Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20230703-en
  • resource tags

    arch:x64arch:x86image:win7-20230703-enlocale:en-usos:windows7-x64system
  • submitted
    05-07-2023 13:15

General

  • Target

    Tracking_Number.js

  • Size

    2.7MB

  • MD5

    19c5045d74bd6d55551c00910f44e3cb

  • SHA1

    fa656d4789cc9f0ec6e3cd211b90eda57302c3ef

  • SHA256

    1ee08a9037a820ccadbc782796577fb8581c0003d3f53201510fded41788ddd1

  • SHA512

    516771d1bc03cfc404d99681472f2cd09c88ebc71c00c083923807154e257d4aca087d7ab9f05a74152259199223de1b2458af0e5aff0a9aea44f86c7fda0433

  • SSDEEP

    24576:QoquCbsNf3EdHLEZ8JUvJbXAGetdw8Rwzgys8Pam8Ve7Ylvi+A:AA

Malware Config

Extracted

Family

wshrat

C2

http://172.93.181.132:4848

Signatures

  • Vjw0rm

    Vjw0rm is a remote access trojan written in JavaScript.

  • WSHRAT

    WSHRAT is a variant of Houdini worm and has vbs and js variants.

  • Blocklisted process makes network request 58 IoCs
  • Downloads MZ/PE file
  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
  • Drops startup file 5 IoCs
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 8 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 5 IoCs
  • Script User-Agent 26 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious use of AdjustPrivilegeToken 15 IoCs
  • Suspicious use of FindShellTrayWindow 26 IoCs
  • Suspicious use of SendNotifyMessage 53 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\Tracking_Number.js
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:1628
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\sCmQSwcNNH.js"
      2⤵
      • Blocklisted process makes network request
      • Drops startup file
      PID:1680
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\Tracking_Number.js"
      2⤵
      • Blocklisted process makes network request
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:2292
      • C:\Windows\System32\wscript.exe
        "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\sCmQSwcNNH.js"
        3⤵
        • Blocklisted process makes network request
        • Drops startup file
        PID:2092
      • C:\Users\Admin\AppData\Roaming\123.exe
        "C:\Users\Admin\AppData\Roaming\123.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2672
        • C:\Windows\explorer.exe
          "C:\Windows\explorer.exe"
          4⤵
          • Modifies Installed Components in the registry
          • Modifies registry class
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          • Suspicious use of WriteProcessMemory
          PID:2268
          • C:\Windows\system32\ctfmon.exe
            ctfmon.exe
            5⤵
              PID:2556
          • C:\Users\Admin\AppData\Roaming\123.exe
            "C:\Users\Admin\AppData\Roaming\123.exe"
            4⤵
            • Executes dropped EXE
            PID:2220
    • C:\Windows\system32\AUDIODG.EXE
      C:\Windows\system32\AUDIODG.EXE 0x5cc
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1416

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Roaming\123.exe

      Filesize

      701KB

      MD5

      23d41c3c86b454bcda5886fa688d93ec

      SHA1

      ae7b5e74dbe8e0f43eda3532ae85e7e50f84a05d

      SHA256

      832b6a7cbf95224da05cea4a36b37bbde2eece2751d3a385e8a212b0fde4cbb0

      SHA512

      f45418755562d46c402fc66135e744a03dc436a5e493e44201b55e606e79b5a13bd0b8e7bcb062f1f033b15dbd47c3bc31d9b2e3336a181259d90da27f2e1434

    • C:\Users\Admin\AppData\Roaming\123.exe

      Filesize

      701KB

      MD5

      23d41c3c86b454bcda5886fa688d93ec

      SHA1

      ae7b5e74dbe8e0f43eda3532ae85e7e50f84a05d

      SHA256

      832b6a7cbf95224da05cea4a36b37bbde2eece2751d3a385e8a212b0fde4cbb0

      SHA512

      f45418755562d46c402fc66135e744a03dc436a5e493e44201b55e606e79b5a13bd0b8e7bcb062f1f033b15dbd47c3bc31d9b2e3336a181259d90da27f2e1434

    • C:\Users\Admin\AppData\Roaming\123.exe

      Filesize

      701KB

      MD5

      23d41c3c86b454bcda5886fa688d93ec

      SHA1

      ae7b5e74dbe8e0f43eda3532ae85e7e50f84a05d

      SHA256

      832b6a7cbf95224da05cea4a36b37bbde2eece2751d3a385e8a212b0fde4cbb0

      SHA512

      f45418755562d46c402fc66135e744a03dc436a5e493e44201b55e606e79b5a13bd0b8e7bcb062f1f033b15dbd47c3bc31d9b2e3336a181259d90da27f2e1434

