General

  • Target

    Infected.exe

  • Size

    63KB

  • Sample

    241111-cgrt1szekp

  • MD5

    9946d546b012e2ae18dd4e7614ce200a

  • SHA1

    c6447183bdb1db024d5c263745ab07b99399bc73

  • SHA256

    93f9787fddb2cf2d02f5e28432e9235ad726114c6821d50b6b29affd7ccf1440

  • SHA512

    fdba49f0879b613a19352130fc0d2725b84ffd5ef9dcb111e5cf46ada4e05478099c8796b12a315a1209f4a58873e454e543dd68a06a5846218717faf098ef1b

  • SSDEEP

    768:/LQXPRKF4j7C78BIC8A+X+mazcBRL5JTk1+T4KSBGHmDbD/ph0oX25QqSuodpqKX:k/RKy7QxdSJYUbdh9sQduodpqKmY7

Malware Config

Extracted

Family

asyncrat

Botnet

RATTERS

C2

costs-river.gl.at.ply.gg:50440

Attributes
  • delay

    4

  • install

    true

  • install_file

    Microsoft Antimalware Service.exe

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      Infected.exe

    • Size

      63KB

    • MD5

      9946d546b012e2ae18dd4e7614ce200a

    • SHA1

      c6447183bdb1db024d5c263745ab07b99399bc73

    • SHA256

      93f9787fddb2cf2d02f5e28432e9235ad726114c6821d50b6b29affd7ccf1440

    • SHA512

      fdba49f0879b613a19352130fc0d2725b84ffd5ef9dcb111e5cf46ada4e05478099c8796b12a315a1209f4a58873e454e543dd68a06a5846218717faf098ef1b

    • SSDEEP

      768:/LQXPRKF4j7C78BIC8A+X+mazcBRL5JTk1+T4KSBGHmDbD/ph0oX25QqSuodpqKX:k/RKy7QxdSJYUbdh9sQduodpqKmY7

    • AsyncRat

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

    • Asyncrat family

    • Stealerium

      An open source info stealer written in C# first seen in May 2022.

    • Stealerium family

    • StormKitty

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

    • StormKitty payload

    • Stormkitty family

    • Async RAT payload

    • Renames multiple (1275) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • 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.

MITRE ATT&CK Enterprise v15

Tasks