Overview

overview

10

Static

static

1

JaffaCakes...d38.js

windows7-x64

10

JaffaCakes...d38.js

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-12-2024 03:13

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General

  • Target

    JaffaCakes118_cb56d4ee3a8ece6ae7b0f473edd4fbecf3eac002ebeeb1832c467d1a37187d38.js

  • Size

    110KB

  • MD5

    166d32ce24cda5d9d5598fa9701fbff7

  • SHA1

    a34f8175087f31c13ec473753aef9b693f2085c2

  • SHA256

    cb56d4ee3a8ece6ae7b0f473edd4fbecf3eac002ebeeb1832c467d1a37187d38

  • SHA512

    76d982a58335f92a4a057fbaf669f2b76dc54f60e5ccfc7a86050afdfc2a417b3f8971eee176c991c09084dc471b58875cbaaabcd6358ef24bedf48a18a7a231

  • SSDEEP

    1536:0R+7RKzXHFJOgDmUiApuj9bcqRaJB2d+JutQNGKZPPXveSxIYjKzn:0RSKzXlkgC7AKgJSCAYmzn

Score
10/10
limeratvjw0rmdiscoveryexecutionpersistencerattrojanworm

Malware Config

Extracted

Family

limerat

Attributes
  • antivm

    false

  • c2_url

    https://pastebin.com/raw/G9wX4J5m

  • download_payload

    false

  • install

    false

  • pin_spread

    false

  • usb_spread

    false

Signatures

  • LimeRAT

    Simple yet powerful RAT for Windows machines written in .NET.

    ratlimerat
  • Limerat family
    limerat
  • Vjw0rm

    Vjw0rm is a remote access trojan written in JavaScript.

    trojanwormvjw0rm
  • Vjw0rm family
    vjw0rm
  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 53 IoCs
  • Command and Scripting Interpreter: JavaScript 1 TTPs
    execution
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistenceexecution
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 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.

    persistence

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cb56d4ee3a8ece6ae7b0f473edd4fbecf3eac002ebeeb1832c467d1a37187d38.js
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:4024
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\jXZTZBjYZp.js"
      2⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:4632
      • C:\Users\Admin\AppData\Roaming\New-Client.exe
        "C:\Users\Admin\AppData\Roaming\New-Client.exe"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4016
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Roaming\player.exe'"
          4⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:3804
        • C:\Users\Admin\AppData\Roaming\player.exe
          "C:\Users\Admin\AppData\Roaming\player.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:5068
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cb56d4ee3a8ece6ae7b0f473edd4fbecf3eac002ebeeb1832c467d1a37187d38.js
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:1208

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\New-Client.exe
    Filesize

    28KB

    MD5

    1ad564a6ca1520e8886faffc4e0ff1d4

    SHA1

    7d3b61daef1afed73838351dbf788448cf88d031

    SHA256

    2c3a771c2ecbd58409c3f348220c5d9419901e882c61531b68e07b80eb0d3df4

    SHA512

    b54d6cb92876546c38503e5e673d765f2e323246f5adbaefa83cdc62af6a462d117d3dc183666f902a84575590aa02f94d9997e7783e6f99050c57a710fab441

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  • C:\Users\Admin\AppData\Roaming\jXZTZBjYZp.js
    Filesize

    55KB

    MD5

    676c61e12789321127ee39d4f6040e6e

    SHA1

    d28eb6214cc3b5659d758ac1f64c7ad0d9a1d0f5

    SHA256

    c2ac77ca98d95ffa6ad11691c395bf22c564ab87f8dfad3211533a215b89d28b

    SHA512

    439218663821587f1727d7b833dae0991b75ae9f0e5a0761c72984758b3f1750fdca7242f1f8d9626561c3eeab826892d190112b901b1f632df75c820f67e5f8

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