Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/01/2023, 19:31

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 5 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.

  • Program crash 1 IoCs
  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 34 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\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2648
    • C:\Windows\system32\wscript.exe
      wscript.exe C:\Users\Admin\AppData\Local\Temp\98e3648add4ab0724ebeb54eb720e8ad97ad52b0.js
      2⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:2244
      • C:\Windows\System32\wscript.exe
        "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\TzTlSUHDie.js"
        3⤵
        • Blocklisted process makes network request
        • Drops startup file
        PID:380
      • C:\Users\Admin\AppData\Local\Temp\bin.exe
        "C:\Users\Admin\AppData\Local\Temp\bin.exe"
        3⤵
        • Executes dropped EXE
        • Checks computer location settings
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:4188
    • C:\Windows\SysWOW64\ipconfig.exe
      "C:\Windows\SysWOW64\ipconfig.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Gathers network information
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4728
      • C:\Program Files\Mozilla Firefox\Firefox.exe
        "C:\Program Files\Mozilla Firefox\Firefox.exe"
        3⤵
          PID:4424
          • C:\Windows\system32\WerFault.exe
            C:\Windows\system32\WerFault.exe -u -p 4424 -s 192
            4⤵
            • Program crash
            PID:1916
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -pss -s 464 -p 4424 -ip 4424
      1⤵
        PID:2220

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      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/2648-140-0x00000000030F0000-0x0000000003204000-memory.dmp

        Filesize

        1.1MB

      • memory/2648-147-0x0000000007C20000-0x0000000007D0A000-memory.dmp

        Filesize

        936KB

      • memory/2648-148-0x0000000007C20000-0x0000000007D0A000-memory.dmp

        Filesize

        936KB

      • memory/4188-137-0x0000000000B70000-0x0000000000B9F000-memory.dmp

        Filesize

        188KB

      • memory/4188-138-0x0000000001220000-0x000000000156A000-memory.dmp

        Filesize

        3.3MB

      • memory/4188-139-0x00000000007F0000-0x0000000000800000-memory.dmp

        Filesize

        64KB

      • memory/4188-142-0x0000000000B70000-0x0000000000B9F000-memory.dmp

        Filesize

        188KB

      • memory/4728-143-0x0000000000C90000-0x0000000000C9B000-memory.dmp

        Filesize

        44KB

      • memory/4728-144-0x00000000010F0000-0x000000000111D000-memory.dmp

        Filesize

        180KB

      • memory/4728-145-0x00000000017A0000-0x0000000001AEA000-memory.dmp

        Filesize

        3.3MB

      • memory/4728-146-0x0000000001680000-0x000000000170F000-memory.dmp

        Filesize

        572KB