Overview

overview

10

Static

static

0dbbb09ec5...d6.exe

windows7_x64

10

0dbbb09ec5...d6.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    0dbbb09ec558a7e92a9ad24cce946e1737bc944992dbdb377fc7af18008bc9d6

  • Size

    219KB

  • Sample

    220219-j6xvwshgf7

  • MD5

    c4d162f04eb0464adc841390f42431ed

  • SHA1

    a25bcbafb2b70ab2b214a7fe0446abee02602045

  • SHA256

    0dbbb09ec558a7e92a9ad24cce946e1737bc944992dbdb377fc7af18008bc9d6

  • SHA512

    07fd20fa8f27e2d236333dbec7bf4318000207f321544944d9f4c83a808b475d7904ad411f94cb8c1407c95ea0a49a72c784991ef7b4a158c5554e87e07a91af

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

      0dbbb09ec558a7e92a9ad24cce946e1737bc944992dbdb377fc7af18008bc9d6

    • Size

      219KB

    • MD5

      c4d162f04eb0464adc841390f42431ed

    • SHA1

      a25bcbafb2b70ab2b214a7fe0446abee02602045

    • SHA256

      0dbbb09ec558a7e92a9ad24cce946e1737bc944992dbdb377fc7af18008bc9d6

    • SHA512

      07fd20fa8f27e2d236333dbec7bf4318000207f321544944d9f4c83a808b475d7904ad411f94cb8c1407c95ea0a49a72c784991ef7b4a158c5554e87e07a91af

    Score
    10/10
    ryukransomware

    • 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.

    • 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