Analysis

  • max time kernel
    66s
  • max time network
    55s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/05/2024, 02:02

General

  • Target
    a9fa025fe912c8ad5e6566c675e045732c4d89f4187bfd94c4e916dd9fe25417.msi
  • Size 1.3MB
  • Sample240501-cf7tvafe79
  • SHA256 a9fa025fe912c8ad5e6566c675e045732c4d89f4187bfd94c4e916dd9fe25417
  • MD5 SHA1 SHA512 SSDEEP
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
  • 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 10 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 10 IoCs
  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 13 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\a9fa025fe912c8ad5e6566c675e045732c4d89f4187bfd94c4e916dd9fe25417.msi
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:5052
  • 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:3592
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 814F7C66C5AE8B8A1CC7AF7177464666 C
      2⤵
      • Loads dropped DLL
      PID:1740
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:4032
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 2FD24A723E956339047864FD423960C4
        2⤵
        • Loads dropped DLL
        PID:2856
      • C:\Windows\Installer\MSI69B9.tmp
        "C:\Windows\Installer\MSI69B9.tmp" C:/Windows/System32/rundll32.exe C:\Users\Admin\AppData\Local\glosar\beta.dll, homq
        2⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        PID:2376
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:772
    • C:\Windows\System32\rundll32.exe
      "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Local\glosar\beta.dll, homq
      1⤵
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4568
      • C:\Windows\System32\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_f8571f7.dll", homq
        2⤵
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        PID:3056

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          e576794.rbs

          • Path C:\Config.Msi\e576794.rbs
          • Size 1KB
          • SHA256 f6105cd177f64021cf58a78752db5c82b63f62087856469bc6744aa3d8d0ff45
          • MD5 SHA1 SHA512

          MSI2EE0.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI2EE0.tmp
          • Size 436KB
          • SHA256 426e6cf199a8268e8a7763ec3a4dd7add982b28c51d89ebea90ca792cbae14dd
          • MD5 SHA1 SHA512 SSDEEP

          beta.dll

          • Path C:\Users\Admin\AppData\Local\glosar\beta.dll
          • Size 364KB
          • SHA256 53e65d071870f127bc6bf6c8e8ddfd131558153513976744ee7460eeb766d081
          • MD5 SHA1 SHA512 SSDEEP

          MSI69B9.tmp

          • Path C:\Windows\Installer\MSI69B9.tmp
          • Size 389KB
          • SHA256 1e0e63b446eecf6c9781c7d1cae1f46a3bb31654a70612f71f31538fb4f4729a
          • MD5 SHA1 SHA512 SSDEEP

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 24.1MB
          • SHA256 9ca688fea21b3d91e443cad73cb0608af77b5999073e59d248563490039e60eb
          • MD5 SHA1 SHA512 SSDEEP

          {65541368-1443-442b-8798-273c84d37ec7}_OnDiskSnapshotProp

          • Path \??\Volume{42d85be4-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{65541368-1443-442b-8798-273c84d37ec7}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 d18adb5eba5d9fb395fb8db9c8084e89ae3eac32e2dcca60152bd5f2a6fc7879
          • MD5 SHA1 SHA512 SSDEEP

          memory/3056-62-0x000001C644D90000-0x000001C644DA4000-memory.dmp

          memory/4568-48-0x0000000180000000-0x0000000180066000-memory.dmp