General

  • Target

    4.exe

  • Size

    103KB

  • Sample

    250306-n3k45sxxct

  • MD5

    71e0c8f71b15046709d4e250086346a4

  • SHA1

    9536f9bc5e10128074cdd2597e970b29d44c4bcd

  • SHA256

    462e4f6c2647a8fffb7be6a37eca3dfef4051f9f20a5e8927b446d98d1af84f0

  • SHA512

    15cd09125122f6e79bffc9112ee888c4afef515d09a9598da2b23cbc240b043e63f1d3d6538c74fc56cd65eeeb756679f1a4d54dd74e0a026ba80a7999dff2ba

  • SSDEEP

    1536:EfDrLD7tmNEoCfjSbHb7RqWYZvZqF3c9MwsUSEJxY87d17:EHLD7Ewub70Wmy3VwQGxY87r7

Malware Config

Extracted

Family

xworm

Version

5.0

Mutex

QIUpnGyi0OFuIMGO

Attributes
  • install_file

    USB.exe

aes.plain

Targets

    • Target

      4.exe

    • Size

      103KB

    • MD5

      71e0c8f71b15046709d4e250086346a4

    • SHA1

      9536f9bc5e10128074cdd2597e970b29d44c4bcd

    • SHA256

      462e4f6c2647a8fffb7be6a37eca3dfef4051f9f20a5e8927b446d98d1af84f0

    • SHA512

      15cd09125122f6e79bffc9112ee888c4afef515d09a9598da2b23cbc240b043e63f1d3d6538c74fc56cd65eeeb756679f1a4d54dd74e0a026ba80a7999dff2ba

    • SSDEEP

      1536:EfDrLD7tmNEoCfjSbHb7RqWYZvZqF3c9MwsUSEJxY87d17:EHLD7Ewub70Wmy3VwQGxY87r7

    • Detect Xworm Payload

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • 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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks