General

  • Target

    XClient.exe

  • Size

    40KB

  • Sample

    241120-x429gswnel

  • MD5

    c27dbd40d9b95cc905cd9e5654957b96

  • SHA1

    93de948ac09ff2dcc7b18aa8319348af0b45c086

  • SHA256

    512fd113d8f935e30876bb0e676b1fda4491bc20d93981852b5fe5d20120018c

  • SHA512

    28a558dc22bd21102491a448b1303543c778f940a19a81dfa8ce8a7117bdd97615fab0fc9c725fddfe6dd617fba71735526d361ee473ae240feb4ef85217507d

  • SSDEEP

    768:DIDwCrxY4mpc9i32v6hCuuJf27ZZfFWPG9/4CH6OOwh7jGbG:kDwCFY4gckGwCuuJfKFv9/b6OOwBC6

Malware Config

Extracted

Family

xworm

Version

5.0

C2

10.9.248.138:29647

Mutex

MF0uVfTkZ1RT2XUc

Attributes
  • Install_directory

    %AppData%

  • install_file

    $77MicrosoftDefender.exe

aes.plain

Targets

    • Target

      XClient.exe

    • Size

      40KB

    • MD5

      c27dbd40d9b95cc905cd9e5654957b96

    • SHA1

      93de948ac09ff2dcc7b18aa8319348af0b45c086

    • SHA256

      512fd113d8f935e30876bb0e676b1fda4491bc20d93981852b5fe5d20120018c

    • SHA512

      28a558dc22bd21102491a448b1303543c778f940a19a81dfa8ce8a7117bdd97615fab0fc9c725fddfe6dd617fba71735526d361ee473ae240feb4ef85217507d

    • SSDEEP

      768:DIDwCrxY4mpc9i32v6hCuuJf27ZZfFWPG9/4CH6OOwh7jGbG:kDwCFY4gckGwCuuJfKFv9/b6OOwBC6

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • 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

    • Adds Run key to start application

MITRE ATT&CK Enterprise v15

Tasks