General

  • Target

    @echo off.bat

  • Size

    2KB

  • Sample

    250303-zc2vrayj14

  • MD5

    1454db52a096ed81ab7ca936367ceabd

  • SHA1

    25c32881677a892e4b9bc7d45d387bec22847685

  • SHA256

    bf2edb2090118c826cb7fb3d3c7cbda1066bceaeaff02874d94f9ae940f2f09c

  • SHA512

    a895401536357a07d9bd9167f5c36152a8e06c68bf6967b8540493c51fc1f8cfd4bd60cf68a094ebddf33e272c3c39fa753952bba3c0ca0cc39bfc1e939792c7

Malware Config

Extracted

Family

xworm

Version

5.0

C2

137.184.74.73:5000

Mutex

fEkivyZANGvej5MK

Attributes
  • install_file

    USB.exe

aes.plain

Targets

    • Target

      @echo off.bat

    • Size

      2KB

    • MD5

      1454db52a096ed81ab7ca936367ceabd

    • SHA1

      25c32881677a892e4b9bc7d45d387bec22847685

    • SHA256

      bf2edb2090118c826cb7fb3d3c7cbda1066bceaeaff02874d94f9ae940f2f09c

    • SHA512

      a895401536357a07d9bd9167f5c36152a8e06c68bf6967b8540493c51fc1f8cfd4bd60cf68a094ebddf33e272c3c39fa753952bba3c0ca0cc39bfc1e939792c7

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

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

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks