Overview

overview

10

Static

static

3

1b465c6989...18.exe

windows7-x64

10

1b465c6989...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    1b465c6989637df1d5c511919c43e457_JaffaCakes118

  • Size

    861KB

  • Sample

    240329-hhm54sce25

  • MD5

    1b465c6989637df1d5c511919c43e457

  • SHA1

    317f8bf5133176cd0f4125c6f2f0fdfc226754ab

  • SHA256

    0b196e6b27ed15410bd946b1ccfd1de6b7af64a540cd0226b8eb9bd742d1b095

  • SHA512

    e9dfd465ee22ebf67a73fdd873440d73f013b064e2a4aff3aedad2c5bd1b3027284af7912a383ad6c0a91ef8caad2b3c69cdfd29edb638563d89fd7e89e114dc

  • SSDEEP

    24576:nc6zD+4oOZ34MRxbnCiZXsqK+eHTesb/hyDVeb:5D+NOZoax7CSX/g

Score
10/10
quasarvenomratoffice04evasionratrootkitspywarestealertrojan

Malware Config

Extracted

Family

quasar

Version

2.1.0.0

Botnet

Office04

C2

grace.adds-only.xyz:1609

Mutex

VNM_MUTEX_c2q7y2ayYutZ2XaYe7

Attributes
  • encryption_key

    wHq4o3k6UfKZv19jkcxs

  • install_name

    winrara.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Venom Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      1b465c6989637df1d5c511919c43e457_JaffaCakes118

    • Size

      861KB

    • MD5

      1b465c6989637df1d5c511919c43e457

    • SHA1

      317f8bf5133176cd0f4125c6f2f0fdfc226754ab

    • SHA256

      0b196e6b27ed15410bd946b1ccfd1de6b7af64a540cd0226b8eb9bd742d1b095

    • SHA512

      e9dfd465ee22ebf67a73fdd873440d73f013b064e2a4aff3aedad2c5bd1b3027284af7912a383ad6c0a91ef8caad2b3c69cdfd29edb638563d89fd7e89e114dc

    • SSDEEP

      24576:nc6zD+4oOZ34MRxbnCiZXsqK+eHTesb/hyDVeb:5D+NOZoax7CSX/g

    Score
    10/10
    quasarvenomratoffice04evasionratrootkitspywarestealertrojan

    • 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.

    • 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.

    • Suspicious use of SetThreadContext

    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