Resubmissions

18-06-2024 12:51

240618-p3pb8syclm 10

18-06-2024 12:36

240618-ps1yaatdnb 10

Analysis

  • max time kernel
    282s
  • max time network
    293s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-06-2024 12:36

General

  • Target

    pa collective agreement pay 44189.js

  • Size

    18.5MB

  • MD5

    9a85a58f8b7f117cf590d03a2ff14b38

  • SHA1

    c813b5ef1649cda4da12a2c2ada177756695549c

  • SHA256

    39e57f888df18a927d66ea343badddd691952fafa1625a01497be903de381750

  • SHA512

    03a7b10c5156d8643e8d84e9d7278658e9bf7dc01067d3cf649802da872bbd3f093bd9f9727a4ec4185a890ece15ab9e78b4258b5cba493fbb659baec8be9027

  • SSDEEP

    49152:RU508dPXWR4ba/JOtdF5pHE2lsfiaahM3o43ORV59VDKtDOU508dPXWR4ba/JOtZ:5c43mPc43mPc43mPc43ml

Malware Config

Signatures

  • GootLoader

    JavaScript loader known for delivering other families such as Gootkit and Cobaltstrike.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Command and Scripting Interpreter: JavaScript 1 TTPs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 4 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:\Windows\system32\wscript.exe
    wscript.exe "C:\Users\Admin\AppData\Local\Temp\pa collective agreement pay 44189.js"
    1⤵
      PID:3680
    • C:\Windows\system32\wscript.EXE
      C:\Windows\system32\wscript.EXE CUSTOM~1.JS
      1⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:2108
      • C:\Windows\System32\cscript.exe
        "C:\Windows\System32\cscript.exe" "CUSTOM~1.JS"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4520
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell
          3⤵
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4736

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Execution

    Command and Scripting Interpreter

    1
    T1059

    JavaScript

    1
    T1059.007

    Discovery

    Query Registry

    2
    T1012

    System Information Discovery

    2
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lpmv3cey.rbq.ps1
      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Roaming\Mozilla\CUSTOM~1.JS
      Filesize

      40.4MB

      MD5

      44516882544e8625047d65e4e387558a

      SHA1

      b1b40ad6df4787e7b147c15574bfb942696d0806

      SHA256

      bf39eae265ae10f2ce2865e2f37172721164453111c068890bc94e3e5b07f204

      SHA512

      6968f62b1d14a87af37fbeb9a4356d734c103fb26d6a3d2949c42c44130d4a95585c80b25d012f529b0a05e9028df2f6cc8171b58f3e2fcaf5036513fff2bd73

    • memory/4736-4-0x00000135538D0000-0x00000135538F2000-memory.dmp
      Filesize

      136KB

    • memory/4736-13-0x0000013555C00000-0x0000013555C44000-memory.dmp
      Filesize

      272KB

    • memory/4736-14-0x0000013556050000-0x00000135560C6000-memory.dmp
      Filesize

      472KB

    • memory/4736-15-0x0000013556290000-0x00000135562BA000-memory.dmp
      Filesize

      168KB

    • memory/4736-16-0x0000013556290000-0x00000135562B4000-memory.dmp
      Filesize

      144KB