General

  • Target
    All_5DLCs_Psykzhack.rar_·_AkiraBox_Archive_free_4032.zip
  • Size 41.1MB
  • Sample261031-3tsj7ass9n
  • SHA256 4378f6cec3ce691aa3bb720ecac7d08afe154a286bf4772c47b3ce321ead8356
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • acrstealer

Version
  • 4.5.3-alpha1

C2
  • gstatic.com

  • ns.jigsawstrewn.cc

Attributes
  • ddrs

    cert.hamperdinner.cc

  • guids

    01a17409-9878-7eb9-9607-35b46b089ab1

    4d0bf37a-3180-4974-a873-a6ec4d4dc9f9

  • 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 102KB
    • SHA256 7123e1514b939b165985560057fe3c761440a9fff9783a3b84e861fd2888d4ab
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detects SectopRAT aka Arechclient2

    • Family: ACR stealer,GrMsk

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

    • Family: SectopRAT

      SectopRAT also known as Arechclient2 is a remote access trojan first seen in November 2019.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Badlisted process makes network request

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

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Indirect Command Execution

      Adversaries may abuse utilities that allow for command execution to bypass security restrictions that limit the use of command-line interpreters.

    • 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.

    • Registers new Windows logon scripts automatically executed at logon.

    • 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.

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • 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