General

  • Target

    3644f9a06d97f903a5ceebdd7f2f4500.exe

  • Size

    222KB

  • Sample

    240628-hm25tswerh

  • MD5

    3644f9a06d97f903a5ceebdd7f2f4500

  • SHA1

    53ed26fba664d03b0e2423d6da7235c983fe2a1e

  • SHA256

    bfc572da40fc3dcbee2ff5590ad5f630becf69e18df37b44140bd4f214facf56

  • SHA512

    f0dced1046018e83a33acc0e06f43bdd300ae4defff974c033a1f16cfd78c366cfd11e480554c197d844442fcfd51494ea39abb7c9c22c686d1b3a6cf5c30d1a

  • SSDEEP

    6144:zVW1Fk5kc9tepTde06Or1HVSuZyfbqLW:JWnYt0hHVSuTLW

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

94.232.249.111:6606

94.232.249.111:7707

94.232.249.111:8808

Mutex

o6tEeoRxJb0n

Attributes
  • delay

    3

  • install

    true

  • install_file

    svchost.exe

  • install_folder

    %AppData%

aes.plain

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/bot7379351260:AAGqtKlpHd72GFMRON17QY1OA6l1sR7mBik/sendMessage?chat_id=5795480469

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      3644f9a06d97f903a5ceebdd7f2f4500.exe

    • Size

      222KB

    • MD5

      3644f9a06d97f903a5ceebdd7f2f4500

    • SHA1

      53ed26fba664d03b0e2423d6da7235c983fe2a1e

    • SHA256

      bfc572da40fc3dcbee2ff5590ad5f630becf69e18df37b44140bd4f214facf56

    • SHA512

      f0dced1046018e83a33acc0e06f43bdd300ae4defff974c033a1f16cfd78c366cfd11e480554c197d844442fcfd51494ea39abb7c9c22c686d1b3a6cf5c30d1a

    • SSDEEP

      6144:zVW1Fk5kc9tepTde06Or1HVSuZyfbqLW:JWnYt0hHVSuTLW

    • 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

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Adds Run key to start application

    • Drops desktop.ini file(s)

    • 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.

    • Looks up geolocation information via web service

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks