General

  • Target
    setup.cmd
  • Size 4.9MB
  • Sample261029-rfp2cszye1
  • SHA256 bf8f18252a4dd258361eb904d847af6eef5910b781bb212edf6f3d52c64eca77
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • hijackloader

Attributes
  • directory

    %APPDATA%\vpn_stream_arm

  • inject_dll

    %windir%\SysWOW64\ieframe.dll

xor.hex

Extracted

Family
  • acrstealer

Version
  • 4.5.3-alpha1

C2
  • vlan.nodepull.cc

Decoy
  • googletagmanager.com

Attributes
  • guids

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

    01a17988-c4b6-771b-a789-4491523b4cf6

  • 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.cmd
    • Size 4.9MB
    • SHA256 bf8f18252a4dd258361eb904d847af6eef5910b781bb212edf6f3d52c64eca77
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detects HijackLoader (aka IDAT Loader)

    • Family: ACR stealer,GrMsk

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

    • Family: HijackLoader, IDAT loader, Ghostulse,

      HijackLoader is a multi-stage loader, first seen in 2023.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Executes dropped EXE

    • Loads dropped DLL

    • 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.

    • Deobfuscate/Decode Files or Information

      Payload decoded via CertUtil.

    • Enumerates connected drives

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v16

Tasks