Overview

overview

10

Static

static

0d9c922bee...f4.exe

windows7_x64

10

0d9c922bee...f4.exe

windows10-2004_x64

7

Analysis

  • max time kernel
    175s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    19-02-2022 08:17

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General

  • Target

    0d9c922bee2527bad6511502a7bbf9b5f72a07311447d7c010d3d9c2ef3828f4.exe

  • Size

    170KB

  • MD5

    2fa75d30fbae89cbfef6bef7640319cc

  • SHA1

    a6e87d2a36c8c22d9501344fe5444622e79d39bf

  • SHA256

    0d9c922bee2527bad6511502a7bbf9b5f72a07311447d7c010d3d9c2ef3828f4

  • SHA512

    65d80136764a14358d421a3aba12e6f9284a084c0fc1ac362b402b7ab613826883a6e44360ebbfbf620fe2f1e30e40950e0044f95b69e88dabbb4c4f3eaae9af

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\taskhost.exe
    "taskhost.exe"
    1⤵
    • Drops file in Program Files directory
    PID:1140
  • C:\Windows\system32\Dwm.exe
    "C:\Windows\system32\Dwm.exe"
    1⤵
      PID:1252
    • C:\Users\Admin\AppData\Local\Temp\0d9c922bee2527bad6511502a7bbf9b5f72a07311447d7c010d3d9c2ef3828f4.exe
      "C:\Users\Admin\AppData\Local\Temp\0d9c922bee2527bad6511502a7bbf9b5f72a07311447d7c010d3d9c2ef3828f4.exe"
      1⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1892
      • 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\0d9c922bee2527bad6511502a7bbf9b5f72a07311447d7c010d3d9c2ef3828f4.exe" /f
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:320
        • 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\0d9c922bee2527bad6511502a7bbf9b5f72a07311447d7c010d3d9c2ef3828f4.exe" /f
          3⤵
          • Adds Run key to start application
          PID:240

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/1140-55-0x000000013F5A0000-0x000000013F92E000-memory.dmp

      Filesize

      3.6MB

      Download

    • memory/1140-57-0x000000013F5A0000-0x000000013F92E000-memory.dmp

      Filesize

      3.6MB

      Download

    • memory/1252-58-0x000000013F5A0000-0x000000013F92E000-memory.dmp

      Filesize

      3.6MB

      Download

    • memory/1892-54-0x000007FEFC511000-0x000007FEFC513000-memory.dmp

      Filesize

      8KB

      Download