General

  • Target
    tool_0e649eaf.exe
  • Size 5.5MB
  • Sample260908-plefpsfd54
  • SHA256 923c28b4d0f8a2ed0d33e6a747d9b39818d5123d3e378fd1d72ed31a75dd5623
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • acrstealer

Version
  • 4.2.4-alpha2

C2
  • pop.aethernetworking.cc

Decoy
  • akamaiedge.net

Attributes
  • guids

    a6cdcc0b-6b38-49d6-9672-20be114d9eba

    019f4713-f6b3-782b-93af-1da1e9cbfdc2

  • 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
      tool_0e649eaf.exe
    • Size 5.5MB
    • SHA256 923c28b4d0f8a2ed0d33e6a747d9b39818d5123d3e378fd1d72ed31a75dd5623
    • 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

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v16

Tasks