Analysis

  • max time kernel
    166s
  • max time network
    171s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-01-2023 19:12

General

  • Target

    98e3648add4ab0724ebeb54eb720e8ad97ad52b0.js

  • Size

    378KB

  • MD5

    484e1f6925d5957e9d486e420dc010b7

  • SHA1

    98e3648add4ab0724ebeb54eb720e8ad97ad52b0

  • SHA256

    9005a39c203e068daa077fe244e2608d36852dbef6f6ce8b28cc5cc015b89b1b

  • SHA512

    5b32912e30b446357ce6fe626b8136ae3262cdf4c60b7bc56b16171156a8979001a1a52168c0fe34b2b7526379b4519b7b04c86e17e18f40a62b7361acb0617c

  • SSDEEP

    6144:6V0EJTElOz43XdvK4tHOh6WfkHi4FjqWkQ2M4MMPpsiscuzAOgied24iD+:cJMW43NsZghqekPpNqAOgBd7iD+

Score
10/10

Malware Config

Signatures

  • Vjw0rm

    Vjw0rm is a remote access trojan written in JavaScript.

  • Blocklisted process makes network request 10 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Drops startup file 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 40 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\98e3648add4ab0724ebeb54eb720e8ad97ad52b0.js
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4868
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\TzTlSUHDie.js"
      2⤵
      • Blocklisted process makes network request
      • Drops startup file
      PID:3176
    • C:\Users\Admin\AppData\Local\Temp\bin.exe
      "C:\Users\Admin\AppData\Local\Temp\bin.exe"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      PID:4716
  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2184
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\SysWOW64\msiexec.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2864
      • C:\Program Files\Mozilla Firefox\Firefox.exe
        "C:\Program Files\Mozilla Firefox\Firefox.exe"
        3⤵
          PID:2172

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\bin.exe

      Filesize

      185KB

      MD5

      f9fdfca55156f35ea48a17947d091f4d

      SHA1

      15f10040cf10535deed5ca028150ed847a585d01

      SHA256

      7258963be005d6914901a62c591c56427553f62537f86d70965af16dae57c0d0

      SHA512

      53caa12467706839406c40e8e8a925a67f8c51ddc6abb0bf7db8ca61e03af09714cc954e959c89dae91fb45c07fc113a076e0ab34806933ca7deed520113c302

    • C:\Users\Admin\AppData\Local\Temp\bin.exe

      Filesize

      185KB

      MD5

      f9fdfca55156f35ea48a17947d091f4d

      SHA1

      15f10040cf10535deed5ca028150ed847a585d01

      SHA256

      7258963be005d6914901a62c591c56427553f62537f86d70965af16dae57c0d0

      SHA512

      53caa12467706839406c40e8e8a925a67f8c51ddc6abb0bf7db8ca61e03af09714cc954e959c89dae91fb45c07fc113a076e0ab34806933ca7deed520113c302

    • C:\Users\Admin\AppData\Roaming\TzTlSUHDie.js

      Filesize

      18KB

      MD5

      90c052e2282de1c12470fc54d62681d9

      SHA1

      ea069b254dde1f6cad46afedf55c69d4516a0d7a

      SHA256

      be62476863ca538e76f33e4758a5a5af8609d681026c4e325d8d667470aa9097

      SHA512

      73661062644236fcd76f689a8271f5f2c875468fbfdd4a4431a2b419c8bc093129345ee9b83d4f87eaa389a1ff12e776ba5d0d5845899931e1b72c32d4cb5ea7

    • memory/2184-140-0x0000000003150000-0x0000000003240000-memory.dmp

      Filesize

      960KB

    • memory/2184-149-0x0000000003240000-0x0000000003348000-memory.dmp

      Filesize

      1.0MB

    • memory/2184-148-0x0000000003240000-0x0000000003348000-memory.dmp

      Filesize

      1.0MB

    • memory/2864-145-0x0000000002D00000-0x000000000304A000-memory.dmp

      Filesize

      3.3MB

    • memory/2864-147-0x0000000002B30000-0x0000000002BBF000-memory.dmp

      Filesize

      572KB

    • memory/2864-141-0x0000000000000000-mapping.dmp

    • memory/2864-146-0x0000000000B60000-0x0000000000B8D000-memory.dmp

      Filesize

      180KB

    • memory/2864-143-0x0000000000C50000-0x0000000000C62000-memory.dmp

      Filesize

      72KB

    • memory/2864-144-0x0000000000B60000-0x0000000000B8D000-memory.dmp

      Filesize

      180KB

    • memory/3176-132-0x0000000000000000-mapping.dmp

    • memory/4716-139-0x0000000000AA0000-0x0000000000AB0000-memory.dmp

      Filesize

      64KB

    • memory/4716-142-0x0000000000AB0000-0x0000000000ADF000-memory.dmp

      Filesize

      188KB

    • memory/4716-134-0x0000000000000000-mapping.dmp

    • memory/4716-138-0x0000000001220000-0x000000000156A000-memory.dmp

      Filesize

      3.3MB

    • memory/4716-137-0x0000000000AB0000-0x0000000000ADF000-memory.dmp

      Filesize

      188KB