Overview

overview

10

Static

static

aebfcf161a...5c.exe

windows7_x64

10

aebfcf161a...5c.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    aebfcf161ae2086459aa9ca99cbab2c2118a6d617fe645d65c148c5d3436de5c

  • Size

    191KB

  • Sample

    220220-dtpqvsgbe9

  • MD5

    856961d44f9e6775ad573cf58c438a2a

  • SHA1

    818bbf02fd1bd0eda9ee62c73b63266bf859e699

  • SHA256

    aebfcf161ae2086459aa9ca99cbab2c2118a6d617fe645d65c148c5d3436de5c

  • SHA512

    d6bfb664f6a1496df539c86a9b2b2b1bf3d43e252109af2f3e9dc40b566804e0b6d8ef051f953ea998391664ce8db8ea2dc5b2b4199493082e473c9b196ebc0e

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

      aebfcf161ae2086459aa9ca99cbab2c2118a6d617fe645d65c148c5d3436de5c

    • Size

      191KB

    • MD5

      856961d44f9e6775ad573cf58c438a2a

    • SHA1

      818bbf02fd1bd0eda9ee62c73b63266bf859e699

    • SHA256

      aebfcf161ae2086459aa9ca99cbab2c2118a6d617fe645d65c148c5d3436de5c

    • SHA512

      d6bfb664f6a1496df539c86a9b2b2b1bf3d43e252109af2f3e9dc40b566804e0b6d8ef051f953ea998391664ce8db8ea2dc5b2b4199493082e473c9b196ebc0e

    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