General

  • Target
    SETUP.zip
  • Size 10.7MB
  • Sample260903-pbtsmsgm6v
  • SHA256 9b05f1ec83e0f252043c75ebefe40ee640e9f3aaf9e141c27b0bab0dbfab7142
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • acrstealer

Version
  • 4.3.8-alpha2

C2
  • sync.canyonmere.cc

Decoy
  • cdnjs.cloudflare.com

Attributes
  • ddrs

    https://telegra.ph/C-Introduction-08-21

  • guids

    01a034f4-51c1-7e0e-a650-137d7032a680

    f1575b64-8492-4e8b-b102-4d26e8c70371

  • user_agent

    Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.2.6187.130 Safari/537.36

xor.hex

Targets

    • Target
      Setup.exe
    • Size 10.5MB
    • SHA256 72208131742dbaf6871f648e297a054c8ad58cd318e4391772cdf4db34989a39
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detects ACRStealer V4.x

    • Family: ACR stealer,GrMsk

      ACR stealer (aka GrMsk stealer) is an infostealer written in C++.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v16

Tasks