Overview

overview

10

Static

static

b3f9ac2849...3a.exe

windows7_x64

10

b3f9ac2849...3a.exe

windows10-2004_x64

1

Sharing

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General

  • Target

    b3f9ac2849fcbafb5abcede2fff0d05754d4b08b20b102af9f14849c2c10e63a

  • Size

    207KB

  • Sample

    220220-dj2yfagaf4

  • MD5

    f2f7bef5ff555a8d94876c33903e3676

  • SHA1

    d54850d80c6ada0c22881048640f911b79ea6d35

  • SHA256

    b3f9ac2849fcbafb5abcede2fff0d05754d4b08b20b102af9f14849c2c10e63a

  • SHA512

    97d2eedba86483e60073a42fcefa1a6b06abf37a425dd4c2a03e3d11523e213340fbfb2bcc6cd9efd97c5d5cdcbc71b411aeb486df456433e2e5c0e5b1d2efed

Score
10/10
ryukransomware

Malware Config

Extracted

Path

C:\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:\RyukReadMe.html

Family

ryuk

Ransom Note
[email protected] [email protected] balance of shadow universe Ryuk

Targets

    • Target

      b3f9ac2849fcbafb5abcede2fff0d05754d4b08b20b102af9f14849c2c10e63a

    • Size

      207KB

    • MD5

      f2f7bef5ff555a8d94876c33903e3676

    • SHA1

      d54850d80c6ada0c22881048640f911b79ea6d35

    • SHA256

      b3f9ac2849fcbafb5abcede2fff0d05754d4b08b20b102af9f14849c2c10e63a

    • SHA512

      97d2eedba86483e60073a42fcefa1a6b06abf37a425dd4c2a03e3d11523e213340fbfb2bcc6cd9efd97c5d5cdcbc71b411aeb486df456433e2e5c0e5b1d2efed

    Score
    10/10
    ryukransomware

    • Ryuk

      Ransomware distributed via existing botnets, often Trickbot or Emotet.

      ransomwareryuk

    • Drops desktop.ini file(s)

    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