General

  • Target

    First.exe

  • Size

    21KB

  • Sample

    240928-fgq49sxgpn

  • MD5

    c1d6e0a7cb5f59781fe6fb8e28b9c3e6

  • SHA1

    ea12f2eb7216851d488b694c3ed72040e236b67c

  • SHA256

    3daacb3f869e6a293c943fe782d480129c831c6aeeca408e17dd7ba5255e3983

  • SHA512

    fb8d04c043077b9908baf5913356c55c91944d0c452ece8716327f996b504fa7cd9d6104668069055c6b8285b1df2af5892f18c8e59c11cb4b9fc74e7d5d54a2

  • SSDEEP

    384:IDRQmNZSqPDyqXVQmXNQltXpQyXlQx/uoOQtGQmXE9RrA5SX7jd2Szli5lG7NqPa:Za32tzclrVLjdbi5lGMVA3g

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

127.0.0.1:7777

45.137.198.159:7777

Mutex

pgUcrHSbq2HY

Attributes
  • delay

    3

  • install

    true

  • install_file

    123987.exe

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      First.exe

    • Size

      21KB

    • MD5

      c1d6e0a7cb5f59781fe6fb8e28b9c3e6

    • SHA1

      ea12f2eb7216851d488b694c3ed72040e236b67c

    • SHA256

      3daacb3f869e6a293c943fe782d480129c831c6aeeca408e17dd7ba5255e3983

    • SHA512

      fb8d04c043077b9908baf5913356c55c91944d0c452ece8716327f996b504fa7cd9d6104668069055c6b8285b1df2af5892f18c8e59c11cb4b9fc74e7d5d54a2

    • SSDEEP

      384:IDRQmNZSqPDyqXVQmXNQltXpQyXlQx/uoOQtGQmXE9RrA5SX7jd2Szli5lG7NqPa:Za32tzclrVLjdbi5lGMVA3g

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers written in C#.

    • Modifies Windows Defender Real-time Protection settings

    • Async RAT payload

    • Disables Task Manager via registry modification

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

MITRE ATT&CK Enterprise v15

Tasks