Analysis

  • max time kernel
    145s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/04/2024, 04:06

General

  • Target
    ca635ade9c58ac45f54483f4e6a30b82_JaffaCakes118.exe
  • Size 361KB
  • Sample240405-en91aabg2w
  • SHA256 2c839c357b85bc65e982067f854d9ba66914b2177f3301e61320ae9c521278c6
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • Detect ZGRat V1 2 IoCs
  • ZGRat

    ZGRat is remote access trojan written in C#.

  • Async RAT payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 23 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\ca635ade9c58ac45f54483f4e6a30b82_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\ca635ade9c58ac45f54483f4e6a30b82_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1916
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "windows apps" /tr '"C:\Users\Admin\AppData\Roaming\windows apps.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3392
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "windows apps" /tr '"C:\Users\Admin\AppData\Roaming\windows apps.exe"'
        3⤵
        • Creates scheduled task(s)
        PID:1996
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp857C.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1020
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:4660
      • C:\Users\Admin\AppData\Roaming\windows apps.exe
        "C:\Users\Admin\AppData\Roaming\windows apps.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:4068

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        tmp857C.tmp.bat

        • Path C:\Users\Admin\AppData\Local\Temp\tmp857C.tmp.bat
        • Size 156B
        • SHA256 8e72ab92507389ecd76b6fa3eaed48645c6d64043ebdb721041ee08c461f4d00
        • MD5 SHA1 SHA512

        windows apps.exe

        • Path C:\Users\Admin\AppData\Roaming\windows apps.exe
        • Size 361KB
        • SHA256 2c839c357b85bc65e982067f854d9ba66914b2177f3301e61320ae9c521278c6
        • MD5 SHA1 SHA512 SSDEEP

        memory/1916-0-0x0000000000C20000-0x0000000000C84000-memory.dmp

        memory/1916-1-0x00007FFE0D920000-0x00007FFE0E3E1000-memory.dmp

        memory/1916-2-0x0000000001590000-0x00000000015A0000-memory.dmp

        memory/1916-3-0x00007FFE0D920000-0x00007FFE0E3E1000-memory.dmp

        memory/1916-8-0x00007FFE0D920000-0x00007FFE0E3E1000-memory.dmp

        memory/4068-13-0x00007FFE0D920000-0x00007FFE0E3E1000-memory.dmp

        memory/4068-14-0x000000001B0B0000-0x000000001B0C0000-memory.dmp

        memory/4068-15-0x00007FFE0D920000-0x00007FFE0E3E1000-memory.dmp

        memory/4068-16-0x000000001B0B0000-0x000000001B0C0000-memory.dmp