Overview

overview

10

Static

static

3012f47296...b4.exe

windows7_x64

10

3012f47296...b4.exe

windows10-2004_x64

7

Analysis

  • max time kernel
    186s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    20-02-2022 08:47

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General

  • Target

    3012f472969327d5f8c9dac63b8ea9c5cb0de002d16c120a6bba4685120f58b4.exe

  • Size

    171KB

  • MD5

    d348f536e214a47655af387408b4fca5

  • SHA1

    13f11e273f9a4a56557f03821c3bfd591cca6ebc

  • SHA256

    3012f472969327d5f8c9dac63b8ea9c5cb0de002d16c120a6bba4685120f58b4

  • SHA512

    ca47ea2acf9d2a14172c9eb640b0a3ad87da24aa071192756f09f138046e61f6ee66004cd938be84fee871b1068418537eb167fc6063a0e1f3d73af00d2b8d8e

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:1276
  • C:\Windows\system32\Dwm.exe
    "C:\Windows\system32\Dwm.exe"
    1⤵
      PID:1372
    • C:\Users\Admin\AppData\Local\Temp\3012f472969327d5f8c9dac63b8ea9c5cb0de002d16c120a6bba4685120f58b4.exe
      "C:\Users\Admin\AppData\Local\Temp\3012f472969327d5f8c9dac63b8ea9c5cb0de002d16c120a6bba4685120f58b4.exe"
      1⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1664
      • 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\3012f472969327d5f8c9dac63b8ea9c5cb0de002d16c120a6bba4685120f58b4.exe" /f
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1588
        • 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\3012f472969327d5f8c9dac63b8ea9c5cb0de002d16c120a6bba4685120f58b4.exe" /f
          3⤵
          • Adds Run key to start application
          PID:1424

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/1276-55-0x000000013FF00000-0x000000013FF35000-memory.dmp

      Filesize

      212KB

      Download

    • memory/1276-57-0x000000013FF00000-0x000000013FF35000-memory.dmp

      Filesize

      212KB

      Download

    • memory/1664-54-0x000007FEFBEE1000-0x000007FEFBEE3000-memory.dmp

      Filesize

      8KB

      Download