Resubmissions

11/11/2026, 02:18

261111-crd1xadt6p10

11/11/2026, 02:14

261111-cn8q4set4x10

11/11/2026, 01:54

261111-cb2f9sts2r10

08/09/2026, 17:42

260908-v91lqsvzby10

08/09/2026, 14:47

260908-r5xshastaw

06/09/2026, 10:46

260906-mtz19shn5s10

02/09/2026, 16:53

260902-vefcbaxhjb10

02/09/2026, 16:53

260902-vd1xmaxgqd

26/04/2026, 11:25

260426-njgydaas6r10

24/04/2026, 20:04

260424-ys8gssbv3l10

Analysis

  • max time kernel
    120s
  • max time network
    127s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-es
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-eslocale:es-esos:windows11-ltsc_2024-x64systemwindows
  • submitted
    11/11/2026, 01:54

General

  • Target
    Ransomware/WinlockerVB6Blacksod.exe
  • Size 2.4MB
  • Sample261111-cb2f9sts2r
  • SHA256 68b0e1932f3b4439865be848c2d592d5174dbdbaab8f66104a0e5b28c928ee0c
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 16 IoCs
  • Badlisted process makes network request 1 IoCs

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

  • Enumerates connected drives 3 TTPs 64 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 25 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies data under HKEY_USERS 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Ransomware\WinlockerVB6Blacksod.exe
    "C:\Users\Admin\AppData\Local\Temp\Ransomware\WinlockerVB6Blacksod.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3128
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\system32\msiexec.exe" /i "C:\Users\Admin\AppData\Roaming\Windows\Error file remover 1.0.0.0\install\0A01606\Error file remover.msi" AI_SETUPEXEPATH=C:\Users\Admin\AppData\Local\Temp\Ransomware\WinlockerVB6Blacksod.exe SETUPEXEDIR=C:\Users\Admin\AppData\Local\Temp\Ransomware\ EXE_CMD_LINE="/exenoupdates /exelang 0 /noprereqs "
      2⤵
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      PID:5948
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Modifies WinLogon for persistence
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1360
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 1031BA67A815657BFEB2887AF07D5AD7
      2⤵
      • Loads dropped DLL
      • Badlisted process makes network request
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:840
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding E0FE932A588996DCECD745F384A910B1 E Global\MSI0000
      2⤵
      • Loads dropped DLL
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:5976
  • C:\Program Files (x86)\Windows\Error file remover\fatalerror.exe
    "C:\Program Files (x86)\Windows\Error file remover\fatalerror.exe"
    1⤵
    • Executes dropped EXE
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    PID:620
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x00000000000004D8 0x00000000000004C4
    1⤵
      PID:4580

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          e598b03.rbs

          • Path C:\Config.Msi\e598b03.rbs
          • Size 99KB
          • SHA256 b9f21a1136a9e5adcccc63da49d28f8b6261c05ce4c48b9640bda6fd73b551f5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          tracking.ini

          • Path C:\Users\Admin\AppData\Local\Temp\AdvinstAnalytics\Error file remover\1.0.0.0\tracking.ini
          • Size 84B
          • SHA256 660a99445cffd50e66b95b15dfdc5247fda295a6758df4be6027574cba37ee11
          • MD5 SHA1 SHA512 TLSH

          tracking.ini

          • Path C:\Users\Admin\AppData\Local\Temp\AdvinstAnalytics\Error file remover\1.0.0.0\tracking.ini
          • Size 84B
          • SHA256 800a604baa132c7edd91cebfaf6762b228ba86af6b0e7cbf5fda7b728790556d
          • MD5 SHA1 SHA512 TLSH

          {5126AA3F-9C08-4167-BF99-151531DD7620}.session

          • Path C:\Users\Admin\AppData\Local\Temp\AdvinstAnalytics\Error file remover\1.0.0.0\{5126AA3F-9C08-4167-BF99-151531DD7620}.session
          • Size 4KB
          • SHA256 0690e9d9481fd4fac5936084089c49ad01306d74bc727916191c919d59ca30e2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          {5126AA3F-9C08-4167-BF99-151531DD7620}.session

          • Path C:\Users\Admin\AppData\Local\Temp\AdvinstAnalytics\Error file remover\1.0.0.0\{5126AA3F-9C08-4167-BF99-151531DD7620}.session
          • Size 4KB
          • SHA256 30ddb2888bd86e652e148c9b5aa02471ca4389364e27ed2de7cb0bb6e796a80e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Error file remover.msi

          • Path C:\Users\Admin\AppData\Roaming\Windows\Error file remover 1.0.0.0\install\0A01606\Error file remover.msi
          • Size 1010KB
          • SHA256 05c18698c3dc3b2709afd3355ad5b91a60b2121a52e5fcc474e4e47fb8e95e2a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Windows Logoff Sound.wav

          • Path C:\Users\Admin\AppData\Roaming\Windows\Error file remover 1.0.0.0\install\0A01606\Windows Logoff Sound.wav
          • Size 724KB
          • SHA256 bc26b1b97eeb45995bbd5f854db19f994cce1bb9ac9fb625eb207302dccdf344
          • MD5 SHA1 SHA512 SSDEEP TLSH

          fatalerror.exe

          • Path C:\Users\Admin\AppData\Roaming\Windows\Error file remover 1.0.0.0\install\0A01606\fatalerror.exe
          • Size 24KB
          • SHA256 e9573a3041e5a45ed8133576d199eb8d12f8922bbe47d194fef9ac166a96b9e2
          • MD5 SHA1 SHA512 SSDEEP TLSH

          decoder.dll

          • Path C:\Users\Admin\AppData\Roaming\Windows\Error file remover 1.0.0.0\install\decoder.dll
          • Size 126KB
          • SHA256 76133e832c15aa5cbc49fb3ba09e0b8dd467c307688be2c9e85e79d3bf62c089
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI8BFA.tmp

          • Path C:\Windows\Installer\MSI8BFA.tmp
          • Size 88KB
          • SHA256 252b7423b01ff81aea6fe7b40de91abf49f515e9c0c7b95aa982756889f8ac1a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI8C78.tmp

          • Path C:\Windows\Installer\MSI8C78.tmp
          • Size 180KB
          • SHA256 a0367875b68b1699d2647a748278ebce64d5be633598580977aa126a81cf57c5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI8F7D.tmp

          • Path C:\Windows\Installer\MSI8F7D.tmp
          • Size 96KB
          • SHA256 604e79fe970c5ed044517a9a35e4690ea6f7d959d21173ebef45cdd3d3a22bdd
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI8FDB.tmp

          • Path C:\Windows\Installer\MSI8FDB.tmp
          • Size 128KB
          • SHA256 59ff5bc12b155cc2e666bd8bc34195c3750eb742542374fc5e53fb22d11e862f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          MSI903A.tmp

          • Path C:\Windows\Installer\MSI903A.tmp
          • Size 312KB
          • SHA256 9c155d4214cebda186647c035ada552963dcac8f88a6b38a23ea34f9ecd1d437
          • MD5 SHA1 SHA512 SSDEEP TLSH