General

  • Target

    build.exe

  • Size

    3.6MB

  • Sample

    241229-qmjbqasnbj

  • MD5

    159cb32f97f5a5297b9ef46e16556631

  • SHA1

    d9a2cee6035f972e395015c0847ffd491a65b284

  • SHA256

    452c77d9be7b82107a1325d98f75d0194e61c311e4fa7204a15b52e42bc3c2d2

  • SHA512

    6e974f974d1cb3104e20a51cbe7a636bd81af111ff64784f58a3194acaf6970545436cdc9ee6182a58c168e5aed68a3929baddf0c5227743496ee252136c1e77

  • 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

Extracted

Family

gurcu

C2

https://api.telegram.org/bot8186028481:AAFwGBBD5b2kT-q-75Ksfw-nU1TMlE5m8y0/getM

https://api.telegram.org/bot8186028481:AAFwGBBD5b2kT-q-75Ksfw-nU1TMlE5m8y0/sendMessage?chat_id=5685021465

Targets

    • Target

      build.exe

    • Size

      3.6MB

    • MD5

      159cb32f97f5a5297b9ef46e16556631

    • SHA1

      d9a2cee6035f972e395015c0847ffd491a65b284

    • SHA256

      452c77d9be7b82107a1325d98f75d0194e61c311e4fa7204a15b52e42bc3c2d2

    • SHA512

      6e974f974d1cb3104e20a51cbe7a636bd81af111ff64784f58a3194acaf6970545436cdc9ee6182a58c168e5aed68a3929baddf0c5227743496ee252136c1e77

    • SSDEEP

      98304:2kqXf0FlL9nrYAWAZi6sfLxkuahjCOeX9YG9see5GnRyCAm0makxH13C:2kSIlLtzWAXAkuujCPX9YG9he5GnQCAL

    • AsyncRat

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

    • Asyncrat family

    • Gurcu family

    • Gurcu, WhiteSnake

      Gurcu aka WhiteSnake is a malware stealer written in C#.

    • 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