Analysis

  • max time kernel
    93s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • submitted
    14/09/2024, 01:08

General

  • Target
    6ed4c0b2e67a048fea0163a19588d4cf3ae469b62cbf8536cb6c2a213cbfd56f.js
  • Sample240914-bhc7kszcmd

Malware Config

Extracted

Family
  • latrodectus

C2
  • https://isomicrotich.com/test/

  • https://rilomenifis.com/test/

Signatures

  • Detects Latrodectus 4 IoCs

    Detects Latrodectus v1.4.

  • Latrodectus family
  • Latrodectus loader

    Latrodectus is a loader written in C++.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 6 IoCs
  • Blocklisted process makes network request 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Windows directory 10 IoCs
  • Command and Scripting Interpreter: JavaScript 1 TTPs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 50 IoCs
  • Suspicious use of WriteProcessMemory 8 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\6ed4c0b2e67a048fea0163a19588d4cf3ae469b62cbf8536cb6c2a213cbfd56f.js
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3672
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Blocklisted process makes network request
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2508
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 14BBAF52E38FE2FC25D5F55B0C807435
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:3356
    • C:\Windows\Installer\MSI9408.tmp
      "C:\Windows\Installer\MSI9408.tmp" /DontWait C:/Windows/System32/rundll32.exe C:\Users\Admin\AppData\Roaming\true.dll, NvPluginGetInfo
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3096
  • C:\Windows\System32\rundll32.exe
    "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\true.dll, NvPluginGetInfo
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:4232
    • C:\Windows\System32\rundll32.exe
      rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_8e7a47d6.dll", NvPluginGetInfo
      2⤵
      • Loads dropped DLL
      PID:4920

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        e579359.rbs

        • Path C:\Config.Msi\e579359.rbs
        • Size 1KB
        • SHA256 28bdeaf277b42e58b5e86d64b95c925041e80edfd81aac37a56b988924fce0e6
        • MD5 SHA1 SHA512

        true.dll

        • Path C:\Users\Admin\AppData\Roaming\true.dll
        • Size 1.8MB
        • SHA256 2333dd858fc40899a1bff3fb39fbc0b4e65a864bfd4eb73c26b48aaddcca7061
        • MD5 SHA1 SHA512 SSDEEP

        MSI8647.tmp

        • Path C:\Windows\Installer\MSI8647.tmp
        • Size 1.9MB
        • SHA256 f60c7e2cd7078584e1fb2eacd6270c314f1e23f76a4cd78c5d13eec215f0e41c
        • MD5 SHA1 SHA512 SSDEEP

        MSI9115.tmp

        • Path C:\Windows\Installer\MSI9115.tmp
        • Size 436KB
        • SHA256 426e6cf199a8268e8a7763ec3a4dd7add982b28c51d89ebea90ca792cbae14dd
        • MD5 SHA1 SHA512 SSDEEP

        MSI9408.tmp

        • Path C:\Windows\Installer\MSI9408.tmp
        • Size 389KB
        • SHA256 1e0e63b446eecf6c9781c7d1cae1f46a3bb31654a70612f71f31538fb4f4729a
        • MD5 SHA1 SHA512 SSDEEP

        memory/4232-45-0x000001CF205B0000-0x000001CF205C6000-memory.dmp

        memory/4232-47-0x000001CF205B0000-0x000001CF205C6000-memory.dmp

        memory/4232-48-0x0000000180000000-0x00000001801DC000-memory.dmp

        memory/4920-52-0x0000028A2B1E0000-0x0000028A2B1F6000-memory.dmp

        memory/4920-51-0x0000028A2B1E0000-0x0000028A2B1F6000-memory.dmp