Overview

overview

10

Static

static

10

Client-built.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    230926-yqscsseg86

  • MD5

    84196815c135e19db65295a1cea9a522

  • SHA1

    fc46f3972ad6280b17e27f3ff519c2b7d035370f

  • SHA256

    e9a6cd9f0b02d2718b18c784014ffe3ece170196ade1bfed7ecad721349784e8

  • SHA512

    3be5c58de337af4f9da7206316f29ab42ba6e43129bac71580f055ce37a84995d137f3e921caa535330a8b90941a574b1d23d57996373a74376426b0d07c3070

  • SSDEEP

    49152:7vWhBYjCO4Dt2d5aKCuVPzlEmVQL0wvwkaYiRJ6TbR3LoGdjTHHB72eh2NT:7v4t2d5aKCuVPzlEmVQ0wvwfYiRJ6F

Score
10/10
quasarslavespywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

slave

C2

cherrywoods-29890.portmap.host:29890:16243

Mutex

5d49d039-8bce-40c5-82b6-413e6ca1279a

Attributes
  • encryption_key

    2E34CBDFC0A612A970A99A781D3AB0C010E1A59C

  • install_name

    cvvhost.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Windows Security notification icon

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      84196815c135e19db65295a1cea9a522

    • SHA1

      fc46f3972ad6280b17e27f3ff519c2b7d035370f

    • SHA256

      e9a6cd9f0b02d2718b18c784014ffe3ece170196ade1bfed7ecad721349784e8

    • SHA512

      3be5c58de337af4f9da7206316f29ab42ba6e43129bac71580f055ce37a84995d137f3e921caa535330a8b90941a574b1d23d57996373a74376426b0d07c3070

    • SSDEEP

      49152:7vWhBYjCO4Dt2d5aKCuVPzlEmVQL0wvwkaYiRJ6TbR3LoGdjTHHB72eh2NT:7v4t2d5aKCuVPzlEmVQ0wvwfYiRJ6F

    Score
    10/10
    quasarslavespywaretrojan

    • 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

    • Drops file in System32 directory

    behavioral1

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Defense Evasion

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Remote System Discovery

1
T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks