. 19743215, emitida em Junho/2013.
NF-E- Emitida.PDF 51112103610970000066321000052842100005284212-ProcNfe.PDF
Prezado Cliente(a)
Segue em anexo a cópia da NOTA FISCAL em PDF onde está a relação dos pedidos e demais detalhes do pagamento.
Informamos que o valor foi debitado com sucesso!
Qualquer dúvida em relação aos pedidos entrar em contato conosco que explicaremos!
R.Pena Engenharia LTDA agradece a preferência!
Atenciosamente,
MCR Assessoria
Setor Financeiro.
MCR Assessoria e Engenharia LTDA.
terça-feira, 18 de junho de 2013

Or

Subject: Nota Fiscal Emitida Em às 10:26:35

Message Body:

Emissão de Nota Fiscal
Prezado cliente,
Segue abaixo o(s) link(s) para acesso à nota fiscal eletrônica.
Notas Fiscais
Nota Codigo de Verificacao Visualizar
11932075 DTU8DBSW NF-eletronica-8457348947..Docx
Atenciosamente,
Equipe de Cobrança

Or

Subject: Emissão de NF-e às 23:27:36

Message Body:

Emissão de NF-e (Nota Fiscal Eletrônica)
Prezado (a)
Esta mensagem refere-se à (Nota Fiscal Eletronica) de Serviços No. 2709887 emitida pelo presador de serviços:
Razão Social: Alfa Comercio Ltda
CNPJ do Prestador = 27.865.783/0001-02
Número da NF-e = 2709887-6310970-0011155-0010000-5284210-000066-32
Para baixá-la acesse ou clique no link a seguir:
https: //nfe.fazenda.gov.br/clientes/nfe/download/doc/2709887
Alfa Comercio Ltda
Qualquer dúvida estou a disposição.

Or

Subject: Fiz o Deposito na sua conta hoje, confere o comprovante.

Message Body:

Data: 27.11.2013 04:43
De: Deposito Feito
Para: hdc@portonline.com.br
Comprovante

Cisco Security Intelligence Operations analysts examine real-world email traffic data that is collected from over 100,000 contributing organizations worldwide. This data helps provide a range of information about and analysis of global email security threats and trends. Cisco will continue to monitor this threat and automatically adapt systems to protect customers. This report will be updated if there are significant changes or if the risk to end users increases.

Cisco security appliances protect customers during the critical period between the first exploit of a virus outbreak and the release of vendor antivirus signatures. Email that is managed by Cisco and end users who are protected by Cisco Web Security Appliances will not be impacted by these attacks. Cisco security appliances are automatically updated to prevent both spam email and hostile web URLs from being passed to the end user.

Related Links
Cisco Security Intelligence Operations
Cisco SenderBase Security Network
 
Alert History
 

Version 12, August 6, 2013, 4:12 PM: Cisco Security Intelligence Operations has detected significant activity on August 6, 2013.

Version 11, July 12, 2013, 5:06 PM: Cisco Security Intelligence Operations has detected significant activity on July 12, 2013.

Version 10, July 12, 2013, 11:38 AM: Cisco Security Intelligence Operations has detected significant activity on July 11, 2013.

Version 9, July 5, 2013, 2:36 PM: Cisco Security Intelligence Operations has detected significant activity on July 5, 2013.

Version 8, June 25, 2013, 5:14 PM: Cisco Security Intelligence Operations has detected significant activity on June 23, 2013.

Version 7, June 24, 2013, 1:25 PM: Cisco Security Intelligence Operations has detected significant activity on June 23, 2013.

Version 6, June 21, 2013, 6:45 PM: Cisco Security Intelligence Operations has detected significant activity on June 21, 2013.

Version 5, June 18, 2013, 7:59 PM: Cisco Security Intelligence Operations has detected significant activity on June 18, 2013.

Version 4, June 18, 2013, 2:09 PM: Cisco Security Intelligence Operations has detected significant activity on June 18, 2013.

Version 3, June 13, 2013, 2:48 PM: Cisco Security Intelligence Operations has detected significant activity on June 12, 2013.

Version 2, June 12, 2013, 1:02 PM: Cisco Security Intelligence Operations has detected significant activity on June 12, 2013.

Version 1, June 11, 2013, 4:20 PM: Cisco Security Intelligence Operations has detected significant activity on June 11, 2013.


Product Sets
 
The security vulnerability applies to the following combinations of products.

Primary Products:
IntelliShieldThreat Outbreak Alert Original Release Base

Associated Products:
N/A




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