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Rewterz Threat Alert – Emotet Malware Massive Email Campaign

Severity

Medium

Analysis Summary

Emotet Malware is constantly being detected in the wild, targeting organizations from multiple sectors and countries. Emotet is a Trojan that is primarily spread through spam emails (malspam). The infection may arrive either via malicious script, macro-enabled document files, or malicious link. Emotet emails may contain familiar branding designed to look like a legitimate email. Emotet may try to persuade users to click the malicious files by using tempting language about “YourInvoice,” “Payment Details,” or possibly an upcoming shipment from well-known parcel companies. Emotet has gone through a few iterations. Early versions arrived as a malicious JavaScript file. Later versions evolved to use macro-enabled documents to retrieve the virus payload from command and control (C&C) servers run by the attackers. Lately, Emotet infections have been used to distribute other malware like Qakbot. So these can be multi-stage attacks that bundle other malware with emotet.

Impact

  • Financial loss 
  • Exposure of sensitive data

Indicators of Compromise

Source IP

  • 50[.]116[.]86[.]205
  • 37[.]139[.]21[.]175
  • 210[.]165[.]156[.]91
  • 209[.]141[.]54[.]221
  • 37[.]187[.]72[.]193
  • 78[.]24[.]219[.]147
  • 104[.]236[.]246[.]93
  • 5[.]196[.]74[.]210
  • 169[.]239[.]182[.]217
  • 190[.]55[.]181[.]54
  • 157[.]245[.]99[.]39

URL

  • http[:]//210[.]165[.]156[.]91/
  • http[:]//190[.]55[.]181[.]54[:]443/
  • http[:]//78[.]24[.]219[.]147[:]8080/
  • http[:]//157[.]245[.]99[.]39[:]8080/
  • http[:]//5[.]196[.]74[.]210[:]8080/
  • http[:]//169[.]239[.]182[.]217[:]8080/
  • http[:]//37[.]187[.]72[.]193[:]8080/
  • http[:]//104[.]236[.]246[.]93[:]8080/
  • http[:]//37[.]139[.]21[.]175[:]8080/
  • http[:]//50[.]116[.]86[.]205[:]8080/
  • http[:]//209[.]141[.]54[.]221[:]8080/

Remediation

  • Block the threat indicators at their respective controls.
  • Do not download email attachments coming from untrusted sources.