General

  • Target

    a150a433c6a3e4278f6cc4cbc85863fc431e5c1e65081ad67253513e8ca01282

  • Size

    63KB

  • Sample

    240523-m7k49sea29

  • MD5

    b8d455465260a845db35492fda5a8888

  • SHA1

    287b0ba049ad8f3be802d2224efb86dba72d3221

  • SHA256

    a150a433c6a3e4278f6cc4cbc85863fc431e5c1e65081ad67253513e8ca01282

  • SHA512

    5dba43ae31420de362593752e8ff491afbe8d20f183f6b95e6962ea1e637c7bf3bd50b5213e4d928a96b85d9b54841ee697798b0089624b13ef7eded826cd86a

  • SSDEEP

    768:CuY6LVcsTPq781wC8A+XjuazcBRL5JTk1+T4KSBGHmDbD/ph0oX9rAW6dEYSuEdP:reQPckdSJYUbdh9O8uEdpqKmY7

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

66.235.168.242:3232

Attributes
  • delay

    1

  • install

    true

  • install_file

    Loaader.exe

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      a150a433c6a3e4278f6cc4cbc85863fc431e5c1e65081ad67253513e8ca01282

    • Size

      63KB

    • MD5

      b8d455465260a845db35492fda5a8888

    • SHA1

      287b0ba049ad8f3be802d2224efb86dba72d3221

    • SHA256

      a150a433c6a3e4278f6cc4cbc85863fc431e5c1e65081ad67253513e8ca01282

    • SHA512

      5dba43ae31420de362593752e8ff491afbe8d20f183f6b95e6962ea1e637c7bf3bd50b5213e4d928a96b85d9b54841ee697798b0089624b13ef7eded826cd86a

    • SSDEEP

      768:CuY6LVcsTPq781wC8A+XjuazcBRL5JTk1+T4KSBGHmDbD/ph0oX9rAW6dEYSuEdP:reQPckdSJYUbdh9O8uEdpqKmY7

    • AsyncRat

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

    • Modifies Windows Defender Real-time Protection settings

    • Stealerium

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

    • UAC bypass

    • Async RAT payload

    • 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.

    • Windows security modification

    • Accesses Microsoft Outlook profiles

    • Checks whether UAC is enabled

    • Looks up external IP address via web service

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

    • Looks up geolocation information via web service

      Uses a legitimate geolocation service to find the infected system's geolocation info.

MITRE ATT&CK Enterprise v15

Tasks