Overview

overview

10

Static

static

10

Client-built.exe

windows7-x64

10

Client-built.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    240614-g29yjssark

  • MD5

    e9ae93609972ffe5da8353a5e3801d09

  • SHA1

    425e18db24e72cb393c29a554c13672418912ba6

  • SHA256

    7d4360572b15734e1a337f5ec11ce5d27f3fe0da3b308b5f6a4f52c4c6ede872

  • SHA512

    3a1ec7883cbc7f9a0f2cc9f53636daa0cac9807e780de4f61ca64932b43393f8037300fbdc9ae9d5a0cffb9deae277c3383c512bae9dead2c78148aaa5c392cb

  • SSDEEP

    98304:bT7SuS4j2WraxltyP5luXS/A5dosZYUf:vDKoGf

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

nexosmith1231-54169.portmap.host:54169

Mutex

9f17952a-b25a-4031-a022-58a4fb4b7f0b

Attributes
  • encryption_key

    57AD3106034C3A8FFC913D430F88F63E17B5BC5D

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      e9ae93609972ffe5da8353a5e3801d09

    • SHA1

      425e18db24e72cb393c29a554c13672418912ba6

    • SHA256

      7d4360572b15734e1a337f5ec11ce5d27f3fe0da3b308b5f6a4f52c4c6ede872

    • SHA512

      3a1ec7883cbc7f9a0f2cc9f53636daa0cac9807e780de4f61ca64932b43393f8037300fbdc9ae9d5a0cffb9deae277c3383c512bae9dead2c78148aaa5c392cb

    • SSDEEP

      98304:bT7SuS4j2WraxltyP5luXS/A5dosZYUf:vDKoGf

    Score
    10/10
    quasaroffice04spywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Checks computer location settings

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

    • Executes dropped EXE

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Remote System Discovery

1
T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks