Analysis

  • max time kernel
    213s
  • max time network
    274s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240426-en
  • resource tags

    arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    26-04-2024 21:39

General

  • Target

    Document_c13_80d969115-51q17428f2747-7346p3.js

  • Size

    467KB

  • MD5

    8bb7600bf60e732c1f05932d1c15aa06

  • SHA1

    300bcf308b68fdb3c1e5f357cb2f49d20cb7c0b1

  • SHA256

    23303910ff8d01d4d6e1499a627dfa6006793faf36766e0f1e7b9fdf15fb0715

  • SHA512

    00d18cbb6d691b1c14cd272dda7f720285902fbf45498b4487c7a8968165915c0e814ed67ca079eda6f11d46e7d7d27317da6dbdc367634f24de0d1073d6039e

  • SSDEEP

    6144:eYxD9/bksr7o25kJ1QU7ie0kfDFXjiJYjCrYYlKB5NdaocgEHYcv5hk7vcf8o7Pu:eg9wsr82TAikb12rVKBfjMhAkkUJt8j

Score
10/10

Malware Config

Extracted

Family

latrodectus

C2

https://jarinamaers.shop/live/

https://startmast.shop/live/

Signatures

  • Latrodectus loader

    Latrodectus is a loader written in C++.

  • Detect larodectus Loader variant 2 1 IoCs
  • Blocklisted process makes network request 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 7 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
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 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_c13_80d969115-51q17428f2747-7346p3.js
    1⤵
    • Blocklisted process makes network request
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    PID:5008
  • 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:4484
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 3889820EE44ED2898E6329AD61F03DE3
      2⤵
      • Loads dropped DLL
      PID:4416
    • C:\Windows\Installer\MSI500A.tmp
      "C:\Windows\Installer\MSI500A.tmp" C:/Windows/System32/rundll32.exe C:\Users\Admin\AppData\Local\sharepoint\360total.dll, homq
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      PID:2400
  • C:\Windows\System32\rundll32.exe
    "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Local\sharepoint\360total.dll, homq
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2036
    • C:\Windows\System32\rundll32.exe
      rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_fa75cf21.dll", homq
      2⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      PID:3916
  • C:\Windows\system32\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_fa75cf21.dll", homq
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    PID:4540

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Config.Msi\e574eed.rbs

    Filesize

    1KB

    MD5

    0a25703b2f5680bec4940b660eb2a71c

    SHA1

    1829ba7fc1a7f883ff9dc6838fc68fb87e3386a8

    SHA256

    27f3cf1427547bd1dd13c67d256e31f6f9ce2fb353f7b240c33e3ee9fc890056

    SHA512

    bc3163d7466f920a90678a1a1691f705224ec485811dcb9c8fe796947abc98eacb960bd4aca417070a4e4c2014f761567c71b391b013ad66815b76098e32ce82

  • C:\Users\Admin\AppData\Local\sharepoint\360total.dll

    Filesize

    885KB

    MD5

    bd3a3714ee9a071ebeb59ac91d9ebb5a

    SHA1

    55110a221f20a4ceec34c58d0179fa31f8c102e9

    SHA256

    4cf2b612939359977df51a32d2f63e2cb0c6c601e114b8e4812bd548d1db85fe

    SHA512

    7244220f29057339c99a22c20268187ba6f6681251f4ce4f305ad22dc030f6078b4f298ef10ad392dc5d036c41c7b8c28c2bd997ea39ef7ab023cb9b5c946dc8

  • C:\Windows\Installer\MSI4844.tmp

    Filesize

    1.5MB

    MD5

    37605a3eb80f3366e56938031a9ac917

    SHA1

    0582a0dd69d6027fb94765254ed91ad736ade305

    SHA256

    4e7ac0bdb516e983b3cab7f79850d8102d2bf4117bb343b68d0da73780cceb1a

    SHA512

    772bb5538f5af14146d9bcf8d8c29a70860ecdf84b4af6cc99dae7589f60847ca7cb87b068bd2aa86f620e79d394c223b96c9fe95fe390e8a9c8422282f5b405

  • C:\Windows\Installer\MSI4E30.tmp

    Filesize

    436KB

    MD5

    475d20c0ea477a35660e3f67ecf0a1df

    SHA1

    67340739f51e1134ae8f0ffc5ae9dd710e8e3a08

    SHA256

    426e6cf199a8268e8a7763ec3a4dd7add982b28c51d89ebea90ca792cbae14dd

    SHA512

    99525aaab2ab608134b5d66b5313e7fc3c2e2877395c5c171897d7a6c66efb26b606de1a4cb01118c2738ea4b6542e4eb4983e631231b3f340bf85e509a9589e

  • C:\Windows\Installer\MSI500A.tmp

    Filesize

    389KB

    MD5

    b9545ed17695a32face8c3408a6a3553

    SHA1

    f6c31c9cd832ae2aebcd88e7b2fa6803ae93fc83

    SHA256

    1e0e63b446eecf6c9781c7d1cae1f46a3bb31654a70612f71f31538fb4f4729a

    SHA512

    f6d6dc40dcba5ff091452d7cc257427dcb7ce2a21816b4fec2ee249e63246b64667f5c4095220623533243103876433ef8c12c9b612c0e95fdfffe41d1504e04

  • memory/2036-41-0x0000000180000000-0x0000000180184000-memory.dmp

    Filesize

    1.5MB

  • memory/3916-55-0x0000025A194C0000-0x0000025A194D4000-memory.dmp

    Filesize

    80KB