Analysis

  • max time kernel
    181s
  • max time network
    189s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-01-2023 00:47

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.

  • Program crash 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 48 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:784
    • 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:4972
      • 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:3876
      • 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:4484
    • C:\Windows\SysWOW64\autofmt.exe
      "C:\Windows\SysWOW64\autofmt.exe"
      2⤵
        PID:1076
      • C:\Windows\SysWOW64\colorcpl.exe
        "C:\Windows\SysWOW64\colorcpl.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:644
        • C:\Program Files\Mozilla Firefox\Firefox.exe
          "C:\Program Files\Mozilla Firefox\Firefox.exe"
          3⤵
            PID:1744
            • C:\Windows\system32\WerFault.exe
              C:\Windows\system32\WerFault.exe -u -p 1744 -s 192
              4⤵
              • Program crash
              PID:2796
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -pss -s 452 -p 1744 -ip 1744
        1⤵
          PID:4724

        Network

        MITRE ATT&CK Matrix ATT&CK v6

        Defense Evasion

        Modify Registry

        1
        T1112

        Discovery

        Query Registry

        1
        T1012

        System Information Discovery

        2
        T1082

        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/644-146-0x0000000000C70000-0x0000000000C9D000-memory.dmp
          Filesize

          180KB

        • memory/644-147-0x0000000002D10000-0x000000000305A000-memory.dmp
          Filesize

          3.3MB

        • memory/644-150-0x0000000000C70000-0x0000000000C9D000-memory.dmp
          Filesize

          180KB

        • memory/644-143-0x0000000000000000-mapping.dmp
        • memory/644-148-0x0000000002A30000-0x0000000002ABF000-memory.dmp
          Filesize

          572KB

        • memory/644-145-0x0000000000790000-0x00000000007A9000-memory.dmp
          Filesize

          100KB

        • memory/784-151-0x0000000002B00000-0x0000000002BDF000-memory.dmp
          Filesize

          892KB

        • memory/784-149-0x0000000002B00000-0x0000000002BDF000-memory.dmp
          Filesize

          892KB

        • memory/784-142-0x0000000007A90000-0x0000000007B70000-memory.dmp
          Filesize

          896KB

        • memory/3876-134-0x0000000000000000-mapping.dmp
        • memory/4484-141-0x0000000000830000-0x0000000000840000-memory.dmp
          Filesize

          64KB

        • memory/4484-144-0x0000000000FA0000-0x0000000000FCF000-memory.dmp
          Filesize

          188KB

        • memory/4484-136-0x0000000000000000-mapping.dmp
        • memory/4484-140-0x0000000000FD0000-0x000000000131A000-memory.dmp
          Filesize

          3.3MB

        • memory/4484-139-0x0000000000FA0000-0x0000000000FCF000-memory.dmp
          Filesize

          188KB