Overview

overview

10

Static

static

aa356e1d44...f6.exe

windows7_x64

10

aa356e1d44...f6.exe

windows10-2004_x64

7

Sharing

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General

  • Target

    aa356e1d445cca768a71f037d6a0111e613213bf2fd67fffdeae346001143bf6

  • Size

    170KB

  • Sample

    220220-d2ntjagcd2

  • MD5

    0e53108935aa122b8faeda0de6fae8bd

  • SHA1

    fd7491b116e3695b832c171b6c003773fa95342b

  • SHA256

    aa356e1d445cca768a71f037d6a0111e613213bf2fd67fffdeae346001143bf6

  • SHA512

    df74ad57514cf8866a738f7ab3058a51f3ca7450bc63affc0ff05facc1e43e5d19dc1f23daa0ec7fc03312eacff2ff9e1233e6e420935365a260babc93d0d3d4

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

Targets

    • Target

      aa356e1d445cca768a71f037d6a0111e613213bf2fd67fffdeae346001143bf6

    • Size

      170KB

    • MD5

      0e53108935aa122b8faeda0de6fae8bd

    • SHA1

      fd7491b116e3695b832c171b6c003773fa95342b

    • SHA256

      aa356e1d445cca768a71f037d6a0111e613213bf2fd67fffdeae346001143bf6

    • SHA512

      df74ad57514cf8866a738f7ab3058a51f3ca7450bc63affc0ff05facc1e43e5d19dc1f23daa0ec7fc03312eacff2ff9e1233e6e420935365a260babc93d0d3d4

    Score
    10/10
    ryukpersistenceransomware

    • Ryuk

      Ransomware distributed via existing botnets, often Trickbot or Emotet.

      ransomwareryuk

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks