Overview

overview

10

Static

static

3

783dde94a3...18.exe

windows7-x64

10

783dde94a3...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    783dde94a3c4fdad4663bc9e370e9de8_JaffaCakes118

  • Size

    610KB

  • Sample

    240527-hja7yacc73

  • MD5

    783dde94a3c4fdad4663bc9e370e9de8

  • SHA1

    262fa6fe51d779ae988d6b99ac8ee37d71c75064

  • SHA256

    19f0abf0648c4c993b02b50b4e35224b64ff45b9748dd9dc36c68cf1b42dcbdd

  • SHA512

    a41f2f23272e55d9b275f868439758618f96c30fe47fd433431b07322f135fcbba3c43be199aba86160abe5e362e44ce9aa862bbf48cd0a33b716b278ec565b8

  • SSDEEP

    12288:KU+xqEiGfCnAUfyg1Dv1wH/umXwyTWlxHsgL7A26:TETCnX5Dv+bhTWlxH1L

Score
10/10
quasarvenomratsvhostevasionratrootkitspywarestealertrojan

Malware Config

Extracted

Family

quasar

Version

2.1.0.0

Botnet

svhost

C2

myconect.ddns.net:6606

Mutex

VNM_MUTEX_rHOHbrAQKctPD4d68w

Attributes
  • encryption_key

    rDFwhCyuKMqXO7llDpB2

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Venom Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      783dde94a3c4fdad4663bc9e370e9de8_JaffaCakes118

    • Size

      610KB

    • MD5

      783dde94a3c4fdad4663bc9e370e9de8

    • SHA1

      262fa6fe51d779ae988d6b99ac8ee37d71c75064

    • SHA256

      19f0abf0648c4c993b02b50b4e35224b64ff45b9748dd9dc36c68cf1b42dcbdd

    • SHA512

      a41f2f23272e55d9b275f868439758618f96c30fe47fd433431b07322f135fcbba3c43be199aba86160abe5e362e44ce9aa862bbf48cd0a33b716b278ec565b8

    • SSDEEP

      12288:KU+xqEiGfCnAUfyg1Dv1wH/umXwyTWlxHsgL7A26:TETCnX5Dv+bhTWlxH1L

    Score
    10/10
    quasarvenomratsvhostevasionratrootkitspywarestealertrojan

    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Modifies Windows Defender Real-time Protection settings

      evasiontrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • VenomRAT

      VenomRAT is a modified version of QuasarRAT with some added features, such as rootkit and stealer capabilites.

      ratrootkitstealervenomrat

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Windows security modification

      evasiontrojan

    • 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 Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1
T1053

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Scheduled Task/Job

1
T1053

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

2
T1112

Impair Defenses

2
T1562

Disable or Modify Tools

2
T1562.001

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Remote System Discovery

1
T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks