General

  • Target

    HmWlkY

  • Size

    7KB

  • Sample

    241214-ba1ynssma1

  • MD5

    aa5d13590623abb5d3963a8af5dfb85d

  • SHA1

    8dcb62e75f970ac4f9f78e2558f335951b599774

  • SHA256

    4c6183029dcf2e4d604c473c2dfb4f72037b6a8f13d9183b0842fd201e422d7a

  • SHA512

    94899bfebc29d4d76c1a8d0e9b787ae50386a5e8718194791d27d86eb7e67e1b0e1a9b0a4e68031905c767419bd767b9d2666ac5ffd0a8dd87c0bf842ac7282b

  • SSDEEP

    96:CMq9SlLh2B3Zq36uWl/PtxyjttJQ8Maoah3vL5LaNclmnU1Eh2sS:T1lLhwJrPahtJxMaoah3vG12sS

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

ukrainian.zapto.org:5552

Mutex

0q7bJfCnXR4l

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Extracted

Family

njrat

Version

v2.0

Botnet

HacKed

C2

ukrainian.zapto.org:5552

Mutex

Windows

Attributes
  • reg_key

    Windows

  • splitter

    |-F-|

Targets

    • Target

      HmWlkY

    • Size

      7KB

    • MD5

      aa5d13590623abb5d3963a8af5dfb85d

    • SHA1

      8dcb62e75f970ac4f9f78e2558f335951b599774

    • SHA256

      4c6183029dcf2e4d604c473c2dfb4f72037b6a8f13d9183b0842fd201e422d7a

    • SHA512

      94899bfebc29d4d76c1a8d0e9b787ae50386a5e8718194791d27d86eb7e67e1b0e1a9b0a4e68031905c767419bd767b9d2666ac5ffd0a8dd87c0bf842ac7282b

    • SSDEEP

      96:CMq9SlLh2B3Zq36uWl/PtxyjttJQ8Maoah3vL5LaNclmnU1Eh2sS:T1lLhwJrPahtJxMaoah3vG12sS

    • AsyncRat

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

    • Asyncrat family

    • Njrat family

    • njRAT/Bladabindi

      Widely used RAT written in .NET.

    • Async RAT payload

    • Downloads MZ/PE file

    • Modifies Windows Firewall

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Adds Run key to start application

    • Sets desktop wallpaper using registry

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks