Rewterz Threat Alert – Russian Language Malspam Pushing Shade Ransomware

Severity

Medium

Analysis Summary

The infection process is almost identical to the previous malspam campaign. The only difference is that the previous campaign had a ZIP archive attached to the malspam email, whereas this new campaign uses a link in a PDF attachment to retrieve the ZIP archive. Within the downloaded ZIP archive is a JavaScript file that infects vulnerable hosts with the Shade ransomware. Files are encrypted by the ransomware and payment via TOR is demanded in exchange for decryption.

Impact

File encryption.

Indicators of Compromise

IP(s) / Hostname(s)

74.220.207.61

62.212.69.227

URLs

• http[:]//simplerlife[.]pl/wp-content/themes/hueman/assets/admin/css/pic[.]zip
• http[:]//sidneyyin[.]com/templates/joomlage0084-aravnik/css/msg.jpg
• http[:]//cryptsen7fo43rr6[.]onion/
• http[:]//cryptsen7fo43rr6[.]onion.to/
• http[:]//cryptsen7fo43rr6[.]onion.cab/

Email Address

pilotpilot088[@]gmail.com

Malware Hash (MD5/SHA1/SH256)

• 6950efbd9d6d10fdd8f644a71b30e53a8d1dbd64976279d8a192a0c9459d06e1
• e76b93f6ab032e16f5f1d600cb061db49a10538b10a063561df95be94156ac0b
• 17539e1a0c33fe2f98fa1b8fa282f9f3786ba15419e30ae6c4171ccff65338c9
• 33dde2eed8ccb2b74c9d0feaf19c341354e54cb5d2c9e475507ff3fe22240381

Remediation

Block the threat indicators at their respective controls.

Always be suspicious of unsolicited email.

Never click/ download any attachments sent from unrecognized senders.