Analysis

  • max time kernel
    143s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/11/2024, 02:02

General

  • Target
    025abbec1724b9180b369fe116da9d90ae47a4996f6a4e28e8a947bac1e0c741.msi
  • Size 2.0MB
  • Sample241114-cf6lsaslax
  • SHA256 025abbec1724b9180b369fe116da9d90ae47a4996f6a4e28e8a947bac1e0c741
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • latrodectus

C2
  • https://rolefenik.com/test/

  • https://ergiholim.com/test/

Signatures

  • Detects Latrodectus 3 IoCs

    Detects Latrodectus v1.4.

  • Latrodectus family
  • Latrodectus loader

    Latrodectus is a loader written in C++.

  • Blocklisted process makes network request 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 12 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 6 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.

  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 63 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of UnmapMainImage
    PID:3560
    • C:\Windows\system32\msiexec.exe
      msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\025abbec1724b9180b369fe116da9d90ae47a4996f6a4e28e8a947bac1e0c741.msi
      2⤵
      • Enumerates connected drives
      • Event Triggered Execution: Installer Packages
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:4140
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\SysWOW64\rundll32.exe" C:\Users\Admin\AppData\Roaming\apptext.dll, Object
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1048
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\SysWOW64\rundll32.exe" C:\Users\Admin\AppData\Roaming\apptext.dll, Object
        3⤵
        • Blocklisted process makes network request
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:4264
  • 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:3716
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2160
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 5375B5D9C7CFF9A84E617E2DE9E74A83
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:2188
    • C:\Windows\Installer\MSICF4B.tmp
      "C:\Windows\Installer\MSICF4B.tmp" /DontWait C:/Windows/SysWOW64/rundll32.exe C:\Users\Admin\AppData\Roaming\apptext.dll, Object
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1372
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:2372

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        e57cbaf.rbs

        • Path C:\Config.Msi\e57cbaf.rbs
        • Size 1KB
        • SHA256 54ad38f4697b609166b36267f8fabd24905dc751ff40f3d65e34cdcb2f8acc3a
        • MD5 SHA1 SHA512

        apptext.dll

        • Path C:\Users\Admin\AppData\Roaming\apptext.dll
        • Size 1.6MB
        • SHA256 f8e3eef1fda5969a7aabcc8fb5cc9f5fe245bbf6cc8e480459977b8e91eab9bd
        • MD5 SHA1 SHA512 SSDEEP

        MSICC0A.tmp

        • Path C:\Windows\Installer\MSICC0A.tmp
        • Size 436KB
        • SHA256 426e6cf199a8268e8a7763ec3a4dd7add982b28c51d89ebea90ca792cbae14dd
        • MD5 SHA1 SHA512 SSDEEP

        MSICF4B.tmp

        • Path C:\Windows\Installer\MSICF4B.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 ec3ea168b5a0cbadb06bab0a783c67d252afe54e934c96483aa8762709ad8650
        • MD5 SHA1 SHA512 SSDEEP

        {b079e10d-1e48-4fc0-83b9-c58592369871}_OnDiskSnapshotProp

        • Path \??\Volume{48d314f9-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{b079e10d-1e48-4fc0-83b9-c58592369871}_OnDiskSnapshotProp
        • Size 6KB
        • SHA256 25389d5b9a3cf2e44c56d250579f8fa3bb13db5188d3e591a8aaa6bae4bb067e
        • MD5 SHA1 SHA512 SSDEEP

        memory/3560-72-0x0000000001630000-0x0000000001645000-memory.dmp

        memory/3560-71-0x0000000001630000-0x0000000001645000-memory.dmp

        memory/4264-70-0x00007FF463A60000-0x00007FF463A61000-memory.dmp

        memory/4264-69-0x00007FF463A70000-0x00007FF463A71000-memory.dmp

        memory/4264-67-0x00007FF463A90000-0x00007FF463A91000-memory.dmp

        memory/4264-66-0x00007FF463AA0000-0x00007FF463AB5000-memory.dmp

        memory/4264-65-0x00007FF463AC0000-0x00007FF463AC1000-memory.dmp

        memory/4264-68-0x00007FF463A80000-0x00007FF463A81000-memory.dmp

        memory/4264-45-0x000001FC8BA30000-0x000001FC8BA7C000-memory.dmp

        memory/4264-78-0x000001FC8BA30000-0x000001FC8BA7C000-memory.dmp