Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    21-04-2024 01:15

General

  • Target

    6ac96e55099f4737d755e8caa4a03a4ad47faec1e7d133c3eb67c9a7057cd574.js

  • Size

    3.8MB

  • MD5

    6812d6fba47adabb337563ca20fa84f8

  • SHA1

    2ab5b312c71f2a60d53c16fad7690291ea6d5bb0

  • SHA256

    6ac96e55099f4737d755e8caa4a03a4ad47faec1e7d133c3eb67c9a7057cd574

  • SHA512

    63d595755ddb4f6b680fb41068f285fbfa6b87d508b7efe1c2f481e70722a2d08669f15b08e362e8db0fdbd85f84796d1f1dd48717c7bf6392055dbbedfeaeae

  • SSDEEP

    49152:DVz6cMuHZupT2iUkP6qOyJdCt6x9loTDW6bK53j+ji48++M0fTW/JDy4TaERYUbB:V

Malware Config

Signatures

  • Vjw0rm

    Vjw0rm is a remote access trojan written in JavaScript.

  • Blocklisted process makes network request 30 IoCs
  • Drops startup file 5 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\6ac96e55099f4737d755e8caa4a03a4ad47faec1e7d133c3eb67c9a7057cd574.js
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2868
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\bCdHGOcGLp.js"
      2⤵
      • Blocklisted process makes network request
      • Drops startup file
      PID:2208
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\6ac96e55099f4737d755e8caa4a03a4ad47faec1e7d133c3eb67c9a7057cd574.js"
      2⤵
      • Blocklisted process makes network request
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:2052
      • C:\Windows\System32\wscript.exe
        "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\bCdHGOcGLp.js"
        3⤵
        • Blocklisted process makes network request
        • Drops startup file
        PID:2612

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\6ac96e55099f4737d755e8caa4a03a4ad47faec1e7d133c3eb67c9a7057cd574.js
    Filesize

    3.8MB

    MD5

    6812d6fba47adabb337563ca20fa84f8

    SHA1

    2ab5b312c71f2a60d53c16fad7690291ea6d5bb0

    SHA256

    6ac96e55099f4737d755e8caa4a03a4ad47faec1e7d133c3eb67c9a7057cd574

    SHA512

    63d595755ddb4f6b680fb41068f285fbfa6b87d508b7efe1c2f481e70722a2d08669f15b08e362e8db0fdbd85f84796d1f1dd48717c7bf6392055dbbedfeaeae

  • C:\Users\Admin\AppData\Roaming\bCdHGOcGLp.js
    Filesize

    346KB

    MD5

    ef0b971ae6f0713ad41a7774539bb787

    SHA1

    30e622c882a4e44b193d36c1a81d78850fe70c00

    SHA256

    62563b71eed9b8356f69bf8ba95e4664d6f936e485975d19cb04e7f456495fd3

    SHA512

    d9308bb70542e0ea6f080f5a2eafc528dd037fefe3a4b83a29721b161212572db27e20fa0d08d03dac0ae1691dd0f7c40471ab03d886158305d12ba4f48d1dc2