General

  • Target

    92e30c1d1af9a3625f9f7f149859d84c414d1b9e1bf97177569ae26c15115f52

  • Size

    1.4MB

  • Sample

    230801-shlbmagg59

  • MD5

    b8f67fa0aed04b2b4f45fc8d20ffd4ee

  • SHA1

    13fa9f47d4520849cabe2ad8620e8c00f1b1b3b2

  • SHA256

    92e30c1d1af9a3625f9f7f149859d84c414d1b9e1bf97177569ae26c15115f52

  • SHA512

    8075029e4639420901265be97152758978bca76020f917c13257f6131d680d9e99bb9317a4b079e127860cf430f129a7f103f2572097988966c02a891f3cca51

  • 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

      92e30c1d1af9a3625f9f7f149859d84c414d1b9e1bf97177569ae26c15115f52

    • Size

      1.4MB

    • MD5

      b8f67fa0aed04b2b4f45fc8d20ffd4ee

    • SHA1

      13fa9f47d4520849cabe2ad8620e8c00f1b1b3b2

    • SHA256

      92e30c1d1af9a3625f9f7f149859d84c414d1b9e1bf97177569ae26c15115f52

    • SHA512

      8075029e4639420901265be97152758978bca76020f917c13257f6131d680d9e99bb9317a4b079e127860cf430f129a7f103f2572097988966c02a891f3cca51

    • 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.

    • Executes dropped EXE

    • Loads dropped DLL

    • 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