General

  • Target

    7d59c4205716c6ecd07f9ed16c6e6bf31a9181939eb8642f0524152ba6260270N.exe

  • Size

    92KB

  • Sample

    241202-jr73bawney

  • MD5

    bcfb81d704304fd20f55ea8a2bf2e980

  • SHA1

    6ec2559f2cbc18f338bb57460cd0711044b204af

  • SHA256

    7d59c4205716c6ecd07f9ed16c6e6bf31a9181939eb8642f0524152ba6260270

  • SHA512

    992f1a997888d0a4a8bca0edf1cf375f13784b1d6de2a365540c4574f6cdcb066de6582ec23fbd244d6d144dbfa09ef223de1d1f49e3edc3456a889e1b820aae

  • SSDEEP

    1536:crJI24EUYDOqNzm5Rw7SnSXC3bWbZ64mP6ALIFOVpwOVkqZfVM+5Jh:crJFewmSXmbWbZmJLYA+OXRVM+p

Malware Config

Extracted

Family

xworm

Attributes
  • Install_directory

    %AppData%

  • install_file

    MicrosoftEdgeUpdateTaskMachineRU.exe

  • pastebin_url

    https://pastebin.com/raw/mNLAd9Px

Targets

    • Target

      7d59c4205716c6ecd07f9ed16c6e6bf31a9181939eb8642f0524152ba6260270N.exe

    • Size

      92KB

    • MD5

      bcfb81d704304fd20f55ea8a2bf2e980

    • SHA1

      6ec2559f2cbc18f338bb57460cd0711044b204af

    • SHA256

      7d59c4205716c6ecd07f9ed16c6e6bf31a9181939eb8642f0524152ba6260270

    • SHA512

      992f1a997888d0a4a8bca0edf1cf375f13784b1d6de2a365540c4574f6cdcb066de6582ec23fbd244d6d144dbfa09ef223de1d1f49e3edc3456a889e1b820aae

    • SSDEEP

      1536:crJI24EUYDOqNzm5Rw7SnSXC3bWbZ64mP6ALIFOVpwOVkqZfVM+5Jh:crJFewmSXmbWbZmJLYA+OXRVM+p

    • 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.

    • Executes dropped EXE

    • Adds Run key to start application

    • 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.

MITRE ATT&CK Enterprise v15

Tasks