Overview

overview

10

Static

static

487d4698c6...d4.exe

windows7_x64

10

487d4698c6...d4.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    487d4698c6c938ca3e9251827a5813ddd21e26584b3459d768e457ddd4e8c4d4

  • Size

    193KB

  • Sample

    220220-jljsjaabg8

  • MD5

    e197188193bc7e7a2049c8c966c2e148

  • SHA1

    8a12a2255be5b4d42c90c5d0b9f2d4797fa3cd69

  • SHA256

    487d4698c6c938ca3e9251827a5813ddd21e26584b3459d768e457ddd4e8c4d4

  • SHA512

    edf405353d643eeb038b4040b1bd1f5558ec6fded6c7ab516497d6f62c1f48d0c2d948d5bb8d6cc3ec87fd7f4f2ce883879ea20bcf86b69721629ae67a3323d8

Score
10/10
ryukransomware

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\RyukReadMe.html

Family

ryuk

Ransom Note
<html><body><p style="font-weight:bold;font-size:125%;top:0;left:0;"> [email protected] <br> </p><p style="position:absolute;bottom:0;right:1%;font-weight:bold;font-size:170%">balance of shadow universe</p><div style="font-size: 550%;font-weight:bold;width:50%;height:50%;overflow:auto;margin:auto;position:absolute;top:35%;left:40%;">Ryuk</div></body></html�������������������������������������������������������������������������������������������������������������������������������������������������������

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\RyukReadMe.html

Family

ryuk

Ransom Note
[email protected] balance of shadow universe Ryuk

Targets

    • Target

      487d4698c6c938ca3e9251827a5813ddd21e26584b3459d768e457ddd4e8c4d4

    • Size

      193KB

    • MD5

      e197188193bc7e7a2049c8c966c2e148

    • SHA1

      8a12a2255be5b4d42c90c5d0b9f2d4797fa3cd69

    • SHA256

      487d4698c6c938ca3e9251827a5813ddd21e26584b3459d768e457ddd4e8c4d4

    • SHA512

      edf405353d643eeb038b4040b1bd1f5558ec6fded6c7ab516497d6f62c1f48d0c2d948d5bb8d6cc3ec87fd7f4f2ce883879ea20bcf86b69721629ae67a3323d8

    Score
    10/10
    ryukransomware

    • Ryuk

      Ransomware distributed via existing botnets, often Trickbot or Emotet.

      ransomwareryuk

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks