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
    1792s
  • max time network
    1599s
  • platform
    windows10-1703_x64
  • resource
    win10-20240319-en
  • resource tags

    arch:x64arch:x86image:win10-20240319-enlocale:en-usos:windows10-1703-x64system
  • submitted
    17/04/2024, 14:30

General

  • Target
    94b88650ebf3fe56877d27316b51a4ddf27b4182892b167b5b03b35d84c95d02.exe
  • Size 1.5MB
  • Sample240417-rt43faca49
  • 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 1 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 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 26 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 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 1 IoCs
  • Modifies registry class 33 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 53 IoCs
  • Suspicious use of FindShellTrayWindow 44 IoCs
  • Suspicious use of SendNotifyMessage 23 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 10 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\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:1144
    • 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:4496
      • C:\Windows\system32\vssadmin.exe
        C:\Windows\system32\vssadmin.exe List Shadows
        3⤵
        • Interacts with shadow copies
        PID:4104
      • C:\Windows\system32\vssadmin.exe
        C:\Windows\system32\vssadmin.exe Delete Shadows /All /Quiet
        3⤵
        • Interacts with shadow copies
        PID:3820
      • C:\Windows\system32\vssadmin.exe
        C:\Windows\system32\vssadmin.exe List Shadows
        3⤵
        • Interacts with shadow copies
        PID:4116
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3392
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Modifies Installed Components in the registry
    • Enumerates connected drives
    • Drops file in Windows directory
    • Checks SCSI registry key(s)
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:2500
  • C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe
    "C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe" -ServerName:CortanaUI.AppXa50dqqa5gqv4a428c9y1jjw7m3btvepj.mca
    1⤵
    • Drops file in Windows directory
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:3184

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        iconcache_48.db

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\iconcache_48.db
        • Size 1024KB
        • SHA256 332e18f95250354a2ac9a397ab2791b3688ef1119425aebe4210c5f41313cbe6
        • MD5 SHA1 SHA512 SSDEEP

        iconcache_idx.db

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\iconcache_idx.db
        • Size 7KB
        • SHA256 fc92671a3f41f3db17c84cfea9ffb78cd7d39bc5b7dc0b5109833d686f28ca9d
        • MD5 SHA1 SHA512 SSDEEP

        thumbcache_16.db

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\thumbcache_16.db
        • Size 1024KB
        • SHA256 0ae20207259bc0ffcf68260fed844944bd47e07fa405a77dc5c8762cef734b1d
        • MD5 SHA1 SHA512 SSDEEP

        thumbcache_256.db

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\thumbcache_256.db
        • Size 1024KB
        • SHA256 6ba5e1679843c3843f7ad66ff95993f11229dbd257e75aaa2b4ab984c8382b64
        • 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 0ee876910cc6665097f66f1f49f09b4de336967279a2f557099def6d971bcc1f
        • MD5 SHA1 SHA512 SSDEEP

        microsoft.windows[1].xml

        • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Cortana_cw5n1h2txyewy\AC\Microsoft\Internet Explorer\DOMStore\Q7R4L46I\microsoft.windows[1].xml
        • Size 97B
        • SHA256 25bc6b4c838de26effb79b0b84ec497fe6be27ddfb085c6d16ce687b94a84c2c
        • MD5 SHA1 SHA512

        9D66F3A49D66F3A4.bmp

        • Path C:\Users\Admin\AppData\Roaming\9D66F3A49D66F3A4.bmp
        • Size 2.6MB
        • SHA256 4aa6cdb9ce95410f85a05b21967d224cfd49cf8c7fa18d9998304a16d4e4b5d8
        • MD5 SHA1 SHA512 SSDEEP

        memory/1144-2-0x0000000000400000-0x000000000062A000-memory.dmp

        memory/1144-9-0x0000000000400000-0x000000000062A000-memory.dmp

        memory/1144-14-0x0000000002420000-0x0000000002454000-memory.dmp

        memory/1144-8-0x0000000002420000-0x0000000002454000-memory.dmp

        memory/1144-5-0x0000000000400000-0x000000000062A000-memory.dmp

        memory/1144-1-0x0000000000400000-0x000000000062A000-memory.dmp

        memory/1144-0-0x0000000000400000-0x000000000062A000-memory.dmp

        memory/4496-44-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-52-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-21-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-22-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-23-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-24-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-27-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-28-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-29-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-30-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-31-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-32-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-33-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-34-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-35-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-36-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-37-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-38-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-39-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-40-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-41-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-42-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-43-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-19-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-45-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-46-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-47-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-48-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-49-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-50-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-51-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-20-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-53-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-54-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-55-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-56-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-57-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-58-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-59-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-60-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-61-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-62-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-63-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-64-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-65-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-66-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-67-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-68-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-69-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-70-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-71-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-72-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-73-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-74-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-75-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-18-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-13-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-11-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-10-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-76-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-77-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-78-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/4496-79-0x0000000000400000-0x0000000000608000-memory.dmp