General

  • Target

    ed4bc220dc7e794b4cff4de584fd83bc40de6020bf7c4303c7a53fcced517db0

  • Size

    1.4MB

  • Sample

    230802-adjywsda3t

  • MD5

    692e125b789fd577c27f3d7d137cc3b5

  • SHA1

    272c3b358170653b2d6f948742fac4b7ae4ba40d

  • SHA256

    ed4bc220dc7e794b4cff4de584fd83bc40de6020bf7c4303c7a53fcced517db0

  • SHA512

    5ddbd84f43df2cf1c5b7ed846c17fee7ade6f3b99c6b4ffb7b430155016128ef1ab3c840d01a16678a46ef291ff4fe07e59a15b94fe2ca649b5377fb209a0c97

  • SSDEEP

    24576:U2G/nvxW3Ww0tRp8GiXTBhq7yRDvHcUcjUvy0lr3Tl6icOB/UWoT:UbA30H4zF0UMSAicOB/UWk

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

-

C2

94.131.105.161:12344

Mutex

QSR_MUTEX_UEgITWnMKnRP3EZFzK

Attributes
  • encryption_key

    5Q0JQBQQfAUHRJTcAIOF

  • install_name

    lient.exe

  • log_directory

    Lugs

  • reconnect_delay

    3000

  • startup_key

    itartup

  • subdirectory

    SubDir

Targets

    • Target

      ed4bc220dc7e794b4cff4de584fd83bc40de6020bf7c4303c7a53fcced517db0

    • Size

      1.4MB

    • MD5

      692e125b789fd577c27f3d7d137cc3b5

    • SHA1

      272c3b358170653b2d6f948742fac4b7ae4ba40d

    • SHA256

      ed4bc220dc7e794b4cff4de584fd83bc40de6020bf7c4303c7a53fcced517db0

    • SHA512

      5ddbd84f43df2cf1c5b7ed846c17fee7ade6f3b99c6b4ffb7b430155016128ef1ab3c840d01a16678a46ef291ff4fe07e59a15b94fe2ca649b5377fb209a0c97

    • SSDEEP

      24576:U2G/nvxW3Ww0tRp8GiXTBhq7yRDvHcUcjUvy0lr3Tl6icOB/UWoT:UbA30H4zF0UMSAicOB/UWk

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Modifies Windows Firewall

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • 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