Overview

overview

10

Static

static

97f96adce3...a5.exe

windows7_x64

10

97f96adce3...a5.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    97f96adce3c5f14cc0c061abe98555bc9ac042100af5db0226aa9e10f34430a5

  • Size

    384KB

  • Sample

    220220-ev2mgshfdk

  • MD5

    002e3ea0f8a404171a0995a8cbce2588

  • SHA1

    fbf489d4114a585fcb4af427f8c44cb661de0f74

  • SHA256

    97f96adce3c5f14cc0c061abe98555bc9ac042100af5db0226aa9e10f34430a5

  • SHA512

    dc8551f5c4ca02b156012852d578ffc73c2f66aab329cd5ab4c8857f666d00092b37d29bcc2c83555c97c56dea25d46b4546a91afba9e54e3446badcc8d3a9ea

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

      97f96adce3c5f14cc0c061abe98555bc9ac042100af5db0226aa9e10f34430a5

    • Size

      384KB

    • MD5

      002e3ea0f8a404171a0995a8cbce2588

    • SHA1

      fbf489d4114a585fcb4af427f8c44cb661de0f74

    • SHA256

      97f96adce3c5f14cc0c061abe98555bc9ac042100af5db0226aa9e10f34430a5

    • SHA512

      dc8551f5c4ca02b156012852d578ffc73c2f66aab329cd5ab4c8857f666d00092b37d29bcc2c83555c97c56dea25d46b4546a91afba9e54e3446badcc8d3a9ea

    Score
    10/10
    ryukpersistenceransomware

    • Ryuk

      Ransomware distributed via existing botnets, often Trickbot or Emotet.

      ransomwareryuk

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Executes dropped EXE

    • Checks computer location settings

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

    • Deletes itself

    • Loads dropped DLL

    • 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