Overview

overview

10

Static

static

3ed0839999...cc.exe

windows7_x64

10

3ed0839999...cc.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    162s
  • max time network
    52s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    20-02-2022 08:10

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General

  • Target

    3ed083999930a1eab5857dc0e0101fd5777a737029eabe6eb481052f78c53ccc.exe

  • Size

    140KB

  • MD5

    d27a71b6b5bb69501ac88ab920878446

  • SHA1

    0d06f9eb99239d6637936dd0637e17ea537f55cf

  • SHA256

    3ed083999930a1eab5857dc0e0101fd5777a737029eabe6eb481052f78c53ccc

  • SHA512

    037f7b34841dd924574089bede0acfc8ae374a612cc4151180a7aee684581b1896562956e950c0aed27355062ad27318557f8091fcf1afe7440544094fb58810

Score
10/10
ryukpersistenceransomware

Malware Config

Extracted

Path

C:\RyukReadMe.txt

Family

ryuk

Ransom Note
Your network has been penetrated. All files on each host in the network have been encrypted with a strong algorithm. Backups were either encrypted or deleted or backup disks were formatted. Shadow copies also removed, so F8 or any other methods may damage encrypted data but not recover. We exclusively have decryption software for your situation No decryption software is available in the public. DO NOT RESET OR SHUTDOWN - files may be damaged. DO NOT RENAME OR MOVE the encrypted and readme files. DO NOT DELETE readme files. This may lead to the impossibility of recovery of the certain files. To get info (decrypt your files) contact us at [email protected] or [email protected] BTC wallet: 14hVKm7Ft2rxDBFTNkkRC3kGstMGp2A4hk Ryuk No system is safe
Wallets

14hVKm7Ft2rxDBFTNkkRC3kGstMGp2A4hk

Signatures

  • Ryuk

    Ransomware distributed via existing botnets, often Trickbot or Emotet.

    ransomwareryuk
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Windows\system32\Dwm.exe
    "C:\Windows\system32\Dwm.exe"
    1⤵
      PID:1392
    • C:\Users\Admin\AppData\Local\Temp\3ed083999930a1eab5857dc0e0101fd5777a737029eabe6eb481052f78c53ccc.exe
      "C:\Users\Admin\AppData\Local\Temp\3ed083999930a1eab5857dc0e0101fd5777a737029eabe6eb481052f78c53ccc.exe"
      1⤵
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:596
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C REG ADD "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "svchos" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\3ed083999930a1eab5857dc0e0101fd5777a737029eabe6eb481052f78c53ccc.exe" /f /reg:64
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:880
        • C:\Windows\SysWOW64\reg.exe
          REG ADD "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "svchos" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\3ed083999930a1eab5857dc0e0101fd5777a737029eabe6eb481052f78c53ccc.exe" /f /reg:64
          3⤵
          • Adds Run key to start application
          PID:1400
    • C:\Windows\system32\taskhost.exe
      "taskhost.exe"
      1⤵
        PID:1296

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • memory/596-54-0x0000000075F21000-0x0000000075F23000-memory.dmp

        Filesize

        8KB

        Download

      • memory/596-55-0x0000000030000000-0x0000000030382000-memory.dmp

        Filesize

        3.5MB

        Download

      • memory/1296-56-0x0000000030000000-0x0000000030382000-memory.dmp

        Filesize

        3.5MB

        Download