General

  • Target

    build.exe

  • Size

    3.6MB

  • Sample

    241229-qvskcsspaw

  • MD5

    2005c36df30a92d045d80c76be86d157

  • SHA1

    5e821a88c68ca7fc61e7fd88a6127d35c7af3d7f

  • SHA256

    b94561e6149960253a8ff55a26fa68c7794b8fced2deade95d6b2e95b5d932af

  • SHA512

    ad2c3667101e450566e8b0f7ee3a05c022bed6b1c64007f5c3f21c8bc6e062910c32c93e5b616188fec9d1c625a9a148b42b911d362f6ffd45f2953db38c1275

  • SSDEEP

    98304:2kqXf0FlL9nrYAWAZi6sfLxkuahjCOeX9YG9see5GnRyCAm0makxH13C:2kSIlLtzWAXAkuujCPX9YG9he5GnQCAL

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

C2

51.89.44.68:8848

Mutex

etb3t1tr5n

Attributes
  • delay

    1

  • install

    true

  • install_file

    svchost.exe

  • install_folder

    %Temp%

aes.plain

Targets

    • Target

      build.exe

    • Size

      3.6MB

    • MD5

      2005c36df30a92d045d80c76be86d157

    • SHA1

      5e821a88c68ca7fc61e7fd88a6127d35c7af3d7f

    • SHA256

      b94561e6149960253a8ff55a26fa68c7794b8fced2deade95d6b2e95b5d932af

    • SHA512

      ad2c3667101e450566e8b0f7ee3a05c022bed6b1c64007f5c3f21c8bc6e062910c32c93e5b616188fec9d1c625a9a148b42b911d362f6ffd45f2953db38c1275

    • SSDEEP

      98304:2kqXf0FlL9nrYAWAZi6sfLxkuahjCOeX9YG9see5GnRyCAm0makxH13C:2kSIlLtzWAXAkuujCPX9YG9he5GnQCAL

    • AsyncRat

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

    • Asyncrat family

    • Async RAT payload

    • Downloads MZ/PE file

    • 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.

    • Accesses Microsoft Outlook profiles

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

MITRE ATT&CK Enterprise v15

Tasks