Overview

overview

10

Static

static

0280ccc8d6...a4.exe

windows7_x64

10

0280ccc8d6...a4.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    164s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    19/02/2022, 08:52

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General

  • Target

    0280ccc8d6dbb14d79adf375fa386a534cd74b40c684ed47db0d2e4f659e4da4.exe

  • Size

    170KB

  • MD5

    b9d73fa0261bb6adaa2cb22f348518f0

  • SHA1

    d52e7a4cb8ccad688572a8e5d38b43a0e38e3bc3

  • SHA256

    0280ccc8d6dbb14d79adf375fa386a534cd74b40c684ed47db0d2e4f659e4da4

  • SHA512

    58e3f79e6de19df40b0992aa108e4022979e1c7b2be26e3dced26261c6ea800b89f1c00ac6e67340b4092cf3ada4a6c22c2aeb69eddba7838339a8c4e3799ff4

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:1252
  • C:\Windows\system32\Dwm.exe
    "C:\Windows\system32\Dwm.exe"
    1⤵
      PID:1360
    • C:\Users\Admin\AppData\Local\Temp\0280ccc8d6dbb14d79adf375fa386a534cd74b40c684ed47db0d2e4f659e4da4.exe
      "C:\Users\Admin\AppData\Local\Temp\0280ccc8d6dbb14d79adf375fa386a534cd74b40c684ed47db0d2e4f659e4da4.exe"
      1⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1752
      • 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\0280ccc8d6dbb14d79adf375fa386a534cd74b40c684ed47db0d2e4f659e4da4.exe" /f
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1636
        • 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\0280ccc8d6dbb14d79adf375fa386a534cd74b40c684ed47db0d2e4f659e4da4.exe" /f
          3⤵
          • Adds Run key to start application
          PID:588

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • memory/1252-56-0x000000013FDB0000-0x000000014013E000-memory.dmp

            Filesize

            3.6MB

            Download

          • memory/1252-58-0x000000013FDB0000-0x000000014013E000-memory.dmp

            Filesize

            3.6MB

            Download

          • memory/1752-55-0x000007FEFC2A1000-0x000007FEFC2A3000-memory.dmp

            Filesize

            8KB

            Download