General

  • Target

    Solara.exe

  • Size

    81KB

  • Sample

    250307-vbh9sstps9

  • MD5

    58bcc48a811e079d2c3272e1fc8a76cb

  • SHA1

    1d67680563bb8fe531e1a9d66df9d2f7021bfaec

  • SHA256

    cc815864b1c6bd12ed7135a8055329f3db91f24380c2d1e3d42a9db2c2c043dc

  • SHA512

    78db8d62fed07825a039180842fb009f443c484a8f85bf263810b777234f29b05a0f851901df910665b426ecf0b7de213890f853780a95037d3b96724970094a

  • SSDEEP

    1536:IiDsV1cWZoegtgqFRbeH+b+yux2XG76zyTjvOtPiG+1P9OspW:Ii6FqFRbM+b+HTjvOtPf+XU

Malware Config

Extracted

Family

xworm

Attributes
  • Install_directory

    %AppData%

  • install_file

    svchost.exe

  • pastebin_url

    https://pastebin.com/raw/FgmKAhUD

Targets

    • Target

      Solara.exe

    • Size

      81KB

    • MD5

      58bcc48a811e079d2c3272e1fc8a76cb

    • SHA1

      1d67680563bb8fe531e1a9d66df9d2f7021bfaec

    • SHA256

      cc815864b1c6bd12ed7135a8055329f3db91f24380c2d1e3d42a9db2c2c043dc

    • SHA512

      78db8d62fed07825a039180842fb009f443c484a8f85bf263810b777234f29b05a0f851901df910665b426ecf0b7de213890f853780a95037d3b96724970094a

    • SSDEEP

      1536:IiDsV1cWZoegtgqFRbeH+b+yux2XG76zyTjvOtPiG+1P9OspW:Ii6FqFRbM+b+HTjvOtPf+XU

    • 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.

    • 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