Analysis

  • max time kernel
    122s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • submitted
    17/09/2024, 20:02

General

  • Target

    4dbb76374e57bb0aeda7f060d7b49fd1c0bba480ab1527dfa0ea009db0383298.msi

  • Size

    1.5MB

  • MD5

    f1f8dcc624cbbbf64c48207f3ab75587

  • SHA1

    bd32787754b124da7ecfcc3badc8eaa80de5c90b

  • SHA256

    4dbb76374e57bb0aeda7f060d7b49fd1c0bba480ab1527dfa0ea009db0383298

  • SHA512

    5c9892355af5da5389a631ba79df05c39a678d10f0fe9af80c83d4e16681f8e828d22992083dc877117d87434b973a648f308a34797c4e04fd0db93788cafb05

  • SSDEEP

    24576:XD7xLN3Y2MvZCFlp8zBQSc0ZoCvqK9x0ECIgYmfLVYeBZr7A4mK8OdBsCaatxxo:XD73YhW8zBQSc0ZnSKBZKumZr7A3K8YR

Malware Config

Extracted

Family

latrodectus

C2

https://indepahote.com/test/

https://pikchestop.com/test/

Signatures

  • Detects Latrodectus 1 IoCs

    Detects Latrodectus v1.4.

  • Latrodectus family
  • Latrodectus loader

    Latrodectus is a loader written in C++.

  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • Drops file in Windows directory 11 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 14 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • 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.

  • Modifies data under HKEY_USERS 43 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 24 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.

  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\4dbb76374e57bb0aeda7f060d7b49fd1c0bba480ab1527dfa0ea009db0383298.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:2256
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2004
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 57B2D0FC5CA489275E47D05FF3F585AA C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:3020
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 9966965629B25983C9D2BB59DC5B51E1
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:2140
    • C:\Windows\Installer\MSIE708.tmp
      "C:\Windows\Installer\MSIE708.tmp" /DontWait C:/Windows/System32/rundll32.exe C:\Users\Admin\AppData\Roaming\nvidia.dll, AnselEnableCheck
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2124
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
      PID:2732
    • C:\Windows\system32\DrvInst.exe
      DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000003CC" "00000000000005D4"
      1⤵
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      PID:2704
    • C:\Windows\System32\rundll32.exe
      "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\nvidia.dll, AnselEnableCheck
      1⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2000
      • C:\Windows\System32\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_79e169f8.dll", AnselEnableCheck
        2⤵
        • Loads dropped DLL
        PID:1624

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Config.Msi\f76e42a.rbs

      Filesize

      1KB

      MD5

      89b0a75ae887e998146db49e19d26b79

      SHA1

      0957952cadb0df2acbe65e57444db02d73fc5559

      SHA256

      98ac344a809645366b18983939dce6b65148da22efe99633e7b012034774dc93

      SHA512

      e662282f070cf2f54b21098e1f8ceb34a52f3399157f86d26b70f07a4f0b5108a79acc1f958add3efc92b3c35cdb127e9a74537879de22a665795645c62fe235

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

      Filesize

      701KB

      MD5

      8703a1209bd5be3e9c15eb4e5db332de

      SHA1

      0e110df37f6315f3a76b12714afcc55323563388

      SHA256

      1db686635bcdde30163e1e624c4d8f107fd2a20507690151c69cc6a0c482207a

      SHA512

      2dbd2753264091580055bbbcde0c6de15c3eaa593f1c1eabf0d65cc886298149798dde80259058090b2bbb446dfab27589d90fe3f92411721d90c81c9234b9c4

    • C:\Windows\Installer\MSIE708.tmp

      Filesize

      389KB

      MD5

      b9545ed17695a32face8c3408a6a3553

      SHA1

      f6c31c9cd832ae2aebcd88e7b2fa6803ae93fc83

      SHA256

      1e0e63b446eecf6c9781c7d1cae1f46a3bb31654a70612f71f31538fb4f4729a

      SHA512

      f6d6dc40dcba5ff091452d7cc257427dcb7ce2a21816b4fec2ee249e63246b64667f5c4095220623533243103876433ef8c12c9b612c0e95fdfffe41d1504e04

    • \Users\Admin\AppData\Local\Temp\MSIBC6C.tmp

      Filesize

      436KB

      MD5

      475d20c0ea477a35660e3f67ecf0a1df

      SHA1

      67340739f51e1134ae8f0ffc5ae9dd710e8e3a08

      SHA256

      426e6cf199a8268e8a7763ec3a4dd7add982b28c51d89ebea90ca792cbae14dd

      SHA512

      99525aaab2ab608134b5d66b5313e7fc3c2e2877395c5c171897d7a6c66efb26b606de1a4cb01118c2738ea4b6542e4eb4983e631231b3f340bf85e509a9589e

    • memory/1624-63-0x00000000002B0000-0x00000000002C6000-memory.dmp

      Filesize

      88KB

    • memory/2000-57-0x0000000180000000-0x00000001800BA000-memory.dmp

      Filesize

      744KB

    • memory/2124-48-0x0000000000120000-0x0000000000122000-memory.dmp

      Filesize

      8KB