Overview

overview

10

Static

static

3

666fbcded6...18.exe

windows7-x64

10

666fbcded6...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    666fbcded6f5f768d1c433710bdfb97a_JaffaCakes118

  • Size

    604KB

  • Sample

    240522-h2g37sfh69

  • MD5

    666fbcded6f5f768d1c433710bdfb97a

  • SHA1

    05f5c8ae533b83759c44563e4ec9bd5f352ba52b

  • SHA256

    ab5ac2f957bb8b1f6a9091d6da58f1afb57a15553bad1434020f3ef26b1063af

  • SHA512

    b2a7b1a6637fd974decb7c31362084c2ded234cec2301dfc5275b295802f98ac77c1e64c1eedaf9acce2168795b4f5cfc7da899734f57ef38bbcf688a295424b

  • SSDEEP

    12288:nX7OBZwbZsAiaFyzppofiZu5+5urMBgkS9UOIK:mZw1B8zpYiw5wOMCkSuOIK

Score
10/10
quasaroffice04persistencespywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

Office04

C2

192.168.0.35:6969

Mutex

QSR_MUTEX_A682BosRnRdjNjsQHf

Attributes
  • encryption_key

    kmHPXJ9zDF9KCDBwlFlP

  • install_name

    hello.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    WindowStartup

  • subdirectory

    SubDir

Targets

    • Target

      666fbcded6f5f768d1c433710bdfb97a_JaffaCakes118

    • Size

      604KB

    • MD5

      666fbcded6f5f768d1c433710bdfb97a

    • SHA1

      05f5c8ae533b83759c44563e4ec9bd5f352ba52b

    • SHA256

      ab5ac2f957bb8b1f6a9091d6da58f1afb57a15553bad1434020f3ef26b1063af

    • SHA512

      b2a7b1a6637fd974decb7c31362084c2ded234cec2301dfc5275b295802f98ac77c1e64c1eedaf9acce2168795b4f5cfc7da899734f57ef38bbcf688a295424b

    • SSDEEP

      12288:nX7OBZwbZsAiaFyzppofiZu5+5urMBgkS9UOIK:mZw1B8zpYiw5wOMCkSuOIK

    Score
    10/10
    quasaroffice04persistencespywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Executes dropped EXE

    • Loads dropped DLL

    • 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.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks