General

  • Target

    MailUpdate.exe

  • Size

    93KB

  • Sample

    241004-rpcsdsshkb

  • MD5

    9269b1758a4151f9b49c11967ac76628

  • SHA1

    cdb7ede668e9f9b69950e29ca3e05b76daa1c0fc

  • SHA256

    abfcae799cbe35f002f71a15bea7e666654effbaa3a736a472beb98addb09c2d

  • SHA512

    0644e2fce92204f07172ecc7c36077784688c7c16cd97e121e8a0d3444c0c2507e765cb14b7421055731996de70de97785c518e60c3b4a2903bfc85496aefd32

  • SSDEEP

    768:GY3m84BMPdPwchQW6aGro1CRaXPKG548gmKXxrjEtCdnl2pi1Rz4Rk3ssGdpZgS7:s8GMlP6aGrwCCX4ljEwzGi1dDEDZgS

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

SooN

C2

hakim32.ddns.net:2000

83.10.131.145:6666

Mutex

b0eaaca670b21e14c7e7fc8a3127b33d

Attributes
  • reg_key

    b0eaaca670b21e14c7e7fc8a3127b33d

  • splitter

    |'|'|

Targets

    • Target

      MailUpdate.exe

    • Size

      93KB

    • MD5

      9269b1758a4151f9b49c11967ac76628

    • SHA1

      cdb7ede668e9f9b69950e29ca3e05b76daa1c0fc

    • SHA256

      abfcae799cbe35f002f71a15bea7e666654effbaa3a736a472beb98addb09c2d

    • SHA512

      0644e2fce92204f07172ecc7c36077784688c7c16cd97e121e8a0d3444c0c2507e765cb14b7421055731996de70de97785c518e60c3b4a2903bfc85496aefd32

    • SSDEEP

      768:GY3m84BMPdPwchQW6aGro1CRaXPKG548gmKXxrjEtCdnl2pi1Rz4Rk3ssGdpZgS7:s8GMlP6aGrwCCX4ljEwzGi1dDEDZgS

    • Disables Task Manager via registry modification

    • Modifies Windows Firewall

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • Executes dropped EXE

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks