Overview

overview

10

Static

static

4b5b08346e...39.exe

windows7_x64

10

4b5b08346e...39.exe

windows10-2004_x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    4b5b08346e369b59cae2120fcdc16b720bf2f2ec74115045cfafc24eecccb539

  • Size

    188KB

  • Sample

    220220-jgx5csabe2

  • MD5

    d2d3d877e06b0181b67c6e610b40c44c

  • SHA1

    6a0dd2ab04d5b0b6869d5b7d9b4eb591087bace9

  • SHA256

    4b5b08346e369b59cae2120fcdc16b720bf2f2ec74115045cfafc24eecccb539

  • SHA512

    320cc4f1862425d706c4d369fa5f13a62cc9f3454dae91b239a28440c14dd92972b8d1cfa4fea699dc996e67c3a4db49b4c4ed6e63329492ee6cf8f4f7059cf0

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

      4b5b08346e369b59cae2120fcdc16b720bf2f2ec74115045cfafc24eecccb539

    • Size

      188KB

    • MD5

      d2d3d877e06b0181b67c6e610b40c44c

    • SHA1

      6a0dd2ab04d5b0b6869d5b7d9b4eb591087bace9

    • SHA256

      4b5b08346e369b59cae2120fcdc16b720bf2f2ec74115045cfafc24eecccb539

    • SHA512

      320cc4f1862425d706c4d369fa5f13a62cc9f3454dae91b239a28440c14dd92972b8d1cfa4fea699dc996e67c3a4db49b4c4ed6e63329492ee6cf8f4f7059cf0

    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