Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20251231-en
  • resource tags

    arch:x64arch:x86image:win11-20251231-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    10/01/2026, 03:07

General

  • Target
    2026-01-10_ffd73f697b6d13c629190672569ce577_conti.exe
  • Size 358KB
  • Sample260110-dmpsaact2f
  • SHA256 9bf7d4ea7392ee39fe577a67c7456fb83eda3e41f4f17c987317dfd784a217b8
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Babuk Locker

    RaaS first seen in 2021 initially called Vasa Locker.

  • Babuk family
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Renames multiple (2282) files with added filename extension

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

  • Credentials from Password Stores: Windows Credential Manager 1 TTPs

    Suspicious access to Credentials History.

  • Drops startup file 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 4 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Interacts with shadow copies 3 TTPs 2 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Modifies registry class 35 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 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\2026-01-10_ffd73f697b6d13c629190672569ce577_conti.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-01-10_ffd73f697b6d13c629190672569ce577_conti.exe"
    1⤵
    • Drops startup file
    • Enumerates connected drives
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:5000
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3344
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:5088
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4232
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:1492
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4468
  • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
    "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
    1⤵
    • Checks processor information in registry
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:3148
  • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
    "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
    1⤵
    • Enumerates system info in registry
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:1620

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        StartUnifiedTileModelCache.dat

        • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\StartUnifiedTileModelCache.dat
        • Size 33KB
        • SHA256 bbcea13ec2394120ef346a864d5cf9860f4081fe1a265b7e22dcf6038be16e40
        • MD5 SHA1 SHA512 SSDEEP TLSH

        StartUnifiedTileModelCache.dat

        • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\StartUnifiedTileModelCache.dat
        • Size 26KB
        • SHA256 4b78223ec90282a781a1a78376021e37aadb73a2ebafbbf6453c88bf666d3dce
        • MD5 SHA1 SHA512 SSDEEP TLSH

        StartUnifiedTileModelCache.dat

        • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\StartUnifiedTileModelCache.dat
        • Size 32KB
        • SHA256 4c59ad8356de73d59f72ee8176ca2c9cd02034353b25fd68b06be8c72dea2426
        • MD5 SHA1 SHA512 SSDEEP TLSH

        www.bing[1].xml

        • Path C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\AC\Microsoft\Internet Explorer\DOMStore\2QBGWIRQ\www.bing[1].xml
        • Size 97B
        • SHA256 31cb0f55a3e2607d01f1cd575b42d6d77b90452149178f1d370ca8ceb55fa23f
        • MD5 SHA1 SHA512 TLSH

        www.bing[1].xml

        • Path C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\AC\Microsoft\Internet Explorer\DOMStore\2QBGWIRQ\www.bing[1].xml
        • Size 12KB
        • SHA256 49ab64e0983dbb2360851c711facfbcdffdc702f64206e75780f0f68c9ac1ff2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        SearchUnifiedTileModelCache.dat

        • Path C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\TempState\SearchUnifiedTileModelCache.dat
        • Size 29KB
        • SHA256 3c2f53cabe09c39d411becf659f59b1e024058e1b54da7a2adec8f43322709a2
        • MD5 SHA1 SHA512 SSDEEP TLSH

        SearchUnifiedTileModelCache.dat

        • Path C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\TempState\SearchUnifiedTileModelCache.dat
        • Size 29KB
        • SHA256 9505a402f42cea48e7e8f9158e4bb54255b724ad5c39677ae28e85f5d0f895f3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Como restaurar seus arquivos.txt

        • Path F:\Como restaurar seus arquivos.txt
        • Size 1KB
        • SHA256 8395d7bad7ba2adc14d41fcc899ca7d92de2b5f59b1f61700531a13b3f44f27f
        • MD5 SHA1 SHA512 TLSH

        memory/1620-1695-0x00000289F7370000-0x00000289F7470000-memory.dmp

        memory/1620-1648-0x00000288F6B40000-0x00000288F6B60000-memory.dmp

        memory/1620-1853-0x00000289F79C0000-0x00000289F79E0000-memory.dmp

        memory/1620-1671-0x00000289F7690000-0x00000289F76B0000-memory.dmp

        memory/1620-1647-0x00000289F6F30000-0x00000289F6F50000-memory.dmp

        memory/1620-1646-0x00000288F6510000-0x00000288F6610000-memory.dmp

        memory/1620-1559-0x00000288F33B0000-0x00000288F34B0000-memory.dmp

        memory/1620-1600-0x00000288F3200000-0x00000288F3300000-memory.dmp

        memory/1620-1617-0x00000288F6BA0000-0x00000288F6BC0000-memory.dmp

        memory/3148-1516-0x000001FD525F0000-0x000001FD525F1000-memory.dmp

        memory/3148-1508-0x000001FD525F0000-0x000001FD525F1000-memory.dmp

        memory/3148-1515-0x000001FD525F0000-0x000001FD525F1000-memory.dmp

        memory/3148-1509-0x000001FD525F0000-0x000001FD525F1000-memory.dmp

        memory/3148-1517-0x000001FD525F0000-0x000001FD525F1000-memory.dmp

        memory/3148-1518-0x000001FD525F0000-0x000001FD525F1000-memory.dmp

        memory/3148-1519-0x000001FD525F0000-0x000001FD525F1000-memory.dmp

        memory/3148-1514-0x000001FD525F0000-0x000001FD525F1000-memory.dmp

        memory/3148-1520-0x000001FD525F0000-0x000001FD525F1000-memory.dmp

        memory/3148-1510-0x000001FD525F0000-0x000001FD525F1000-memory.dmp

        memory/5000-63-0x00007FF7134C0000-0x00007FF713513000-memory.dmp

        memory/5000-2234-0x00007FF7134C0000-0x00007FF713513000-memory.dmp