General

  • Target

    Dropper.exe

  • Size

    18.0MB

  • Sample

    250307-1dwwkaykt4

  • MD5

    392b044ac8ee5751045a163b2d1a358f

  • SHA1

    56429e69619c0e69128732051db6e0e9bc40c18c

  • SHA256

    1001e70668789e08f7979484610e5246fa3c760142bc3ca8a55ce3da2301907a

  • SHA512

    2d0fd9963373132fde1d442d742efc95e8510f61325518aead420eeffb70e2a7566d95d3015ad930c4beddd2aa3d5b937b5711d0b0d09ee795eb6136aa26409b

  • SSDEEP

    393216:m9YidhKRmmb1TfHqO1UyXMCHWUjlVg74wdugWIPPVBFVVJo8W:m9Yidh0MyXMb8PDwduGPPVNV+8W

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

192.168.1.222:6606

192.168.1.222:7707

192.168.1.222:8808

Mutex

mA2752pAY1JK

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Extracted

Family

xworm

C2

192.168.1.222:7000

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

Targets

    • Target

      Dropper.exe

    • Size

      18.0MB

    • MD5

      392b044ac8ee5751045a163b2d1a358f

    • SHA1

      56429e69619c0e69128732051db6e0e9bc40c18c

    • SHA256

      1001e70668789e08f7979484610e5246fa3c760142bc3ca8a55ce3da2301907a

    • SHA512

      2d0fd9963373132fde1d442d742efc95e8510f61325518aead420eeffb70e2a7566d95d3015ad930c4beddd2aa3d5b937b5711d0b0d09ee795eb6136aa26409b

    • SSDEEP

      393216:m9YidhKRmmb1TfHqO1UyXMCHWUjlVg74wdugWIPPVBFVVJo8W:m9Yidh0MyXMb8PDwduGPPVNV+8W

    • AsyncRat

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

    • Asyncrat family

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • Async RAT payload

    • Modifies Windows Firewall

    • Checks computer location settings

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

    • Clipboard Data

      Adversaries may collect data stored in the clipboard from users copying information within or between applications.

    • 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.

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Looks up external IP address via web service

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

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

MITRE ATT&CK Enterprise v15

Tasks