Threat Outbreak Alert RuleID31982: Email Messages Distributing Malicious Software on February 14, 2018

Medium

Alert ID:

56835

First Published:

2018 February 14 19:34 GMT

Version:

1

Summary

• Cisco Security has detected significant activity related to spam email messages distributing malicious software.

Email messages that are related to this threat (RuleID31982) may contain the following files:

Name	Size in Bytes	MD5 Checksum
Chave da NF-e 42180213589504000564550020000035941100466.rar / Chave da NF-e 42180213589504000564550020000035941100466.exe
389,120
0xACE490A408857B36984A6B31750EC8D1

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

> Subject: DANFE (Documento auxiliar de nota fiscal eletrônica).

Message Body:

Nota fiscal eletrônica
Prezado(a) cliente,
Em cumprimento da legislação em vigor, em anexo segue o arquivo XML. Para melhor visualização, segue também o arquivo PDF do DANFE (Documento auxiliar de nota fiscal eletrônica).
Em breve você receberá o produto acompanhado do DANFE, utilizado apenas para acompanhamento da mercadoria.
Chave da NF-e: 1717314145200227884215
Para consulta da NF-e e sua validade, utilize o Anexo enviado:
Atenciosamente E-Cadeiras
Suporte Nota Fiscal Eletronica
CNPJ 13.589.504/0001-30 - Inscr. Estadual: 146.021.172.115
Av Jaguaré, 818 - Galpão 26 - Jaguaré
CEP 05.346-000 - São Paulo - SP
www.e-cadeiras.com.br
3004.7570
1717314, 145200, 22788, 4215 1717314, 145200, 22788, 4215 1717314, 145200, 22788, 4215 1717314, 145200, 22788, 4215 1717314, 145200, 22788, 4215 1717314, 145200, 22788, 4215 1717314, 145200, 22788, 4215 1717314, 145200, 22788, 4215 1717314, 145200, 22788, 4215 1717314, 145200, 22788, 4215 1717314, 145200, 22788, 4215 1717314, 145200, 22788, 4215 1717314, 145200, 22788, 4215 1717314, 145200, 22788, 4215
n_515057465703150586715881813922373889526106512560

Cisco security appliances can help protect customers during the critical period between the first exploit of a virus outbreak and the release of vendor antivirus signatures. Cisco Web Security Appliances help secure and control web and email traffic by offering layers of malware protection. Cisco security appliances are automatically updated to help prevent both spam email and hostile web URLs from being passed to the end user.

Revision History

* Version	Description	Section	Date
1	Initial release to report significant activity detected by Cisco Security on February 14, 2018.	—	2018-February-14
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