Overview

overview

10

Static

static

8

c7f8289950...28.dll

windows7_x64

10

c7f8289950...28.dll

windows10-2004_x64

5

Sharing

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General

  • Target

    c7f8289950b0d8aa97dceadf2a98aef51886710d56a5283b889c9ad191531028

  • Size

    130KB

  • Sample

    220220-cm2amsfff4

  • MD5

    1e2b8973130672a1e739b035d30155b0

  • SHA1

    b4f098806ac9060f0f4dd3d63e8d831c69be6c81

  • SHA256

    c7f8289950b0d8aa97dceadf2a98aef51886710d56a5283b889c9ad191531028

  • SHA512

    a4be4accd1f5a7ab4131b477f61565822f545cff1c89e6167de4f07fa7bb1a8204c87c7ad7a40c83ed54161f5f4e6853196bb843949222384efd561692e2c4be

Score
10/10
ryukdavediscoveryransomware

Malware Config

Extracted

Path

C:\$Recycle.Bin\RyukReadMe.html

Family

ryuk

Ransom Note
contact balance of shadow universe Ryuk $password = 'BVb1qR2'; $torlink = 'http://oc6mkf4efqrjp2ue6qp6vmz4ofyjmlo6dtqiklqb2q546bnqeu66tbyd.onion'; function info(){alert("INSTRUCTION:\r\n1. Download tor browser.\r\n2. Open link through tor browser: " + $torlink + "\r\n3. Fill the form, your password: "+ $password +"\r\nWe will contact you shortly.\r\nAlways send files for test decryption.");};
URLs

http://oc6mkf4efqrjp2ue6qp6vmz4ofyjmlo6dtqiklqb2q546bnqeu66tbyd.onion

Targets

    • Target

      c7f8289950b0d8aa97dceadf2a98aef51886710d56a5283b889c9ad191531028

    • Size

      130KB

    • MD5

      1e2b8973130672a1e739b035d30155b0

    • SHA1

      b4f098806ac9060f0f4dd3d63e8d831c69be6c81

    • SHA256

      c7f8289950b0d8aa97dceadf2a98aef51886710d56a5283b889c9ad191531028

    • SHA512

      a4be4accd1f5a7ab4131b477f61565822f545cff1c89e6167de4f07fa7bb1a8204c87c7ad7a40c83ed54161f5f4e6853196bb843949222384efd561692e2c4be

    Score
    10/10
    ryukdiscoveryransomware

    • Ryuk

      Ransomware distributed via existing botnets, often Trickbot or Emotet.

      ransomwareryuk

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

      discovery

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File Permissions Modification

1
T1222

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks