Resubmissions

05/09/2026, 04:49

260905-ff6hkaxanc9

05/09/2026, 03:04

260905-dk37wsdq5s9

04/09/2026, 03:44

260904-eatq5sbm6x9

01/09/2026, 01:37

260901-b19cqsvsfz9

13/10/2025, 23:14

251013-28clvabm6x9

Analysis

  • max time kernel
    150s
  • max time network
    128s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    05/09/2026, 03:04

General

  • Target
    1e7c0f7091e8ed3687b06556cbbda638af99e35d372ba257cedb8ada4b2c43fe.exe
  • Size 313KB
  • Sample260905-dk37wsdq5s
  • SHA256 1e7c0f7091e8ed3687b06556cbbda638af99e35d372ba257cedb8ada4b2c43fe
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Renames multiple (3968) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Drops file in Drivers directory 4 IoCs
  • Manipulates Digital Signatures 1 IoCs

    Attackers can apply techniques such as modifying certain DLL exports to make their binary seem valid.

  • Credentials from Password Stores: Windows Credential Manager 1 TTPs

    Suspicious access to Credentials History.

  • Drops desktop.ini file(s) 64 IoCs
  • Drops file in System32 directory 64 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 64 IoCs
  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • 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.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs
  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\1e7c0f7091e8ed3687b06556cbbda638af99e35d372ba257cedb8ada4b2c43fe.exe
    "C:\Users\Admin\AppData\Local\Temp\1e7c0f7091e8ed3687b06556cbbda638af99e35d372ba257cedb8ada4b2c43fe.exe"
    1⤵
    • Drops file in Drivers directory
    • Manipulates Digital Signatures
    • Drops desktop.ini file(s)
    • Drops file in System32 directory
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4544
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{84775516-5F09-4E25-93DB-571F61E22602}'" delete
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:908
      • C:\Windows\System32\wbem\WMIC.exe
        C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{84775516-5F09-4E25-93DB-571F61E22602}'" delete
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2652
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4536

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        desktop.ini

        • Path C:\$Recycle.Bin\S-1-5-21-2115213192-531537726-3295841909-1000\desktop.ini
        • Size 663B
        • SHA256 532033c5ba6dacca222f48893c21f6a8444dc8b90ab5e1a35cdcaa4d07abf96d
        • MD5 SHA1 SHA512 TLSH

        readme.txt

        • Path C:\$Recycle.Bin\readme.txt
        • Size 384B
        • SHA256 0d4ef1174f4809f05bb1ca18862c96aa22fb330d2e44da621d13f1c62e511d23
        • MD5 SHA1 SHA512 TLSH