Resubmissions

17/04/2024, 14:30

240417-rt43faca4910

17/04/2024, 14:30

240417-rt4fxade5v10

17/04/2024, 14:29

240417-rtyknaca4410

17/04/2024, 14:29

240417-rtsz6sde3z10

17/04/2024, 14:29

240417-rtspeade3y10

31/07/2022, 05:21

220731-f17w5aade210

Analysis

  • max time kernel
    1198s
  • max time network
    1177s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240412-en
  • resource tags

    arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    17/04/2024, 14:30

General

  • Target
    94b88650ebf3fe56877d27316b51a4ddf27b4182892b167b5b03b35d84c95d02.exe
  • Size 1.5MB
  • Sample240417-rt4fxade5v
  • SHA256 94b88650ebf3fe56877d27316b51a4ddf27b4182892b167b5b03b35d84c95d02
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Troldesh, Shade, Encoder.858

    Troldesh is a ransomware spread by malspam.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Modifies Installed Components in the registry 2 TTPs 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • UPX packed file 64 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates connected drives 3 TTPs 3 IoCs

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

  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 58 IoCs

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

  • 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 12 IoCs
  • Interacts with shadow copies 2 TTPs 3 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 6 IoCs
  • Modifies registry class 58 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 45 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of SetWindowsHookEx 9 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • Uses Volume Shadow Copy WMI provider

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

  • 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\94b88650ebf3fe56877d27316b51a4ddf27b4182892b167b5b03b35d84c95d02.exe
    "C:\Users\Admin\AppData\Local\Temp\94b88650ebf3fe56877d27316b51a4ddf27b4182892b167b5b03b35d84c95d02.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3772
    • C:\Users\Admin\AppData\Local\Temp\94b88650ebf3fe56877d27316b51a4ddf27b4182892b167b5b03b35d84c95d02.exe
      C:\Users\Admin\AppData\Local\Temp\94b88650ebf3fe56877d27316b51a4ddf27b4182892b167b5b03b35d84c95d02.exe
      2⤵
      • Adds Run key to start application
      • Enumerates connected drives
      • Sets desktop wallpaper using registry
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3140
      • C:\Windows\system32\vssadmin.exe
        C:\Windows\system32\vssadmin.exe List Shadows
        3⤵
        • Interacts with shadow copies
        PID:748
      • C:\Windows\system32\vssadmin.exe
        C:\Windows\system32\vssadmin.exe Delete Shadows /All /Quiet
        3⤵
        • Interacts with shadow copies
        PID:3612
      • C:\Windows\system32\vssadmin.exe
        C:\Windows\system32\vssadmin.exe List Shadows
        3⤵
        • Interacts with shadow copies
        PID:4852
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3112
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Modifies Installed Components in the registry
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:3236
  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4516
    • C:\Windows\explorer.exe
      explorer.exe /LOADSAVEDWINDOWS
      2⤵
      • Modifies Installed Components in the registry
      • Enumerates connected drives
      • Checks SCSI registry key(s)
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:4844
  • 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 Internet Explorer settings
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:4784
  • 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:3360
  • 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 Internet Explorer settings
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:3584
  • 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 Internet Explorer settings
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:2444
  • 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 Internet Explorer settings
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:4428
  • 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 Internet Explorer settings
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:3020
  • 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 Internet Explorer settings
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:2724

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        iconcache_32.db

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\iconcache_32.db
        • Size 1024KB
        • SHA256 505bf118f44fc36780af6415be4b7bfe8c3aa0eb0c2865ab640eaf540fa667f0
        • MD5 SHA1 SHA512 SSDEEP

        iconcache_48.db

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\iconcache_48.db
        • Size 1024KB
        • SHA256 6250edbd1cd63d87502a17625d9d6d28517711c0a82e36c866d82c62b8f19e61
        • MD5 SHA1 SHA512 SSDEEP

        iconcache_48.db

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\iconcache_48.db
        • Size 1024KB
        • SHA256 2d7eb59c68e3640279a19d44cc11d0a8fe2bf8315e7dd91649985603bdcd6e64
        • MD5 SHA1 SHA512 SSDEEP

        iconcache_idx.db

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\iconcache_idx.db
        • Size 7KB
        • SHA256 08cf4cf53f874671b193bde236c9a51cf1ad25a42581372dd5023155991d608b
        • MD5 SHA1 SHA512 SSDEEP

        iconcache_idx.db

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\iconcache_idx.db
        • Size 7KB
        • SHA256 26ce65ff25b0f046fee95c6dec682a70e269700ca976ee644b34a81b39234020
        • MD5 SHA1 SHA512 SSDEEP

