Overview

overview

10

Static

static

81c4866813...13.exe

windows7_x64

10

81c4866813...13.exe

windows10-2004_x64

3

Sharing

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General

  • Target

    81c4866813a273f4c5e859f241ec28c973c974651a948553c6439bcd0a571013

  • Size

    192KB

  • Sample

    220220-fvsj9aaafp

  • MD5

    567cf2eec7a754e6ac98f0f738418caa

  • SHA1

    70a1b782865156a338894e9466f951143927703f

  • SHA256

    81c4866813a273f4c5e859f241ec28c973c974651a948553c6439bcd0a571013

  • SHA512

    867b233c1a83ec8c46479b30e3dc37f5c306d33ec2804622e43be7cc9f45afa4a2873e4eff72f36353db68a3c12281dd11f2030b36b421fef145aa71136a0b88

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> [email protected] </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] [email protected] balance of shadow universe Ryuk

Targets

    • Target

      81c4866813a273f4c5e859f241ec28c973c974651a948553c6439bcd0a571013

    • Size

      192KB

    • MD5

      567cf2eec7a754e6ac98f0f738418caa

    • SHA1

      70a1b782865156a338894e9466f951143927703f

    • SHA256

      81c4866813a273f4c5e859f241ec28c973c974651a948553c6439bcd0a571013

    • SHA512

      867b233c1a83ec8c46479b30e3dc37f5c306d33ec2804622e43be7cc9f45afa4a2873e4eff72f36353db68a3c12281dd11f2030b36b421fef145aa71136a0b88

    Score
    10/10
    ryukransomware

    • Ryuk

      Ransomware distributed via existing botnets, often Trickbot or Emotet.

      ransomwareryuk

    • Executes dropped EXE

    • Loads dropped DLL

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks