Analysis

  • max time kernel
    142s
  • max time network
    143s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    27/01/2021, 14:25

General

  • Target
    BL Draft Copy #747470.exe
  • Size 858KB
  • Sample210127-v4srly5eq6
  • SHA256 4bc04aa1102d1ddab6de06654183987351f5215c5cf3fe6f9cb13b3efcd99656
  • MD5 SHA1 SHA512
Score
5/10

Malware Config

Signatures

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\BL Draft Copy #747470.exe
    "C:\Users\Admin\AppData\Local\Temp\BL Draft Copy #747470.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4760
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\myAHtoyS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp58B0.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:580
    • C:\Users\Admin\AppData\Local\Temp\BL Draft Copy #747470.exe
      "C:\Users\Admin\AppData\Local\Temp\BL Draft Copy #747470.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1004

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1004-24-0x0000000005FD0000-0x0000000005FD1000-memory.dmp

        memory/1004-23-0x0000000005F40000-0x0000000005F41000-memory.dmp

        memory/1004-22-0x0000000005330000-0x0000000005331000-memory.dmp

        memory/1004-17-0x0000000073150000-0x000000007383E000-memory.dmp

        memory/1004-14-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/4760-7-0x0000000005960000-0x0000000005961000-memory.dmp

        memory/4760-11-0x00000000064F0000-0x000000000655B000-memory.dmp

        memory/4760-10-0x0000000005950000-0x0000000005953000-memory.dmp

        memory/4760-9-0x00000000058C0000-0x00000000058C1000-memory.dmp

        memory/4760-8-0x0000000005810000-0x0000000005811000-memory.dmp

        memory/4760-2-0x0000000073150000-0x000000007383E000-memory.dmp

        memory/4760-6-0x0000000005820000-0x0000000005821000-memory.dmp

        memory/4760-5-0x0000000005C80000-0x0000000005C81000-memory.dmp

        memory/4760-3-0x0000000000F10000-0x0000000000F11000-memory.dmp