General

  • Target

    b1756113e2a0e25ae11fe444f0029f75a30b9c47794933cb066a63c84a78193c

  • Size

    68KB

  • Sample

    250305-jna86stjw6

  • MD5

    9821e1e4aacd033130ebdc73c37e958e

  • SHA1

    2971d7117d155309f860740d8edfb25f7b4dc947

  • SHA256

    b1756113e2a0e25ae11fe444f0029f75a30b9c47794933cb066a63c84a78193c

  • SHA512

    a1eed0001124e21ad5ed1d9b010ab7fea175c8d5ea38366befe35c834e564995c919ad091fe54462abd2db0c5612cefcc047b852ce6cccd0b3ccd5534824bc03

  • SSDEEP

    1536:R4BEioJRb0gPtcsur5Wfb62+496LvfOgMR5V:R4BEDb0gasur5Eb6y8OgMDV

Malware Config

Extracted

Family

xworm

C2

4.tcp.ngrok.io:11205

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

Targets

    • Target

      b1756113e2a0e25ae11fe444f0029f75a30b9c47794933cb066a63c84a78193c

    • Size

      68KB

    • MD5

      9821e1e4aacd033130ebdc73c37e958e

    • SHA1

      2971d7117d155309f860740d8edfb25f7b4dc947

    • SHA256

      b1756113e2a0e25ae11fe444f0029f75a30b9c47794933cb066a63c84a78193c

    • SHA512

      a1eed0001124e21ad5ed1d9b010ab7fea175c8d5ea38366befe35c834e564995c919ad091fe54462abd2db0c5612cefcc047b852ce6cccd0b3ccd5534824bc03

    • SSDEEP

      1536:R4BEioJRb0gPtcsur5Wfb62+496LvfOgMR5V:R4BEDb0gasur5Eb6y8OgMDV

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • 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