General

  • Target

    b42d07f0b72879bf21e99f39a21edae1a38c3fd62393bd4e88f1032f561855f9

  • Size

    147KB

  • Sample

    210710-ed82t5s2je

  • MD5

    6c0bb20e1158593211a7cbcbacb3dd83

  • SHA1

    3a74a3aafde31b4f129e515baabe9833bf359f8e

  • SHA256

    b42d07f0b72879bf21e99f39a21edae1a38c3fd62393bd4e88f1032f561855f9

  • SHA512

    7b882a2141435d71bc6602e1622dfb4d0b1734cf3444554e247a75700924a8dafee79c7f0153390bd800b9733ec3106f0864f83126231c268ce2a39087388a8d

Malware Config

Extracted

Path

C:\$Recycle.Bin\RyukReadMe.html

Family

ryuk

Ransom Note
contact balance of shadow universe Ryuk $password = '2cvCR2CMQ1qi'; $torlink = 'http://hqcqsw6et744hz7tx7rudmerk6fjyifovm6upec4ceqjndbmu34vs6yd.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://hqcqsw6et744hz7tx7rudmerk6fjyifovm6upec4ceqjndbmu34vs6yd.onion

Targets

    • Target

      b42d07f0b72879bf21e99f39a21edae1a38c3fd62393bd4e88f1032f561855f9

    • Size

      147KB

    • MD5

      6c0bb20e1158593211a7cbcbacb3dd83

    • SHA1

      3a74a3aafde31b4f129e515baabe9833bf359f8e

    • SHA256

      b42d07f0b72879bf21e99f39a21edae1a38c3fd62393bd4e88f1032f561855f9

    • SHA512

      7b882a2141435d71bc6602e1622dfb4d0b1734cf3444554e247a75700924a8dafee79c7f0153390bd800b9733ec3106f0864f83126231c268ce2a39087388a8d

    • Ryuk

      Ransomware distributed via existing botnets, often Trickbot or Emotet.

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

File Permissions Modification

1
T1222

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Tasks