Analysis

  • max time kernel
    1192s
  • max time network
    1073s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    14/04/2024, 11:47

General

  • Target
    ce7104bc850c5a07a867cadb8f4bfa59.exe
  • Size 1.1MB
  • Sample240414-nx1mmsbc21
  • SHA256 cd2bc2ceb0e1b7d7c31f7a2aec7e838d3a90767ed3d02e1720170875e4a23cb6
  • 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
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 3 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 32 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 45 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 6 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\ce7104bc850c5a07a867cadb8f4bfa59.exe
    "C:\Users\Admin\AppData\Local\Temp\ce7104bc850c5a07a867cadb8f4bfa59.exe"
    1⤵
    • 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:2088
    • C:\Windows\system32\vssadmin.exe
      C:\Windows\system32\vssadmin.exe List Shadows
      2⤵
      • Interacts with shadow copies
      PID:2212
    • C:\Windows\system32\vssadmin.exe
      C:\Windows\system32\vssadmin.exe Delete Shadows /All /Quiet
      2⤵
      • Interacts with shadow copies
      PID:4384
    • C:\Windows\system32\vssadmin.exe
      C:\Windows\system32\vssadmin.exe List Shadows
      2⤵
      • Interacts with shadow copies
      PID:2832
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4048
  • 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:3412
  • 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:1608

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        xfs

        • Path C:\ProgramData\System32\xfs
        • Size 188KB
        • SHA256 af5e401f5e3f6a067174972dda24ef0c21276c5f6d66cb0d5a29ccc98b7e3f1a
        • MD5 SHA1 SHA512 SSDEEP

        iconcache_48.db

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\iconcache_48.db
        • Size 1024KB
        • SHA256 e373e99d52bfab57972c46968612be66809782a05019fd5673685b33cf796204
        • MD5 SHA1 SHA512 SSDEEP

        iconcache_idx.db

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\iconcache_idx.db
        • Size 7KB
        • SHA256 9cf0b2e5798e86716f3ca950e9f661a2ecdd3d210b1eab4d31de6bdcd224ead8
        • MD5 SHA1 SHA512 SSDEEP

        thumbcache_16.db

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\thumbcache_16.db
        • Size 1024KB
        • SHA256 58d96a1665603ea8aaa0b7833b99709c5e117602b2bbb9fe49cd86f3c98977a3
        • MD5 SHA1 SHA512 SSDEEP

        thumbcache_256.db

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\thumbcache_256.db
        • Size 1024KB
        • SHA256 4d2d7f821e7cdd4b72aae8e7ebc295550a34e9847e098ffbf8d91432b9e6a13d
        • 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 fe87a65850d9a20cdc91b28b9a87a1e38bd4125a5ed44f3f62a11b56fd9c0ccd
        • MD5 SHA1 SHA512 SSDEEP

        thumbcache_idx.db

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\thumbcache_idx.db
        • Size 7KB
        • SHA256 a4acb51cbbf28669a2ea7be4dd7b9e80988acb23de3208991f9dccd5464ebe6b
        • MD5 SHA1 SHA512 SSDEEP

        microsoft.windows[1].xml

        • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Cortana_cw5n1h2txyewy\AC\Microsoft\Internet Explorer\DOMStore\4NZ8O90T\microsoft.windows[1].xml
        • Size 97B
        • SHA256 500042553b63cf5a97ac73e3b3f668d07aa0f30857ba170a2cad07e6b4bff79d
        • MD5 SHA1 SHA512

        A254C801A254C801.bmp

        • Path C:\Users\Admin\AppData\Roaming\A254C801A254C801.bmp
        • Size 2.6MB
        • SHA256 4aa6cdb9ce95410f85a05b21967d224cfd49cf8c7fa18d9998304a16d4e4b5d8
        • MD5 SHA1 SHA512 SSDEEP

        memory/2088-39-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-44-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-11-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-12-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-13-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-14-0x00000000021F0000-0x00000000022C5000-memory.dmp

        memory/2088-15-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-16-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-17-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-18-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-19-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-22-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-23-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-24-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-25-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-26-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-27-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-28-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-29-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-30-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-31-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-32-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-33-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-34-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-35-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-36-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-37-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-38-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-5-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-40-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-41-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-42-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-43-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-7-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-45-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-46-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-47-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-48-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-49-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-50-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-51-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-52-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-53-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-54-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-55-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-56-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-57-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-58-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-59-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-60-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-61-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-62-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-63-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-64-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-65-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-66-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-67-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-4-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-3-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-2-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-1-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-0-0x00000000021F0000-0x00000000022C5000-memory.dmp

        memory/2088-68-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-69-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-70-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-71-0x0000000000400000-0x0000000000608000-memory.dmp

        memory/2088-72-0x0000000000400000-0x0000000000608000-memory.dmp