Overview

overview

10

Static

static

8ec0c670fa...3c.exe

windows7_x64

10

8ec0c670fa...3c.exe

windows10-2004_x64

7

Sharing

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General

  • Target

    8ec0c670fa446d9f59372fccb1ad2438a7b8ecac9f91ac2fc6483557c854d93c

  • Size

    188KB

  • Sample

    220220-fa5zvagge3

  • MD5

    63a46709a4e2eee46c3f9d2ff65a2c88

  • SHA1

    f2cacaabcea399c95c6ee8bdfdf5b8ee6d7644b6

  • SHA256

    8ec0c670fa446d9f59372fccb1ad2438a7b8ecac9f91ac2fc6483557c854d93c

  • SHA512

    2396c89a15b2e87952641dff7aa8644b6b70543697d3fbe4ec945e47028277c783661794ea0eef63ab985765a66b47464b51154fdff7b6ac44ffa33899308441

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

      8ec0c670fa446d9f59372fccb1ad2438a7b8ecac9f91ac2fc6483557c854d93c

    • Size

      188KB

    • MD5

      63a46709a4e2eee46c3f9d2ff65a2c88

    • SHA1

      f2cacaabcea399c95c6ee8bdfdf5b8ee6d7644b6

    • SHA256

      8ec0c670fa446d9f59372fccb1ad2438a7b8ecac9f91ac2fc6483557c854d93c

    • SHA512

      2396c89a15b2e87952641dff7aa8644b6b70543697d3fbe4ec945e47028277c783661794ea0eef63ab985765a66b47464b51154fdff7b6ac44ffa33899308441

    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

2
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks