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Analysis

  • max time kernel
    662s
  • max time network
    1135s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240802-en
  • submitted
    17/09/2024, 17:19

General

  • Target

    Document-09-46-15.js

  • Size

    1.3MB

  • MD5

    e2d9ca6364ff2314bfbcc263d7fea8fd

  • SHA1

    c4c38c618cdb1663569606e06f64975ee1b37793

  • SHA256

    9f5ae302ea1ed87c64e26390eb6f2a90593b3049aaa1292d495d4f93ac9b2d98

  • SHA512

    7e7e28b421e1889762ce6abd40b89ec2ad971b909065aa90d7a95da5a992a70df53aa75d41e24a48b7feb3dc87ab7b6d8223adf9e583d4e96e256ae66509057d

  • SSDEEP

    24576:cQmj6HVNI/sE6lxMkY4Nd5NL4PcTwZP7n3lGIUpeu2GE:cQmj6HVe/D6lxMkY4Nd5NLicTQPz3lGo

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++.

  • Blocklisted process makes network request 5 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 6 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 13 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\Document-09-46-15.js
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:872
  • 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:1508
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding BC5C5A413ED2F10BEE24A4BB341522A4
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:4492
    • C:\Windows\Installer\MSI485.tmp
      "C:\Windows\Installer\MSI485.tmp" /DontWait C:/Windows/System32/rundll32.exe C:\Users\Admin\AppData\Roaming\rozelin.dll, Host
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:468
  • C:\Windows\System32\rundll32.exe
    "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\rozelin.dll, Host
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:992
    • C:\Windows\System32\rundll32.exe
      rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_c20715f6.dll", Host
      2⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      PID:3612

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Config.Msi\e5803e5.rbs

    Filesize

    1KB

    MD5

    fcacc938ad10a47732f152f9bea54fd9

    SHA1

    62ff4b2bf61d2338d02898dc0e9684faa23e3f4e

    SHA256

    cebd36caadb6183c87ed362e1a3b77419e4ebd868975b09a1c00d1638eeea97c

    SHA512

    034a535a536927e2afdec57fa988649bcd2edfbcfc46e6813db0493ad55cb3d10d95aa098f7c43d559862af89c0fd7e184515827d83c964187346e33d7acea57

  • C:\Users\Admin\AppData\Roaming\rozelin.dll

    Filesize

    1.5MB

    MD5

    f9bb8819674b780198ec05761a3ed0d6

    SHA1

    4c61542d76a0107eb80a950c33cd9bd5029a9b32

    SHA256

    3af3c1b6c72f09371c9975eb0914c5b187ba363c0cddf8164d14a0b7c1fcb5dc

    SHA512

    7b636446567b453c37a28b904d9f716a2aaff54676270760702995efdb521a10ae5f1a9254529eadc092b678a3b99e59efaec444f7f923d8e213298ae48f4fdc

  • C:\Windows\Installer\MSI27D.tmp

    Filesize

    436KB

    MD5

    475d20c0ea477a35660e3f67ecf0a1df

    SHA1

    67340739f51e1134ae8f0ffc5ae9dd710e8e3a08

    SHA256

    426e6cf199a8268e8a7763ec3a4dd7add982b28c51d89ebea90ca792cbae14dd

    SHA512

    99525aaab2ab608134b5d66b5313e7fc3c2e2877395c5c171897d7a6c66efb26b606de1a4cb01118c2738ea4b6542e4eb4983e631231b3f340bf85e509a9589e

  • C:\Windows\Installer\MSI485.tmp

    Filesize

    389KB

    MD5

    b9545ed17695a32face8c3408a6a3553

    SHA1

    f6c31c9cd832ae2aebcd88e7b2fa6803ae93fc83

    SHA256

    1e0e63b446eecf6c9781c7d1cae1f46a3bb31654a70612f71f31538fb4f4729a

    SHA512

    f6d6dc40dcba5ff091452d7cc257427dcb7ce2a21816b4fec2ee249e63246b64667f5c4095220623533243103876433ef8c12c9b612c0e95fdfffe41d1504e04

  • C:\Windows\Installer\MSIF889.tmp

    Filesize

    1.8MB

    MD5

    b1c0657b678a8e3f320476ef4ba6dfd2

    SHA1

    883a69c2aa664a783b416ec44506aad9d03832d5

    SHA256

    24746dfb4ac476772d7a1e936b714b9f0df30612395e4d8e7f31a2c43983bc55

    SHA512

    89059e8f6ae5039cdac24e64cd3b3805691121963f395faee41fb1d8799134ae8ae5ba5f90fd29aec9e6625a4041fd7c2f70185167bf3bb85d4ddad8ab8a383a

  • memory/992-45-0x000001D37CDF0000-0x000001D37CE06000-memory.dmp

    Filesize

    88KB

  • memory/992-47-0x000001D37CDF0000-0x000001D37CE06000-memory.dmp

    Filesize

    88KB

  • memory/992-48-0x0000000180000000-0x0000000180190000-memory.dmp

    Filesize

    1.6MB

  • memory/3612-51-0x000001377F360000-0x000001377F376000-memory.dmp

    Filesize

    88KB

  • memory/3612-52-0x000001377F360000-0x000001377F376000-memory.dmp

    Filesize

    88KB