Analysis

  • max time kernel
    149s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/06/2024, 14:36

General

  • Target
    flat possession agreement 10384.js
  • Size 8.8MB
  • Sample240603-ryn7saba27
  • SHA256 893e44e4ad2e74f043af938b237ed08526a11a7c5eff8a4f84667543947f7292
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • GootLoader

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

  • Blocklisted process makes network request 4 IoCs
  • 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 8 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\flat possession agreement 10384.js"
    1⤵
      PID:64
    • C:\Windows\system32\wscript.EXE
      C:\Windows\system32\wscript.EXE MARINE~1.JS
      1⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:3916
      • C:\Windows\System32\cscript.exe
        "C:\Windows\System32\cscript.exe" "MARINE~1.JS"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4348
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell
          3⤵
          • Blocklisted process makes network request
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:5096

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          __PSScriptPolicyTest_1dqxho2y.xm0.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1dqxho2y.xm0.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512

          MARINE~1.JS

          • Path C:\Users\Admin\AppData\Roaming\Mozilla\MARINE~1.JS
          • Size 42.2MB
          • SHA256 faf45dfb63974b246f75cfb01575f495f770027963d13a3ebfdc3f180745088d
          • MD5 SHA1 SHA512 SSDEEP

          memory/5096-6-0x000001EAF8100000-0x000001EAF8122000-memory.dmp

          memory/5096-13-0x000001EAF8630000-0x000001EAF8674000-memory.dmp

          memory/5096-14-0x000001EAF8680000-0x000001EAF86F6000-memory.dmp

          memory/5096-15-0x000001EAF89B0000-0x000001EAF89DA000-memory.dmp

          memory/5096-16-0x000001EAF89B0000-0x000001EAF89D4000-memory.dmp