Analysis

  • max time kernel
    118s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    04-04-2024 17:38

General

  • Target

    slack.msi

  • Size

    1.5MB

  • MD5

    3703f47cfa7ce06c14374f173c68daf0

  • SHA1

    11826292538317a69ffffac6fde43418af10c91c

  • SHA256

    b9dbe9649c761b0eee38419ac39dcd7e90486ee34cd0eb56adde6b2f645f2960

  • SHA512

    8126b9819d588253588b360b21a8ec0fbf12e90f7d7c7d8f01c81b730d7993409ef4c7ce044b3bdc066f745d4fd471fb2bd93fb7d8e7565f67d4e086622dce4b

  • SSDEEP

    24576:dFdxLNvYBSMvZCFlp8zBQSc0ZoCvqKwx0ECIgYmfLVYeBZr7AmAyTicXFyiYlHfe:dFtvY/W8zBQSc0ZnSKeZKumZr7AByIi+

Score
10/10

Malware Config

Extracted

Family

latrodectus

C2

https://titnovacrion.top/live/

https://skinnyjeanso.com/live/

Signatures

  • Latrodectus loader

    Latrodectus is a loader written in C++.

  • Detect larodectus Loader variant 2 2 IoCs
  • 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 10 IoCs
  • Modifies data under HKEY_USERS 43 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • 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\slack.msi
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:2224
  • 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:2516
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding A7C9D0532734E10EDC85F44ED0B25E5F C
      2⤵
      • Loads dropped DLL
      PID:2624
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 71A83129182720517D0E05A72449C1C2
      2⤵
      • Loads dropped DLL
      PID:1588
    • C:\Windows\Installer\MSIA289.tmp
      "C:\Windows\Installer\MSIA289.tmp" C:\Windows\System32\rundll32.exe C:\Users\Admin\AppData\Local\digistamp\mbae-api-na.dll, homi
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      PID:1020
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
      PID:2444
    • C:\Windows\system32\DrvInst.exe
      DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000005D4" "00000000000005A0"
      1⤵
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      PID:2760
    • C:\Windows\System32\rundll32.exe
      "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Local\digistamp\mbae-api-na.dll, homi
      1⤵
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      PID:1100

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Config.Msi\f769ced.rbs

      Filesize

      1KB

      MD5

      149a42945087337b20d622abbbd13436

      SHA1

      8b39b1865db7723f685f6401d2e0c2d9dac7f388

      SHA256

      874618442dbc42a3cc13d05a0770b8c12fddd0d9d3294b761116e41351e808cd

      SHA512

      9f05b9682a375e4d40684a6ef23ede18df2fcc172219e47bbf7e2fd8368bda43d3c4ac15ab0480c08e84a3d0282f4363f24e4dda106f5e9dc6a82c11577e9df4

    • C:\Users\Admin\AppData\Local\Temp\MSI510D.tmp

      Filesize

      436KB

      MD5

      475d20c0ea477a35660e3f67ecf0a1df

      SHA1

      67340739f51e1134ae8f0ffc5ae9dd710e8e3a08

      SHA256

      426e6cf199a8268e8a7763ec3a4dd7add982b28c51d89ebea90ca792cbae14dd

      SHA512

      99525aaab2ab608134b5d66b5313e7fc3c2e2877395c5c171897d7a6c66efb26b606de1a4cb01118c2738ea4b6542e4eb4983e631231b3f340bf85e509a9589e

    • C:\Users\Admin\AppData\Local\digistamp\mbae-api-na.dll

      Filesize

      740KB

      MD5

      f46e75eb89214e2fbb850b9d29b9f515

      SHA1

      1f35835a08f96fd9198864b8ded5baa1a27db710

      SHA256

      9856b816a9d14d3b7db32f30b07624e4bcda7f1e265a7bb7a3e3476bfd54a759

      SHA512

      9168a57de11da133d0ba98c8b7491520e9c75ad4678a5ac11e9220e483bcf7a2b9cc868ffc19de60094e87a5059303d20bd1f4a30c4f567ab4c3237f5f4c520d

    • C:\Windows\Installer\MSIA289.tmp

      Filesize

      389KB

      MD5

      b9545ed17695a32face8c3408a6a3553

      SHA1

      f6c31c9cd832ae2aebcd88e7b2fa6803ae93fc83

      SHA256

      1e0e63b446eecf6c9781c7d1cae1f46a3bb31654a70612f71f31538fb4f4729a

      SHA512

      f6d6dc40dcba5ff091452d7cc257427dcb7ce2a21816b4fec2ee249e63246b64667f5c4095220623533243103876433ef8c12c9b612c0e95fdfffe41d1504e04

    • memory/1020-37-0x0000000000130000-0x0000000000132000-memory.dmp

      Filesize

      8KB

    • memory/1100-43-0x0000000180000000-0x00000001800BF000-memory.dmp

      Filesize

      764KB

    • memory/1100-44-0x0000000180000000-0x00000001800BF000-memory.dmp

      Filesize

      764KB

    • memory/1100-45-0x00000000001D0000-0x00000000001E4000-memory.dmp

      Filesize

      80KB

    • memory/1100-48-0x00000000001B0000-0x00000000001C4000-memory.dmp

      Filesize

      80KB

    • memory/1100-50-0x0000000180000000-0x00000001800BF000-memory.dmp

      Filesize

      764KB