Analysis

  • max time kernel
    151s
  • max time network
    170s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    17/01/2023, 19:08

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 8 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
  • 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 21 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:1300
    • C:\Windows\system32\wscript.exe
      wscript.exe C:\Users\Admin\AppData\Local\Temp\98e3648add4ab0724ebeb54eb720e8ad97ad52b0.js
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2044
      • 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:584
      • 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:1908
    • C:\Windows\SysWOW64\raserver.exe
      "C:\Windows\SysWOW64\raserver.exe"
      2⤵
        PID:1940
      • C:\Windows\SysWOW64\colorcpl.exe
        "C:\Windows\SysWOW64\colorcpl.exe"
        2⤵
        • 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:1708
        • C:\Program Files\Mozilla Firefox\Firefox.exe
          "C:\Program Files\Mozilla Firefox\Firefox.exe"
          3⤵
            PID:668

      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

        819KB

        MD5

        eda40ea55ff2eb2a2e5aca836bb1cc26

        SHA1

        6de11b4b121bc8b9b87b05ddbdd6eda4e9442c37

        SHA256

        330b88eacb778b86dff1a90189121e8b3280723be9fbf4e55174ede2bbf74af0

        SHA512

        caf63f50931f76ec919528dedfb8b6ee14590f5aa33f91a6b9c24f63c0f3851cffdc16eab976ee7d6140f383050050d26f3547743b5ae772001b8f6199f0a4fc

      • memory/584-58-0x000007FEFBFC1000-0x000007FEFBFC3000-memory.dmp

        Filesize

        8KB

      • memory/1300-75-0x00000000072C0000-0x00000000073AF000-memory.dmp

        Filesize

        956KB

      • memory/1300-74-0x0000000006CF0000-0x0000000006DA9000-memory.dmp

        Filesize

        740KB

      • memory/1300-73-0x00000000072C0000-0x00000000073AF000-memory.dmp

        Filesize

        956KB

      • memory/1300-62-0x00000000064B0000-0x000000000659B000-memory.dmp

        Filesize

        940KB

      • memory/1300-64-0x0000000006CF0000-0x0000000006DA9000-memory.dmp

        Filesize

        740KB

      • memory/1708-69-0x0000000000EE0000-0x0000000000EF8000-memory.dmp

        Filesize

        96KB

      • memory/1708-67-0x0000000075881000-0x0000000075883000-memory.dmp

        Filesize

        8KB

      • memory/1708-70-0x0000000000080000-0x00000000000AD000-memory.dmp

        Filesize

        180KB

      • memory/1708-71-0x0000000002300000-0x0000000002603000-memory.dmp

        Filesize

        3.0MB

      • memory/1708-72-0x00000000003F0000-0x000000000047F000-memory.dmp

        Filesize

        572KB

      • memory/1908-66-0x0000000001290000-0x00000000012BF000-memory.dmp

        Filesize

        188KB

      • memory/1908-63-0x0000000000480000-0x0000000000490000-memory.dmp

        Filesize

        64KB

      • memory/1908-61-0x0000000000200000-0x0000000000210000-memory.dmp

        Filesize

        64KB

      • memory/1908-60-0x0000000000980000-0x0000000000C83000-memory.dmp

        Filesize

        3.0MB

      • memory/1908-59-0x0000000001290000-0x00000000012BF000-memory.dmp

        Filesize

        188KB