Analysis

  • max time kernel
    141s
  • max time network
    123s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250610-en
  • resource tags

    arch:x64arch:x86image:win11-20250610-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    26/09/2025, 06:38

General

  • Target
    da6fbd0983a51f8a5f00bbcb2e26f7cb4adee36fa515c7e8cf12b9b4ea3acdec.msi
  • Size 2.3MB
  • Sample250926-hd3d8seq5x
  • SHA256 da6fbd0983a51f8a5f00bbcb2e26f7cb4adee36fa515c7e8cf12b9b4ea3acdec
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • latrodectus

C2
  • https://jojikloertoys.com/work/

  • https://djkloyfarelbister.com/work/

Attributes
  • group

    Orion

  • user_agent

    Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Tob 1.1)

aes.hex

Signatures

  • Detects Latrodectus 1 IoCs

    Detects Latrodectus v1.4.

  • Latrodectus family
  • Latrodectus loader

    Latrodectus is a loader written in C++.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Badlisted process makes network request 3 IoCs

    Network request originating from process or tool commonly abused by malware.

  • 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 16 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 7 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 63 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 15 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\da6fbd0983a51f8a5f00bbcb2e26f7cb4adee36fa515c7e8cf12b9b4ea3acdec.msi
    1⤵
    • Badlisted process makes network request
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:2320
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:6108
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3728
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 780A4F39D1422923B828F2CBA11F55F7
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:1808
    • C:\Users\Admin\AppData\Roaming\instance\igfx.exe
      "C:\Users\Admin\AppData\Roaming\instance\igfx.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:5372
      • C:\Windows\System32\cmd.exe
        /c reg query HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography /v MachineGuid | findstr MachineGuid
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:5304
        • C:\Windows\system32\reg.exe
          reg query HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography /v MachineGuid
          4⤵
            PID:1364
          • C:\Windows\system32\findstr.exe
            findstr MachineGuid
            4⤵
              PID:1360
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Checks SCSI registry key(s)
        • Suspicious use of AdjustPrivilegeToken
        PID:1536
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\instance\igfx.exe
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:4448
        • C:\Users\Admin\AppData\Roaming\instance\igfx.exe
          C:\Users\Admin\AppData\Roaming\instance\igfx.exe
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:6112

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            e579648.rbs

            • Path C:\Config.Msi\e579648.rbs
            • Size 1KB
            • SHA256 4e96fceecf35212516ec96963dbd7d513d8fd79b80bc362cf37d9aad2c8c89e5
            • MD5 SHA1 SHA512

            357F04AD41BCF5FE18FCB69F60C6680F_EA055783B7C17D53E12240715BA01EE0

            • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\357F04AD41BCF5FE18FCB69F60C6680F_EA055783B7C17D53E12240715BA01EE0
            • Size 1KB
            • SHA256 656cb0887ad0797669737f92323ead656071db0ca1188ea5236e946316578d6f
            • MD5 SHA1 SHA512

            9CB4373A4252DE8D2212929836304EC5_1AB74AA2E3A56E1B8AD8D3FEC287554E

            • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\9CB4373A4252DE8D2212929836304EC5_1AB74AA2E3A56E1B8AD8D3FEC287554E
            • Size 1KB
            • SHA256 ce15e49f66308c08e91479fed1cf13e14b5485e039d652fbd1625915a27ab945
            • MD5 SHA1 SHA512

            357F04AD41BCF5FE18FCB69F60C6680F_EA055783B7C17D53E12240715BA01EE0

            • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\357F04AD41BCF5FE18FCB69F60C6680F_EA055783B7C17D53E12240715BA01EE0
            • Size 540B
            • SHA256 352737ce3488923463aadc748873a4c7e7fb57610f5dc50933623ec66cacb9cc
            • MD5 SHA1 SHA512

            9CB4373A4252DE8D2212929836304EC5_1AB74AA2E3A56E1B8AD8D3FEC287554E

            • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\9CB4373A4252DE8D2212929836304EC5_1AB74AA2E3A56E1B8AD8D3FEC287554E
            • Size 536B
            • SHA256 c0023fd53423704210f8dd6d2e250a8b812579669cc26d2486fe0e4ea8a9c227
            • MD5 SHA1 SHA512

            WTSAPI32.dll

            • Path C:\Users\Admin\AppData\Roaming\instance\WTSAPI32.dll
            • Size 1.7MB
            • SHA256 a3b7ad3ac10b437dbe004aa6ec90b480a14304f2d5c59b77cb8559e96e1a6841
            • MD5 SHA1 SHA512 SSDEEP

            igfx.exe

            • Path C:\Users\Admin\AppData\Roaming\instance\igfx.exe
            • Size 973KB
            • SHA256 b7f8750851e70ec755343d322d7d81ea0fc1b12d4a1ab6a60e7c8605df4cd6a5
            • MD5 SHA1 SHA512 SSDEEP

            MSI9700.tmp

            • Path C:\Windows\Installer\MSI9700.tmp
            • Size 436KB
            • SHA256 426e6cf199a8268e8a7763ec3a4dd7add982b28c51d89ebea90ca792cbae14dd
            • MD5 SHA1 SHA512 SSDEEP

            MSI984B.tmp

            • Path C:\Windows\Installer\MSI984B.tmp
            • Size 355KB
            • SHA256 57c0d90010d3a476770c8085d2641cbf234b0ca47ec687ca4aabbf4db92df737
            • MD5 SHA1 SHA512 SSDEEP

            metadata-2

            • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
            • Size 24.6MB
            • SHA256 b8da98293e04dca32c6aa53b4314a1fbb073478a354bb46706931a7e3ab90f27
            • MD5 SHA1 SHA512 SSDEEP

            {98adcabf-38b5-4b01-b176-92dfba57fca1}_OnDiskSnapshotProp

            • Path \??\Volume{1fab7839-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{98adcabf-38b5-4b01-b176-92dfba57fca1}_OnDiskSnapshotProp
            • Size 6KB
            • SHA256 7951c4acf8a76985d2b6bc592ff0be747cedf5ebb469fc98957744110ef21fee
            • MD5 SHA1 SHA512 SSDEEP

            memory/5372-69-0x0000000180000000-0x0000000181CB7000-memory.dmp

            memory/5372-75-0x000001713C730000-0x000001713C747000-memory.dmp

            memory/5372-72-0x0000000180000000-0x0000000181CB7000-memory.dmp

            memory/6112-84-0x0000019F3ABA0000-0x0000019F3C857000-memory.dmp

            memory/6112-89-0x0000019F3ABA0000-0x0000019F3C857000-memory.dmp