Overview

overview

10

Static

static

0eb86390d1...d0.exe

windows7_x64

10

0eb86390d1...d0.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    162s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    19-02-2022 08:15

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General

  • Target

    0eb86390d13f331d7fd777acd750a759e447c907e38653adb6508c12c41f03d0.exe

  • Size

    170KB

  • MD5

    e83e446765df038755ff52cf5d311b6c

  • SHA1

    79f3c9691cd5d68ad289ba6a0c17e1a587d5c48b

  • SHA256

    0eb86390d13f331d7fd777acd750a759e447c907e38653adb6508c12c41f03d0

  • SHA512

    f6bbb71e53ac8e61fff0cbb2ab4ab25b40d29f5a537379eb8339f552eac68b7237cfd2dcb77783d2faa6aa582cb70c3ce4703a7ed9ed0dacdf413c1d60b1c63e

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 9 IoCs

Processes

  • C:\Windows\system32\Dwm.exe
    "C:\Windows\system32\Dwm.exe"
    1⤵
      PID:1232
    • C:\Windows\system32\taskhost.exe
      "taskhost.exe"
      1⤵
      • Drops file in Program Files directory
      PID:1124
    • C:\Users\Admin\AppData\Local\Temp\0eb86390d13f331d7fd777acd750a759e447c907e38653adb6508c12c41f03d0.exe
      "C:\Users\Admin\AppData\Local\Temp\0eb86390d13f331d7fd777acd750a759e447c907e38653adb6508c12c41f03d0.exe"
      1⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1772
      • C:\Windows\System32\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\0eb86390d13f331d7fd777acd750a759e447c907e38653adb6508c12c41f03d0.exe" /f
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1548
        • C:\Windows\system32\reg.exe
          REG ADD "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "svchos" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\0eb86390d13f331d7fd777acd750a759e447c907e38653adb6508c12c41f03d0.exe" /f
          3⤵
          • Adds Run key to start application
          PID:860

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1124-56-0x000000013FB40000-0x000000013FECE000-memory.dmp

      Filesize

      3.6MB

      Download

    • memory/1124-58-0x000000013FB40000-0x000000013FECE000-memory.dmp

      Filesize

      3.6MB

      Download

    • memory/1232-59-0x000000013FB40000-0x000000013FECE000-memory.dmp

      Filesize

      3.6MB

      Download

    • memory/1772-55-0x000007FEFBC31000-0x000007FEFBC33000-memory.dmp

      Filesize

      8KB

      Download