General

  • Target
    test.txt
  • Size 1.6MB
  • Sample260903-3l949st1dv
  • SHA256 45b1629991b76684752d1b68db2835384f696f714726c06cd6eab03eb1cb75fa
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Language
  • ps1

Source
URLs
  • ps1.dropper

    https://cdn.jsdelivr.net/gh/cowenrty/60-13-96-DA-AA-3C/2b

Extracted

Family
  • acrstealer

Version
  • 4.3.8-alpha2

C2
  • mx.firgrove.cc

Decoy
  • fastly.net

Attributes
  • ddrs

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

  • guids

    019fd84c-02e7-7a67-9097-4f73d632de4a

    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

Extracted

Family
  • acrstealer

Version
  • 4.3.6-alpha1

C2
  • stream.echovale.cc

Decoy
  • fastly.net

Attributes
  • ddrs

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

  • guids

    f1575b64-8492-4e8b-b102-4d26e8c70371

    019fd84c-02e7-7a67-9097-4f73d632de4a

  • 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
      test.txt
    • Size 1.6MB
    • SHA256 45b1629991b76684752d1b68db2835384f696f714726c06cd6eab03eb1cb75fa
    • 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

    • Badlisted process makes network request

      Network request originating from process or tool commonly abused by malware.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v16

Tasks