General

  • Target

    XClient.exe

  • Size

    79KB

  • Sample

    240528-pphbrsde6v

  • MD5

    81630e94eabda4e1a57ac4f1952db556

  • SHA1

    9d7276205d8cedba924859bbbbef305890baff23

  • SHA256

    2d2e27dc029c468d7a019fcde90fb2ffddd0bf02cafa0357cd86310645bb7473

  • SHA512

    f9dca5f30cc1908d47a806c5b2b3a1c1b8c3c3b75bbdac9811307f83f4ac2fabcb6f2ae7630c9f25e7be5f710c525b63f49fa814c1d498d1d0872b5d9a7d3bec

  • SSDEEP

    1536:ZG0+RNQYxXBpLLLoypsKCJJ5Ybimcg6cbD8K3QG6VG6xqhGpOggM3xZRw:Zb+RN5bLGFYbi7cDVg9A+OggM5w

Malware Config

Extracted

Family

xworm

C2

https://pastebin.com/raw/qaWffTar:5

Attributes
  • Install_directory

    %AppData%

  • install_file

    svchost.exe

  • pastebin_url

    https://pastebin.com/raw/qaWffTar

Targets

    • Target

      XClient.exe

    • Size

      79KB

    • MD5

      81630e94eabda4e1a57ac4f1952db556

    • SHA1

      9d7276205d8cedba924859bbbbef305890baff23

    • SHA256

      2d2e27dc029c468d7a019fcde90fb2ffddd0bf02cafa0357cd86310645bb7473

    • SHA512

      f9dca5f30cc1908d47a806c5b2b3a1c1b8c3c3b75bbdac9811307f83f4ac2fabcb6f2ae7630c9f25e7be5f710c525b63f49fa814c1d498d1d0872b5d9a7d3bec

    • SSDEEP

      1536:ZG0+RNQYxXBpLLLoypsKCJJ5Ybimcg6cbD8K3QG6VG6xqhGpOggM3xZRw:Zb+RN5bLGFYbi7cDVg9A+OggM5w

    • Detect Xworm Payload

    • StormKitty

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

    • StormKitty payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Drops startup file

    • Executes dropped EXE

    • 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

    • 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