Resubmissions

27-06-2024 13:02

240627-p9v4csserf 10

26-06-2024 14:09

240626-rgg25s1blm 10

Analysis

  • max time kernel
    292s
  • max time network
    296s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-06-2024 14:09

General

  • Target

    pa collective agreement pay 64470.js

  • Size

    13.9MB

  • MD5

    1b55002d20f323d7ea0a20e19a3325fa

  • SHA1

    63fbf3fc612072145c58bde5c969e4a4abc0a013

  • SHA256

    4c39948c9025afcb542a40dcfc81679658c846c888fd06d02d61967845e8fdda

  • SHA512

    a98543644b6a008fc07e451b8a540d47a7598e92a931ef6cf3bd348773557dc7562ec9776485b2c401f0ac0eb496d14d60604a0c2755d55a41d56367baa26ecf

  • SSDEEP

    49152:Grp08dPXWR4ba/JOtdF5pHE2lsfiaahM3o43ORV59VDKtDFrp08dPXWR4ba/JOti:bc43mBc43mBc43ml

Malware Config

Signatures

  • GootLoader

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

  • Blocklisted process makes network request 8 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 18 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 64470.js"
    1⤵
      PID:1340
    • C:\Windows\system32\wscript.EXE
      C:\Windows\system32\wscript.EXE PRIVAT~1.JS
      1⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:1508
      • C:\Windows\System32\cscript.exe
        "C:\Windows\System32\cscript.exe" "PRIVAT~1.JS"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2568
        • 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:5048

    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_rvne4eqi.oth.ps1
      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

      45.2MB

      MD5

      e8e1a6158e80626491ee6dc6d7ae1e2b

      SHA1

      cb6843e0f1bf93f5a7e68abef17d75e13cc4991e

      SHA256

      6ca56719076da00cb125d4a2cff818f3420f9d34de12267e8cf7b02fd7fd9d4e

      SHA512

      352e57a10c4fd242a1c4073a196c545d23663f5bfc104421b04abeab6651dbb0aa289ea019e4b6f354d0f061fabbf96c577621ecd2566d5bf769679cdb092d84

    • memory/5048-5-0x000002592DC90000-0x000002592DCB2000-memory.dmp
      Filesize

      136KB

    • memory/5048-13-0x0000025930090000-0x00000259300D4000-memory.dmp
      Filesize

      272KB

    • memory/5048-14-0x0000025930360000-0x00000259303D6000-memory.dmp
      Filesize

      472KB

    • memory/5048-15-0x00000259305A0000-0x00000259305CA000-memory.dmp
      Filesize

      168KB

    • memory/5048-16-0x00000259305A0000-0x00000259305C4000-memory.dmp
      Filesize

      144KB