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Rewterz Threat Alert – Chinese Hackers Evade Detection with Advanced Cryptojacking Tactics

Severity

Medium

Analysis Summary

Chinese-speaking cybercrime group Rocke, known for operating multiple large-scale malicious crypto-mining campaigns, is a financially motivated threat group using new tactics to evade detection.

This new malware strain is designed to help them set up Monero (XMR) cryptojacking operations on compromised systems, to almost non-existent detection rates. In addition to the C2 change, functionality was also added to their LSD malware to exploit ActiveMQ servers vulnerable to CVE-2016-3088.

Impact

Cryptojacking

Indicators of Compromise

Domain Name

  • cron[.]iap5u1rbety6vifaxsi9vovnc9jjay2l[.]com
  • 1×32[.]iap5u1rbety6vifaxsi9vovnc9jjay2l[.]com
  • update[.]systemten[.]org
  • lsd[.]systemten[.]org

MD5

  • 781fb531354d6f291f1ccab48da6d39f
  • a9175094b275a0aaed30604f7dceeb14
  • 0b7b52302c8c5df59d960dd97e3abdaf

SH256

  • 97d585b6aff62fb4e43e7e6a5f816dcd7a14be11a88b109a9ba9e8cd4c456eb9
  • 5a4a7d72e3a410b15ab59d0a387bf31d8935f991f517d8d24d353d3945d7705c
  • a6be5be2d16a24430c795faa7ab7cc7826ed24d6d4bc74ad33da5c2ed0c793d0

Source IP

185[.]205[.]210[.]48

Remediation

  • Block the threat indicators at their respective controls.
  • Make sure all ActiveMQ servers vulnerable to CVE-2016-3088 have been updated to patched versions.