Overview

overview

10

Static

static

85e8b90842...54.exe

windows7_x64

10

85e8b90842...54.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    85e8b908422ff5433e4c955c4a2fc7ce8a620ad36fcc4eca6053ac5545ac2554

  • Size

    430KB

  • Sample

    220327-b5bl9sgbek

  • MD5

    af0433a407830ec84667a6362eed8a42

  • SHA1

    c54bb509f451fba6ca80c4d01691457fc3a1b750

  • SHA256

    85e8b908422ff5433e4c955c4a2fc7ce8a620ad36fcc4eca6053ac5545ac2554

  • SHA512

    9be32367bcafb5d695e7f31fa630ec01d763581852c38bef3c03a35c59187934ef968354884daf5ef889821a59adfd8f911bde841f638e2c36643f50d9828d0e

Score
10/10
quasar1127persistencespywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

1127

C2

devils.shacknet.us:4782

Mutex

QSR_MUTEX_H4ekUmBSgCWszBiPWN

Attributes
  • encryption_key

    tgW5GJ07giRPamWPjP4J

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      85e8b908422ff5433e4c955c4a2fc7ce8a620ad36fcc4eca6053ac5545ac2554

    • Size

      430KB

    • MD5

      af0433a407830ec84667a6362eed8a42

    • SHA1

      c54bb509f451fba6ca80c4d01691457fc3a1b750

    • SHA256

      85e8b908422ff5433e4c955c4a2fc7ce8a620ad36fcc4eca6053ac5545ac2554

    • SHA512

      9be32367bcafb5d695e7f31fa630ec01d763581852c38bef3c03a35c59187934ef968354884daf5ef889821a59adfd8f911bde841f638e2c36643f50d9828d0e

    Score
    10/10
    quasar1127persistencespywaretrojan

    • Quasar Payload

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Checks computer location settings

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

    • 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 v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

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

Tasks