General

  • Target

    2024-10-29_4d339a2f921fcac88f6f17702fca7436_ryuk

  • Size

    137KB

  • Sample

    241029-f8tz8swgqj

  • MD5

    4d339a2f921fcac88f6f17702fca7436

  • SHA1

    adc2d7697c74b4fcc01afa5feb2711df44dc8046

  • SHA256

    94b80a9b040dee10001d8347d6d44b97f8c24a39e4852d9bff813e4c6158ef44

  • SHA512

    722e1aae39a67a197ea5e1d51daa53940a4b21ca82b4025510f86936c6489933472a61ff656a2b61cc68c305190683e324e0e71156a28d44584a75726104c4b3

  • SSDEEP

    3072:dxxED/D0VpMHZLZKMrkBne78xB0IwWMZ4OVvYV/J/9KEZUwVs:dxCkVpMHZLZ+Re78pwrJv2JTL

Malware Config

Extracted

Family

phorphiex

C2

http://185.215.113.66/

http://91.202.233.141/

Wallets

0xCa90599132C4D88907Bd8E046540284aa468a035

TRuGGXNDM1cavQ1AqMQHG8yfxP4QWVSMN6

qph44jx8r9k5xeq5cuf958krv3ewrnp5vc6hhdjd3r

XryzFMFVpDUvU7famUGf214EXD3xNUSmQf

rsXCXBf9SagxV8JfC12d8Bybk84oPdMNN9

AULzfBuUAPfCGAXoG5Vq14aP9s6fx3AH4Z

LTK4xdKPAgFHPLan8kriAD7eY4heyy73mB

MP8GEm8QpYgQYaMo8oM5NQhRBgDGiLZW5Q

4BB7ckkaPTyADc8trtuwDoZxywaR4eNL5cDJ3KBjq9GraN4mUFztf7mLS7WgT7Bh7uPqpjvA4ypVwXKCJ1vvLWWAFvSmDoD

15TssKwtjMtwy4vDLcLsQUZUD2B9f7eDjw85sBNVC5LRPPnC

1BzmrjmKPKSR2hH5BeJySfiVA676E8DYaK

ltc1qt0n3f0t7vz9k0mvcswk477shrxwjhf9sj5ykrp

3PMiLynrGVZ8oEqvoqC4hXD67B1WoALR4pc

3ESHude8zUHksQg1h6hHmzY79BS36L91Yn

DLUzwvyxN1RrwjByUPPzVMdfxNRPGVRMMA

t1J6GCPCiHW1eRdjJgDDu6b1vSVmL5U7Twh

stars125f3mw4xd9htpsq4zj5w5ezm5gags37yxxh6mj

bnb1msyt0djx4ecspfxg5en0ye465kg3kmv9utzml2

bc1ppypcmu3684n648gyj62gjp2rw0xy7w3vwfamatlg29ajp4z52desafa0sr

bc1qc9edl4hzl9jyt8twdad3zjeh2df2znq96tdezd

Attributes
  • mutex

    mmn7nnm8na

  • user_agent

    Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Extracted

Family

phorphiex

C2

http://185.215.113.84

Targets

    • Target

      2024-10-29_4d339a2f921fcac88f6f17702fca7436_ryuk

    • Size

      137KB

    • MD5

      4d339a2f921fcac88f6f17702fca7436

    • SHA1

      adc2d7697c74b4fcc01afa5feb2711df44dc8046

    • SHA256

      94b80a9b040dee10001d8347d6d44b97f8c24a39e4852d9bff813e4c6158ef44

    • SHA512

      722e1aae39a67a197ea5e1d51daa53940a4b21ca82b4025510f86936c6489933472a61ff656a2b61cc68c305190683e324e0e71156a28d44584a75726104c4b3

    • SSDEEP

      3072:dxxED/D0VpMHZLZKMrkBne78xB0IwWMZ4OVvYV/J/9KEZUwVs:dxCkVpMHZLZ+Re78pwrJv2JTL

    • Modifies security service

    • Phorphiex family

    • Phorphiex payload

    • Phorphiex, Phorpiex

      Phorphiex or Phorpiex Malware family which infects systems to distribute other malicious payloads such as ransomware, stealers and cryptominers.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Windows security bypass

    • Xmrig family

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • XMRig Miner payload

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Downloads MZ/PE file

    • Stops running service(s)

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Windows security modification

    • Adds Run key to start application

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks