General

  • Target

    PhantomCrypter.exe

  • Size

    5.2MB

  • Sample

    250307-2hryvayvbt

  • MD5

    e877adfe74b6bd2ad9b9f5c73f839152

  • SHA1

    ff73461cd1fc5d9755d8dfa135ed3f6401989d00

  • SHA256

    71e09355e41f28652a3749b8f109c75eb4e2b80fd2d3d651c420d6b1b73aaa96

  • SHA512

    7c0828a3e966dee6e93e8c6797068c1d4b27a9c1b88249381db6028d7ec18b282560a9e215da2f2c9841307c0f1732fea47983107fd606b850386e993f7431d1

  • SSDEEP

    98304:KUJgH4K+NsPeD9k/OYU2HkSBEIHFP2gH4KdBwgH/fkEihw:KUcT+NsPOkeLAVFXTdBwgH/Mr

Malware Config

Extracted

Family

xworm

Version

5.0

Mutex

fSptE7osVO19YSsZ

Attributes
  • Install_directory

    %AppData%

  • install_file

    msedge.exe

  • pastebin_url

    https://pastebin.com/raw/eZa6J63T

aes.plain
aes.plain
aes.plain
aes.plain

Targets

    • Target

      PhantomCrypter.exe

    • Size

      5.2MB

    • MD5

      e877adfe74b6bd2ad9b9f5c73f839152

    • SHA1

      ff73461cd1fc5d9755d8dfa135ed3f6401989d00

    • SHA256

      71e09355e41f28652a3749b8f109c75eb4e2b80fd2d3d651c420d6b1b73aaa96

    • SHA512

      7c0828a3e966dee6e93e8c6797068c1d4b27a9c1b88249381db6028d7ec18b282560a9e215da2f2c9841307c0f1732fea47983107fd606b850386e993f7431d1

    • SSDEEP

      98304:KUJgH4K+NsPeD9k/OYU2HkSBEIHFP2gH4KdBwgH/fkEihw:KUcT+NsPOkeLAVFXTdBwgH/Mr

    • 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.

    • Download via BitsAdmin

    • 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

    • Legitimate hosting services abused for malware hosting/C2

MITRE ATT&CK Enterprise v15

Tasks