General

  • Target

    WinRAR 7.01 Pro.exe

  • Size

    4.3MB

  • Sample

    240831-y2f4xatbpb

  • MD5

    1c8908102946928867ab16f2007b35cc

  • SHA1

    7e08b98299e0195a013e53221e3c2efb149eb4ce

  • SHA256

    e3635b82438e536636955e2fee251073b1038a7e00295a1e0efb003ad49965d5

  • SHA512

    a559caedc7b00da23cb18607d0f2f05c6954a949dff0c8a4c25f6353163b70fd16722728878bb87c9db5cff86dc0252f967ebc26a66cb975af85f1361372a734

  • SSDEEP

    98304:DaxGFtNdBfKEgzVQYAO52weo3VudIlHSTNWA0rkjEaxKd:DRdytzAO52wLVu2oBWv7t

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

https://api.telegram.org/bot5912059723:AAEvmpZvnGHJALjBBXk_PBuStnzDRsTe4-M/sendMessage?chat_id=750182271

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      WinRAR 7.01 Pro.exe

    • Size

      4.3MB

    • MD5

      1c8908102946928867ab16f2007b35cc

    • SHA1

      7e08b98299e0195a013e53221e3c2efb149eb4ce

    • SHA256

      e3635b82438e536636955e2fee251073b1038a7e00295a1e0efb003ad49965d5

    • SHA512

      a559caedc7b00da23cb18607d0f2f05c6954a949dff0c8a4c25f6353163b70fd16722728878bb87c9db5cff86dc0252f967ebc26a66cb975af85f1361372a734

    • SSDEEP

      98304:DaxGFtNdBfKEgzVQYAO52weo3VudIlHSTNWA0rkjEaxKd:DRdytzAO52wLVu2oBWv7t

    • AsyncRat

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

    • StormKitty

      StormKitty is an open source info stealer written in C#.

    • StormKitty payload

    • Async RAT payload

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • .NET Reactor proctector

      Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Drops desktop.ini file(s)

MITRE ATT&CK Enterprise v15

Tasks