Overview

overview

10

Static

static

0bbcd5a1b2...c5.exe

windows7_x64

10

0bbcd5a1b2...c5.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    0bbcd5a1b2752b281cb4acefcf62343d6a9a923ac114da6e68affd01da000ac5

  • Size

    170KB

  • Sample

    220219-kaqmdaaghr

  • MD5

    0af3265285656fe17d144bb1080e4dc2

  • SHA1

    e2d30dde5224a79963037e6f654b1e77f1ed5f4c

  • SHA256

    0bbcd5a1b2752b281cb4acefcf62343d6a9a923ac114da6e68affd01da000ac5

  • SHA512

    46cf7d96769a092c702b8573c5a5d2770ac7577dcada868bb204727d0dbb42dd0eb0fc895e985b3a2e87e09984926331cd856728ea18297ee0d92d3815192932

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

      0bbcd5a1b2752b281cb4acefcf62343d6a9a923ac114da6e68affd01da000ac5

    • Size

      170KB

    • MD5

      0af3265285656fe17d144bb1080e4dc2

    • SHA1

      e2d30dde5224a79963037e6f654b1e77f1ed5f4c

    • SHA256

      0bbcd5a1b2752b281cb4acefcf62343d6a9a923ac114da6e68affd01da000ac5

    • SHA512

      46cf7d96769a092c702b8573c5a5d2770ac7577dcada868bb204727d0dbb42dd0eb0fc895e985b3a2e87e09984926331cd856728ea18297ee0d92d3815192932

    Score
    10/10
    ryukpersistenceransomware

    • Ryuk

      Ransomware distributed via existing botnets, often Trickbot or Emotet.

      ransomwareryuk

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • 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

3
T1012

System Information Discovery

4
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks