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Overview

overview

10

Static

static

3

c58cc6410d...2d.exe

windows7-x64

10

c58cc6410d...2d.exe

windows10-2004-x64

8

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General

  • Target

    c58cc6410dfc930c70caded805f88e2d.exe

  • Size

    1.4MB

  • Sample

    230801-mzjapsfc95

  • MD5

    c58cc6410dfc930c70caded805f88e2d

  • SHA1

    0367375fad04729c9f53b18436e08ff1fe76c153

  • SHA256

    295a185629cf9edf7bcdddd8cf1a68c95bb82f4debfad3f5540075feada42d85

  • SHA512

    8540fd3c97604837b15e0c3d498edc8b0acf3ee93aae95a753ac3fed6416b2e5273938bf0f134ef96bcb9a0cfec16ab7a452865e36abeb0e43d6d096cbbba065

  • SSDEEP

    24576:U2G/nvxW3Ww0tRp8GiXTBhq7yRDvHcUcjUvy0lr3Tl6icOB/UWoT:UbA30H4zF0UMSAicOB/UWk

Score
10/10
quasar-evasionpersistencespywaretrojanupx

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

      c58cc6410dfc930c70caded805f88e2d.exe

    • Size

      1.4MB

    • MD5

      c58cc6410dfc930c70caded805f88e2d

    • SHA1

      0367375fad04729c9f53b18436e08ff1fe76c153

    • SHA256

      295a185629cf9edf7bcdddd8cf1a68c95bb82f4debfad3f5540075feada42d85

    • SHA512

      8540fd3c97604837b15e0c3d498edc8b0acf3ee93aae95a753ac3fed6416b2e5273938bf0f134ef96bcb9a0cfec16ab7a452865e36abeb0e43d6d096cbbba065

    • SSDEEP

      24576:U2G/nvxW3Ww0tRp8GiXTBhq7yRDvHcUcjUvy0lr3Tl6icOB/UWoT:UbA30H4zF0UMSAicOB/UWk

    Score
    10/10
    quasar-evasionpersistencespywaretrojanupx

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Modifies Windows Firewall

      evasion

    • 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.

      upx

    • Unexpected DNS network traffic destination

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

    • Adds Run key to start application

      persistence

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks