Resubmissions

26-04-2024 17:24

240426-vyrvfshc61 10

26-04-2024 17:08

240426-vn1dvaha7y 8

Analysis

  • max time kernel
    1386s
  • max time network
    1349s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-04-2024 17:24

General

  • Target

    Document_e31_92y951666-82a25718d3602-7076a5.js

  • Size

    467KB

  • MD5

    57847455932cb39bde4eb69fa0b802a2

  • SHA1

    5487caab411c7205f7f67250e29730c315a4f22d

  • SHA256

    da305ed28c974ac82afc57ae365e9955b3237cde4659fb1922de4e72ed42f2b7

  • SHA512

    9815795bf9d03ec716afade344a9ca73c966bc4d0c964d88c9596f450ce7f9c911886d92d1475538d8681f6b1fa8244facbc71e1b4ec16a93a45511240d10f8c

  • SSDEEP

    6144:hMREJkNl+RKvE9pJDS905tB8mH/4nZsJVyk8GgScwHwXBrG9m6dJuKSs+1txzEHH:ai25vElrtmmfCky2n4qdYi+5z8Rvl

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 9 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
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 24 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_e31_92y951666-82a25718d3602-7076a5.js
    1⤵
    • Blocklisted process makes network request
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    PID:748
  • 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:1000
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 5BD24FA16531D5B8C83FAC5D25CB84DA
      2⤵
      • Loads dropped DLL
      PID:1040
    • C:\Windows\Installer\MSI5B26.tmp
      "C:\Windows\Installer\MSI5B26.tmp" C:/Windows/System32/rundll32.exe C:\Users\Admin\AppData\Local\sharepoint\360total.dll, homq
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      PID:1932
  • 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:2868
    • C:\Windows\System32\rundll32.exe
      rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_a0cca21b.dll", homq
      2⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      PID:4956
  • C:\Windows\system32\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_a0cca21b.dll", homq
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    PID:2292
  • C:\Windows\system32\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_a0cca21b.dll", homq
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    PID:2060
  • C:\Windows\system32\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_a0cca21b.dll", homq
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    PID:3252

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Config.Msi\e5759e9.rbs

    Filesize

    1KB

    MD5

    de9cd7db75747f29f5a28f006c2cbb64

    SHA1

    11297a5e2564b1c646561aaa31f342d50ee933f0

    SHA256

    4e5ebd40b17d286a83b79a865fc82ba2c508f3cb22b6cc60f13fd99f9f0613b9

    SHA512

    49bc59230a4f086ad00117870672a71588fe1726b1a9eb160deb4d7efa1ed35cd839ebb1d45e26cdc090f4356afbd254c7a0e18fbc1e660a910801259a10e243

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

    Filesize

    885KB

    MD5

    bd3a3714ee9a071ebeb59ac91d9ebb5a

    SHA1

    55110a221f20a4ceec34c58d0179fa31f8c102e9

    SHA256

    4cf2b612939359977df51a32d2f63e2cb0c6c601e114b8e4812bd548d1db85fe

    SHA512

    7244220f29057339c99a22c20268187ba6f6681251f4ce4f305ad22dc030f6078b4f298ef10ad392dc5d036c41c7b8c28c2bd997ea39ef7ab023cb9b5c946dc8

  • C:\Windows\Installer\MSI5072.tmp

    Filesize

    1.5MB

    MD5

    37605a3eb80f3366e56938031a9ac917

    SHA1

    0582a0dd69d6027fb94765254ed91ad736ade305

    SHA256

    4e7ac0bdb516e983b3cab7f79850d8102d2bf4117bb343b68d0da73780cceb1a

    SHA512

    772bb5538f5af14146d9bcf8d8c29a70860ecdf84b4af6cc99dae7589f60847ca7cb87b068bd2aa86f620e79d394c223b96c9fe95fe390e8a9c8422282f5b405

  • C:\Windows\Installer\MSI57D5.tmp

    Filesize

    436KB

    MD5

    475d20c0ea477a35660e3f67ecf0a1df

    SHA1

    67340739f51e1134ae8f0ffc5ae9dd710e8e3a08

    SHA256

    426e6cf199a8268e8a7763ec3a4dd7add982b28c51d89ebea90ca792cbae14dd

    SHA512

    99525aaab2ab608134b5d66b5313e7fc3c2e2877395c5c171897d7a6c66efb26b606de1a4cb01118c2738ea4b6542e4eb4983e631231b3f340bf85e509a9589e

  • C:\Windows\Installer\MSI5B26.tmp

    Filesize

    389KB

    MD5

    b9545ed17695a32face8c3408a6a3553

    SHA1

    f6c31c9cd832ae2aebcd88e7b2fa6803ae93fc83

    SHA256

    1e0e63b446eecf6c9781c7d1cae1f46a3bb31654a70612f71f31538fb4f4729a

    SHA512

    f6d6dc40dcba5ff091452d7cc257427dcb7ce2a21816b4fec2ee249e63246b64667f5c4095220623533243103876433ef8c12c9b612c0e95fdfffe41d1504e04

  • memory/2868-41-0x0000000180000000-0x0000000180184000-memory.dmp

    Filesize

    1.5MB

  • memory/4956-55-0x000002CFA3630000-0x000002CFA3644000-memory.dmp

    Filesize

    80KB