General

  • Target

    WaveWindows-nc.exe

  • Size

    5.5MB

  • Sample

    240709-3r38xatamk

  • MD5

    e9c64620dc920a64a2448e78de1cff90

  • SHA1

    08e62b663da83d2fe304bba18381e87192313201

  • SHA256

    26838283be0848527497674165c96a7683ccdbac999d8a226d9878a3ca7717a5

  • SHA512

    83ef90821b8da79218c20c0ab287c1155f6d9fe36bee0419187ef215c73a66c33502966cfef4c17ac89502777518f1d00357387716ef914b0c82b0615ea12fc3

  • SSDEEP

    49152:N3hTD+mOHaN2e1AUgbOtf7s51lL7Grsm4IPMWnjy5EAP+VZ1LojCWvzThoCW0vai:RJj2etsR7Ggm2Ey1yJvUyb

Malware Config

Extracted

Family

xworm

Version

5.0

Mutex

C9IM3x5CL1ZIpfuG

Attributes
  • Install_directory

    %LocalAppData%

  • install_file

    ReAgentC.exe

  • pastebin_url

    https://pastebin.com/raw/UWpQULMP

  • telegram

    https://api.telegram.org/bot7420124943:AAF1r0gN9LdH2HJhpp3RjQMBU2cphBasfrs

aes.plain

Targets

    • Target

      WaveWindows-nc.exe

    • Size

      5.5MB

    • MD5

      e9c64620dc920a64a2448e78de1cff90

    • SHA1

      08e62b663da83d2fe304bba18381e87192313201

    • SHA256

      26838283be0848527497674165c96a7683ccdbac999d8a226d9878a3ca7717a5

    • SHA512

      83ef90821b8da79218c20c0ab287c1155f6d9fe36bee0419187ef215c73a66c33502966cfef4c17ac89502777518f1d00357387716ef914b0c82b0615ea12fc3

    • SSDEEP

      49152:N3hTD+mOHaN2e1AUgbOtf7s51lL7Grsm4IPMWnjy5EAP+VZ1LojCWvzThoCW0vai:RJj2etsR7Ggm2Ey1yJvUyb

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Downloads MZ/PE file

    • 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

    • 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