General

  • Target
    a54d4986e42a30f271bf1e70e9153b44.dll
  • Size 2.7MB
  • Sample221025-lbcbtacbcq
  • SHA256 1d58e9f81b10e3da48c2525020f25e6109f14026e1234041bf7131c5b8c0c8bd
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • erbium

C2
  • http://77.73.133.53/cloud/index.php

Targets

    • Target
      a54d4986e42a30f271bf1e70e9153b44.dll
    • Size 2.7MB
    • SHA256 1d58e9f81b10e3da48c2525020f25e6109f14026e1234041bf7131c5b8c0c8bd
    • MD5 SHA1 SHA512 SSDEEP
    • Modifies security service

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • XMRig Miner payload

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Stops running service(s)

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks