General

  • Target

    Sonic Jam Soundfont.sf2

  • Size

    3.2MB

  • Sample

    240730-zrmz5ssflh

  • MD5

    eed5945d23b92c1bfabf61dbf7297ddb

  • SHA1

    0c0ec60c240100a6122aa31528ea4f08ca4a001d

  • SHA256

    541f769e9ad48f23373fcac85da5e22412f77aa837b339c6d1bf94719f7d4ea5

  • SHA512

    b3986c499c22f8bd5f48d6ba41e2aa18d014acdde2fb2acc75cf8ecb08b4bbc77239843490ff4076312a71153231726ed7238bff29179f6380f3ebe5e3b0b8e5

  • SSDEEP

    98304:y1ddUzwhL0VGo1k9FMr1kSxjfkm9kjhZ:AMzwhLQAar1kIjX9Q

Malware Config

Extracted

Family

xworm

Version

5.0

C2

94.141.120.222:7000

case-lan.gl.at.ply.gg:31587

Mutex

xdOIKQkVVHQuoFLl

Attributes
  • Install_directory

    %ProgramData%

  • install_file

    yo.exe

  • telegram

    https://api.telegram.org/bot7254934799:AAH0-lr3Fq5mBY3in6-SpVNvLOxMyfi_cE0/sendMessage?chat_id=7357257595

aes.plain
aes.plain

Extracted

Family

xworm

C2

drug-otherwise.gl.at.ply.gg:19276

Attributes
  • Install_directory

    %ProgramData%

  • install_file

    ntoskrnl.exe

Targets

    • Target

      Sonic Jam Soundfont.sf2

    • Size

      3.2MB

    • MD5

      eed5945d23b92c1bfabf61dbf7297ddb

    • SHA1

      0c0ec60c240100a6122aa31528ea4f08ca4a001d

    • SHA256

      541f769e9ad48f23373fcac85da5e22412f77aa837b339c6d1bf94719f7d4ea5

    • SHA512

      b3986c499c22f8bd5f48d6ba41e2aa18d014acdde2fb2acc75cf8ecb08b4bbc77239843490ff4076312a71153231726ed7238bff29179f6380f3ebe5e3b0b8e5

    • SSDEEP

      98304:y1ddUzwhL0VGo1k9FMr1kSxjfkm9kjhZ:AMzwhLQAar1kIjX9Q

    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • 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#.

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Powershell Invoke Web Request.

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Drops startup file

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • 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

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • 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.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks