Overview

overview

10

Static

static

fd28106da7...84.exe

windows7_x64

10

fd28106da7...84.exe

windows10-2004_x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    fd28106da79d2948865ba105fe5d342515c49a6fb216028fa52ac7d058f14684

  • Size

    170KB

  • Sample

    220219-3zyy6affam

  • MD5

    b87e9dd18a5533a09d3e48a7a1efbcf6

  • SHA1

    f041500d895259431f30907f711c7208ebde2a19

  • SHA256

    fd28106da79d2948865ba105fe5d342515c49a6fb216028fa52ac7d058f14684

  • SHA512

    29c6c8690bee5db3891ae083ae99de451a589546cc698869eccb92f30a50c585e0e07e54d9387893e203b74d2ec043afb84cf67ff74bbac8874c4d6ae575df90

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

      fd28106da79d2948865ba105fe5d342515c49a6fb216028fa52ac7d058f14684

    • Size

      170KB

    • MD5

      b87e9dd18a5533a09d3e48a7a1efbcf6

    • SHA1

      f041500d895259431f30907f711c7208ebde2a19

    • SHA256

      fd28106da79d2948865ba105fe5d342515c49a6fb216028fa52ac7d058f14684

    • SHA512

      29c6c8690bee5db3891ae083ae99de451a589546cc698869eccb92f30a50c585e0e07e54d9387893e203b74d2ec043afb84cf67ff74bbac8874c4d6ae575df90

    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