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Analysis

  • max time kernel
    169s
  • max time network
    173s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/11/2022, 18:00

General

  • Target

    primedice.exe

  • Size

    1.6MB

  • MD5

    afb4e06fdf04d43f1331695e5692f659

  • SHA1

    2bb3cbe20610041edd5dd6ae02fc1a60f990d18c

  • SHA256

    86b4e3e757c3c876813a5fba306a9e39986d2e542e2c3056aeb7a665bb2a1d4f

  • SHA512

    145d5ac1956ff08c5bc33086e0ebb5c25707a1b8e57d28ce0f77f5d31b040fc0771c1c129581e47809d66e978a9afab8d64e655b472b33e8c456c728a278641f

  • SSDEEP

    12288:fh/2h8jPhUexyAAn1L7Om7mii8073siQHyg5PnKWeD3rA0y:Z/0Q5UL1LTKQ0bYRcbrA

Malware Config

Signatures

  • Imminent RAT

    Remote-access trojan based on Imminent Monitor remote admin software.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops desktop.ini file(s) 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

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

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\primedice.exe
    "C:\Users\Admin\AppData\Local\Temp\primedice.exe"
    1⤵
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    • Suspicious use of SetThreadContext
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5080
    • C:\Users\Admin\AppData\Local\Temp\primedice.exe
      "C:\Users\Admin\AppData\Local\Temp\primedice.exe"
      2⤵
      • Checks computer location settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4896
      • C:\Windows\SysWOW64\Taskmgr.exe
        "C:\Windows\System32\Taskmgr.exe"
        3⤵
        • Checks SCSI registry key(s)
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:1820

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/4896-134-0x0000000000400000-0x000000000044A000-memory.dmp

    Filesize

    296KB

  • memory/4896-135-0x0000000074EC0000-0x0000000075471000-memory.dmp

    Filesize

    5.7MB

  • memory/4896-138-0x0000000074EC0000-0x0000000075471000-memory.dmp

    Filesize

    5.7MB

  • memory/5080-132-0x0000000074EC0000-0x0000000075471000-memory.dmp

    Filesize

    5.7MB

  • memory/5080-137-0x0000000074EC0000-0x0000000075471000-memory.dmp

    Filesize

    5.7MB