Overview

overview

10

Static

static

3d240e8f42...89.exe

windows7_x64

10

3d240e8f42...89.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689

  • Size

    191KB

  • Sample

    220220-j5ww7sbecj

  • MD5

    aa8d5eec0c68de288fdd55a128e77e95

  • SHA1

    496e01324adba5e4db50cb723cc0f4593dfdf6b3

  • SHA256

    3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689

  • SHA512

    86700f73ac9da32ff9c5e6ea249ff0dd362a11ca3fd5dd4730c3cc5ccbdc2893a288e4ad26c89dd30e33e841c43cd4cb55ee989efa9e2ecad947ab1a198a7fe2

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

      3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689

    • Size

      191KB

    • MD5

      aa8d5eec0c68de288fdd55a128e77e95

    • SHA1

      496e01324adba5e4db50cb723cc0f4593dfdf6b3

    • SHA256

      3d240e8f42c1ea380b06300235f77423f09bae5b81021150ad4e7aaaf18e8689

    • SHA512

      86700f73ac9da32ff9c5e6ea249ff0dd362a11ca3fd5dd4730c3cc5ccbdc2893a288e4ad26c89dd30e33e841c43cd4cb55ee989efa9e2ecad947ab1a198a7fe2

    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