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Overview

overview

10

Static

static

10

bKJ7.exe

windows7-x64

10

bKJ7.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    bKJ7.exe

  • Size

    348KB

  • Sample

    230323-ckj9cach88

  • MD5

    7f515d05fb17932adbbcbd0c2aba18f1

  • SHA1

    9220c765e0dd0e7fa30af6823f3f382ef12a5dde

  • SHA256

    39dd5339fa37de30a494a9995744facb01ed2ed446d8c2041d4817000ee8f357

  • SHA512

    73e627f18d47eaa94151b40a4c3977985faef9196f78a070f22b1df61c5d849f549d81c1c57b48e17bb5b7544e650b21000aab307d8235f2f0486e2174a1d8f2

  • SSDEEP

    6144:kg6bPXhLApfpvKhECGiwru41w8wbfb3EA+6sq5FLT4rN6:9mhApdKhEC8SOw8aQRCFLTo6

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

Office04

C2

myhost88.ddns.net:4782

Mutex

QSR_MUTEX_kTcfswfSj43R2vlOKd

Attributes
  • encryption_key

    QnUpxbEUVKL7JTeQ1Sc5

  • install_name

    ms configs.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    ms configs

  • subdirectory

    SubDir

Targets

    • Target

      bKJ7.exe

    • Size

      348KB

    • MD5

      7f515d05fb17932adbbcbd0c2aba18f1

    • SHA1

      9220c765e0dd0e7fa30af6823f3f382ef12a5dde

    • SHA256

      39dd5339fa37de30a494a9995744facb01ed2ed446d8c2041d4817000ee8f357

    • SHA512

      73e627f18d47eaa94151b40a4c3977985faef9196f78a070f22b1df61c5d849f549d81c1c57b48e17bb5b7544e650b21000aab307d8235f2f0486e2174a1d8f2

    • SSDEEP

      6144:kg6bPXhLApfpvKhECGiwru41w8wbfb3EA+6sq5FLT4rN6:9mhApdKhEC8SOw8aQRCFLTo6

    Score
    10/10
    quasaroffice04spywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Executes dropped EXE

    • Loads dropped DLL

    • 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 v6

Tasks