General

  • Target

    8fe04c6d9be067ca408438d4fcf316b7ff72897700e86f683ba65a1bea677523

  • Size

    156KB

  • Sample

    240817-vv41lsxbqa

  • MD5

    aa50dea32c4398f49128d5b903a38aef

  • SHA1

    cca7429109dd0e0d2d7f046a6af4ff40773d6722

  • SHA256

    8fe04c6d9be067ca408438d4fcf316b7ff72897700e86f683ba65a1bea677523

  • SHA512

    6ae2342df6fd7f0b70562b40d608f5f0c8b2230715934adff39ddae01ff7c0cfa9e78bf4261df473a73ad71cdea963d08ce36b919a5ca0f3a264af32eb5795c9

  • SSDEEP

    3072:NUWIAXFeSQ0oMfYMp2fCoeq63ychNeGQVm3Q4x4+VQ6s:NdIuppY6sdeZywNeGC4xI

Malware Config

Extracted

Family

xworm

Version

3.0

C2

sites-sing.gl.at.ply.gg:6789

Mutex

hsYEUqkLaSySRVeL

Attributes
  • Install_directory

    %LocalAppData%

  • install_file

    USB.exe

aes.plain

Targets

    • Target

      8fe04c6d9be067ca408438d4fcf316b7ff72897700e86f683ba65a1bea677523

    • Size

      156KB

    • MD5

      aa50dea32c4398f49128d5b903a38aef

    • SHA1

      cca7429109dd0e0d2d7f046a6af4ff40773d6722

    • SHA256

      8fe04c6d9be067ca408438d4fcf316b7ff72897700e86f683ba65a1bea677523

    • SHA512

      6ae2342df6fd7f0b70562b40d608f5f0c8b2230715934adff39ddae01ff7c0cfa9e78bf4261df473a73ad71cdea963d08ce36b919a5ca0f3a264af32eb5795c9

    • SSDEEP

      3072:NUWIAXFeSQ0oMfYMp2fCoeq63ychNeGQVm3Q4x4+VQ6s:NdIuppY6sdeZywNeGC4xI

    • 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.

    • Command and Scripting Interpreter: PowerShell

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

    • Checks computer location settings

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

    • 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.

    • Accesses Microsoft Outlook profiles

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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.

    • Drops desktop.ini file(s)

    • 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