        thumbcache_16.db

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\thumbcache_16.db
        • Size 24B
        • SHA256 c48e42e9ab4e25b92c43a7b0416d463b9ff7c69541e4623a39513bc98085f424
        • MD5 SHA1 SHA512

        thumbcache_16.db

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\thumbcache_16.db
        • Size 1024KB
        • SHA256 31f9d6ad5fb63d94c4f14cc4defd96b1cf6e95bb386878e7f9ed789679c6dc2e
        • MD5 SHA1 SHA512 SSDEEP

        thumbcache_256.db

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\thumbcache_256.db
        • Size 1024KB
        • SHA256 a77f88fe6b7ee1577c55a042651ced30cacd400fa4e6265350ee24e58c0522e6
        • MD5 SHA1 SHA512 SSDEEP

        thumbcache_48.db

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\thumbcache_48.db
        • Size 24B
        • SHA256 d3c9d1ff7b54b653c6a1125cac49f52070338a2dd271817bba8853e99c0f33a9
        • MD5 SHA1 SHA512

        thumbcache_idx.db

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\thumbcache_idx.db
        • Size 7KB
        • SHA256 e7caf249abb90245e5e6d9e5716c6359c65808326fc3a0578156f973f94ca56d
        • MD5 SHA1 SHA512 SSDEEP

        thumbcache_idx.db

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\thumbcache_idx.db
        • Size 7KB
        • SHA256 b74a40bdfabd5c47c0b505f5d9f164e8d5eb12cef6adc4196f6cc16132f3e559
        • MD5 SHA1 SHA512 SSDEEP

        StartUnifiedTileModelCache.dat

        • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\StartUnifiedTileModelCache.dat
        • Size 6KB
        • SHA256 2175f2f5ff32d4ca7496faf6f4eea49e73b7b935e68c08a0d7e82a9e2239cda6
        • MD5 SHA1 SHA512 SSDEEP

        StartUnifiedTileModelCache.dat

        • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState\StartUnifiedTileModelCache.dat
        • Size 10KB
        • SHA256 f9a35ba678da0c5210929381bb0ee1a02c1d794f66fc8336090291f8de3f3f78
        • MD5 SHA1 SHA512 SSDEEP

        AppCache133578535265347120.txt

        • Path C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\LocalState\DeviceSearchCache\AppCache133578535265347120.txt
        • Size 2KB
        • SHA256 e7abcd543a39be760c610fb1cd8a101abfffc6002e47aaf7dea39b31f94a3531
        • MD5 SHA1 SHA512

        SearchUnifiedTileModelCache.dat

        • Path C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\TempState\SearchUnifiedTileModelCache.dat
        • Size 2KB
        • SHA256 798187064fe76693b6d43336013ce439514fd2626290ead457e99c89dbb3607b
        • MD5 SHA1 SHA512

        www.bing[1].xml

        • Path C:\Users\Admin\AppData\Local\Packages\microsoftwindows.client.cbs_cw5n1h2txyewy\AC\Microsoft\Internet Explorer\DOMStore\OC9I7LFD\www.bing[1].xml
        • Size 13B
        • SHA256 b71e4d17274636b97179ba2d97c742735b6510eb54f22893d3a2daff2ceb28db
        • MD5 SHA1 SHA512

        C2445B77C2445B77.bmp

        • Path C:\Users\Admin\AppData\Roaming\C2445B77C2445B77.bmp
        • Size 2.6MB
        • SHA256 4aa6cdb9ce95410f85a05b21967d224cfd49cf8c7fa18d9998304a16d4e4b5d8
        • MD5 SHA1 SHA512 SSDEEP

        memory/3140-53-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-63-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-30-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-31-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-32-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-33-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-34-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-35-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-36-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-37-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-38-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-39-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-40-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-41-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-42-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-43-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-44-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-45-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-46-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-47-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-48-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-49-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-50-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-51-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-52-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-7-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-54-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-55-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-56-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-57-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-58-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-59-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-60-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-61-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-62-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-29-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-64-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-65-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-66-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-67-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-68-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-69-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-70-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-71-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-72-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-73-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-74-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-75-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-76-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-77-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-78-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-28-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-27-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-26-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-25-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-24-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-21-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-20-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-19-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-18-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-17-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-8-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-10-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-15-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3140-16-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/3772-0-0x0000000000400000-0x000000000062A000-memory.dmp

        memory/3772-3-0x0000000000400000-0x000000000062A000-memory.dmp

        memory/3772-6-0x0000000003310000-0x0000000003344000-memory.dmp

        memory/3772-9-0x0000000000400000-0x000000000062A000-memory.dmp

        memory/3772-11-0x0000000003310000-0x0000000003344000-memory.dmp