Analysis

  • max time kernel
    151s
  • max time network
    208s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    18/01/2023, 00:54

General

  • Target

    98e3648add4ab0724ebeb54eb720e8ad97ad52b0.js

  • Size

    378KB

  • MD5

    484e1f6925d5957e9d486e420dc010b7

  • SHA1

    98e3648add4ab0724ebeb54eb720e8ad97ad52b0

  • SHA256

    9005a39c203e068daa077fe244e2608d36852dbef6f6ce8b28cc5cc015b89b1b

  • SHA512

    5b32912e30b446357ce6fe626b8136ae3262cdf4c60b7bc56b16171156a8979001a1a52168c0fe34b2b7526379b4519b7b04c86e17e18f40a62b7361acb0617c

  • SSDEEP

    6144:6V0EJTElOz43XdvK4tHOh6WfkHi4FjqWkQ2M4MMPpsiscuzAOgied24iD+:cJMW43NsZghqekPpNqAOgBd7iD+

Malware Config

Signatures

  • Vjw0rm

    Vjw0rm is a remote access trojan written in JavaScript.

  • Blocklisted process makes network request 14 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Suspicious use of SetThreadContext 3 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 26 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1268
    • C:\Windows\system32\wscript.exe
      wscript.exe C:\Users\Admin\AppData\Local\Temp\98e3648add4ab0724ebeb54eb720e8ad97ad52b0.js
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:864
      • 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:1400
      • 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:652
    • C:\Windows\SysWOW64\autochk.exe
      "C:\Windows\SysWOW64\autochk.exe"
      2⤵
        PID:1060
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\SysWOW64\cmd.exe"
        2⤵
          PID:1004
        • C:\Windows\SysWOW64\cscript.exe
          "C:\Windows\SysWOW64\cscript.exe"
          2⤵
          • Blocklisted process makes network request
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          • Modifies Internet Explorer settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1768
          • C:\Program Files\Mozilla Firefox\Firefox.exe
            "C:\Program Files\Mozilla Firefox\Firefox.exe"
            3⤵
              PID:1624

        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

        • \Users\Admin\AppData\Local\Temp\sqlite3.dll

          Filesize

          888KB

          MD5

          9c73b282279e74e40435132e61fda001

          SHA1

          63c7248e91b68fbde4641e3c5e2dc3e9d38671fa

          SHA256

          6710d91d77e1937dd5b46d96c0852042985dc78c4c51ce12d3e07a4cdb12c202

          SHA512

          02f9a01a3a5f74ef994ebb9e5f24c6870e2d48c8b99c429a63e74dad73fb581f0b52b2a86d651cafa414675b70a0e85b2e08c843d07e080fe69ee835e3c91108

        • memory/652-67-0x0000000000D50000-0x0000000000D7F000-memory.dmp

          Filesize

          188KB

        • memory/652-59-0x0000000000D50000-0x0000000000D7F000-memory.dmp

          Filesize

          188KB

        • memory/652-60-0x0000000000D80000-0x0000000001083000-memory.dmp

          Filesize

          3.0MB

        • memory/652-61-0x00000000000E0000-0x00000000000F0000-memory.dmp

          Filesize

          64KB

        • memory/652-63-0x0000000000D50000-0x0000000000D7F000-memory.dmp

          Filesize

          188KB

        • memory/652-64-0x00000000001A0000-0x00000000001B0000-memory.dmp

          Filesize

          64KB

        • memory/1268-72-0x0000000004330000-0x000000000440D000-memory.dmp

          Filesize

          884KB

        • memory/1268-74-0x0000000002AE0000-0x0000000002B78000-memory.dmp

          Filesize

          608KB

        • memory/1268-65-0x0000000006D40000-0x0000000006E6A000-memory.dmp

          Filesize

          1.2MB

        • memory/1268-62-0x0000000004330000-0x000000000440D000-memory.dmp

          Filesize

          884KB

        • memory/1268-80-0x000007FECFD40000-0x000007FECFD4A000-memory.dmp

          Filesize

          40KB

        • memory/1268-79-0x000007FEF5890000-0x000007FEF59D3000-memory.dmp

          Filesize

          1.3MB

        • memory/1268-78-0x0000000002AE0000-0x0000000002B78000-memory.dmp

          Filesize

          608KB

        • memory/1268-75-0x0000000006D40000-0x0000000006E6A000-memory.dmp

          Filesize

          1.2MB

        • memory/1400-58-0x000007FEFB9E1000-0x000007FEFB9E3000-memory.dmp

          Filesize

          8KB

        • memory/1768-73-0x0000000000A20000-0x0000000000AAF000-memory.dmp

          Filesize

          572KB

        • memory/1768-76-0x0000000075B61000-0x0000000075B63000-memory.dmp

          Filesize

          8KB

        • memory/1768-71-0x0000000000B50000-0x0000000000E53000-memory.dmp

          Filesize

          3.0MB

        • memory/1768-70-0x0000000000070000-0x000000000009D000-memory.dmp

          Filesize

          180KB

        • memory/1768-69-0x0000000000ED0000-0x0000000000EF2000-memory.dmp

          Filesize

          136KB