Analysis

  • max time kernel
    93s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/04/2024, 01:40

General

  • Target
    b9dbe9649c761b0eee38419ac39dcd7e90486ee34cd0eb56adde6b2f645f2960.msi
  • Size 1.5MB
  • Sample240405-b3xfyshd78
  • SHA256 b9dbe9649c761b0eee38419ac39dcd7e90486ee34cd0eb56adde6b2f645f2960
  • MD5 SHA1 SHA512 SSDEEP
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 8 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\b9dbe9649c761b0eee38419ac39dcd7e90486ee34cd0eb56adde6b2f645f2960.msi
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1424
  • 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:2680
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding C7E7FC7EB43360FA499097AAC89F29DE C
      2⤵
      • Loads dropped DLL
      PID:4528
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2724
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding C8901BB8A2EF3532ED65FDF8304E649D
        2⤵
        • Loads dropped DLL
        PID:3436
      • C:\Windows\Installer\MSI56CE.tmp
        "C:\Windows\Installer\MSI56CE.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:3504
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:3788
    • 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
      • Suspicious use of WriteProcessMemory
      PID:4712
      • C:\Windows\System32\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Roaming\Custom_update\Update_33b0dade.dll", homi
        2⤵
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        PID:4800

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e575593.rbs

          • Path C:\Config.Msi\e575593.rbs
          • Size 1KB
          • SHA256 28a35342a48b9f64fe101fd5ef164b3b0128cf6ffe5393fed0846b9861c95afe
          • MD5 SHA1 SHA512

          MSI279C.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\MSI279C.tmp
          • Size 436KB
          • SHA256 426e6cf199a8268e8a7763ec3a4dd7add982b28c51d89ebea90ca792cbae14dd
          • MD5 SHA1 SHA512 SSDEEP

          mbae-api-na.dll

          • Path C:\Users\Admin\AppData\Local\digistamp\mbae-api-na.dll
          • Size 740KB
          • SHA256 9856b816a9d14d3b7db32f30b07624e4bcda7f1e265a7bb7a3e3476bfd54a759
          • MD5 SHA1 SHA512 SSDEEP

          MSI56CE.tmp

          • Path C:\Windows\Installer\MSI56CE.tmp
          • Size 389KB
          • SHA256 1e0e63b446eecf6c9781c7d1cae1f46a3bb31654a70612f71f31538fb4f4729a
          • MD5 SHA1 SHA512 SSDEEP

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 23.7MB
          • SHA256 03ee88ac6cfa8b90f767a379b09f323fcf41560d16c04b476bb7f9d87b59476b
          • MD5 SHA1 SHA512 SSDEEP

          {c0d1d8e0-1ecf-4812-9c3f-cf5f06c8f0ef}_OnDiskSnapshotProp

          • Path \??\Volume{fb412698-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{c0d1d8e0-1ecf-4812-9c3f-cf5f06c8f0ef}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 dc99cb20c835bd942b6c312921410d28de8e8ee5555c8f75e3c6f602f4d978f5
          • MD5 SHA1 SHA512 SSDEEP

          memory/4712-56-0x0000016659F70000-0x0000016659F84000-memory.dmp

          memory/4712-52-0x0000000180000000-0x00000001800BF000-memory.dmp

          memory/4712-50-0x0000016659F70000-0x0000016659F84000-memory.dmp

          memory/4712-49-0x0000016659F50000-0x0000016659F64000-memory.dmp

          memory/4712-48-0x0000016659F70000-0x0000016659F84000-memory.dmp

          memory/4712-47-0x0000000180000000-0x00000001800BF000-memory.dmp

          memory/4800-55-0x0000000180000000-0x00000001800BF000-memory.dmp

          memory/4800-68-0x0000021315710000-0x0000021315724000-memory.dmp

          memory/4800-69-0x00000213156D0000-0x00000213156E4000-memory.dmp

          memory/4800-70-0x0000021315710000-0x0000021315724000-memory.dmp

          memory/4800-71-0x0000021315710000-0x0000021315724000-memory.dmp