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Tracking_Number.js

      Filesize

      2.7MB

      MD5

      19c5045d74bd6d55551c00910f44e3cb

      SHA1

      fa656d4789cc9f0ec6e3cd211b90eda57302c3ef

      SHA256

      1ee08a9037a820ccadbc782796577fb8581c0003d3f53201510fded41788ddd1

      SHA512

      516771d1bc03cfc404d99681472f2cd09c88ebc71c00c083923807154e257d4aca087d7ab9f05a74152259199223de1b2458af0e5aff0a9aea44f86c7fda0433

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Tracking_Number.js

      Filesize

      2.7MB

      MD5

      19c5045d74bd6d55551c00910f44e3cb

      SHA1

      fa656d4789cc9f0ec6e3cd211b90eda57302c3ef

      SHA256

      1ee08a9037a820ccadbc782796577fb8581c0003d3f53201510fded41788ddd1

      SHA512

      516771d1bc03cfc404d99681472f2cd09c88ebc71c00c083923807154e257d4aca087d7ab9f05a74152259199223de1b2458af0e5aff0a9aea44f86c7fda0433

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sCmQSwcNNH.js

      Filesize

      346KB

      MD5

      18aa57ffd7f9968b45cea6ceded1af69

      SHA1

      a5fe5b3bf2ad7ad3f6c801eba60aebb326d068ae

      SHA256

      ea9033d7fc981d1ef5297e3c99b2bffad27941f9675f19cef2e590dc523cb0bd

      SHA512

      d63c7ab681d37dc0a4cc2cd2aa7be9e9724f1f717b477607a0bd8ee716130bfe4d8a141ddb18782be3b771efe0e0c479f622ad2d118020361c0e59583a9e9b70

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

      Filesize

      2.7MB

      MD5

      19c5045d74bd6d55551c00910f44e3cb

      SHA1

      fa656d4789cc9f0ec6e3cd211b90eda57302c3ef

      SHA256

      1ee08a9037a820ccadbc782796577fb8581c0003d3f53201510fded41788ddd1

      SHA512

      516771d1bc03cfc404d99681472f2cd09c88ebc71c00c083923807154e257d4aca087d7ab9f05a74152259199223de1b2458af0e5aff0a9aea44f86c7fda0433

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

      Filesize

      346KB

      MD5

      ddd86f3f3317db8d3976edbba41483dc

      SHA1

      3302b16e470d9d3dff221a9ed63e4b7d6a846d7f

      SHA256

      d1fae4d587ac0ab289ff6ad45d9363c62068f120bc7aa8c88d411aaefdea12d5

      SHA512

      7eacfe75e8f214c11cbdad8ebd0b4dd818717541e191dfcf42fbb736953e350156ec3359e93bd572f93852487a85fa2335edd5256b49f4a7cdf2b20876723e1c

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

      Filesize

      346KB

      MD5

      ddd86f3f3317db8d3976edbba41483dc

      SHA1

      3302b16e470d9d3dff221a9ed63e4b7d6a846d7f

      SHA256

      d1fae4d587ac0ab289ff6ad45d9363c62068f120bc7aa8c88d411aaefdea12d5

      SHA512

      7eacfe75e8f214c11cbdad8ebd0b4dd818717541e191dfcf42fbb736953e350156ec3359e93bd572f93852487a85fa2335edd5256b49f4a7cdf2b20876723e1c

    • memory/2220-81-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2220-92-0x0000000004E10000-0x0000000004E50000-memory.dmp

      Filesize

      256KB

    • memory/2220-82-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2220-83-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2220-84-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2220-85-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

      Filesize

      4KB

    • memory/2220-86-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2220-97-0x0000000004E10000-0x0000000004E50000-memory.dmp

      Filesize

      256KB

    • memory/2220-89-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2220-91-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/2268-93-0x0000000003CE0000-0x0000000003CE1000-memory.dmp

      Filesize

      4KB

    • memory/2268-98-0x0000000003CE0000-0x0000000003CE1000-memory.dmp

      Filesize

      4KB

    • memory/2672-79-0x0000000000410000-0x0000000000450000-memory.dmp

      Filesize

      256KB

    • memory/2672-77-0x00000000010C0000-0x0000000001176000-memory.dmp

      Filesize

      728KB