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

    230803-tl51waeb94

  • MD5

    5c0dcf7166a4f2df85a42940f2fe249a

  • SHA1

    e0cdb7935aa4236eeeddcb2c0ffdc01f7d3ae0f3

  • SHA256

    c42553ebd2f1e93c7bb519eef352d11779c696413d8879f1911c34061afe2c98

  • SHA512

    c23153e53f0aeb88ab69ade579e86866b34d382363ed987cb74296bb53a2a2d3f68df9aec754dacc0bf5f51065cc9934bf7480f865bf792da914cec7100f82d7

  • SSDEEP

    49152:HvBuf2NUaNmwzPWlvdaKM7ZxTwDZRJ67bR3LoGd/k+THHB72eh2NT:Hvcf2NUaNmwzPWlvdaB7ZxTwDZRJ6N8

Score
10/10
quasarinfectedspywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Infected

C2

192.168.1.1:4782

192.168.1.66:4782

dark-crystal.at.ply.gg:4782
Mutex

ff410ede-beff-4970-8e12-7d251057f1fd

Attributes
  • encryption_key

    1B172706DED462B59F2A5056AB06A8DD1EE8491B

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Realtek Audio

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      5c0dcf7166a4f2df85a42940f2fe249a

    • SHA1

      e0cdb7935aa4236eeeddcb2c0ffdc01f7d3ae0f3

    • SHA256

      c42553ebd2f1e93c7bb519eef352d11779c696413d8879f1911c34061afe2c98

    • SHA512

      c23153e53f0aeb88ab69ade579e86866b34d382363ed987cb74296bb53a2a2d3f68df9aec754dacc0bf5f51065cc9934bf7480f865bf792da914cec7100f82d7

    • SSDEEP

      49152:HvBuf2NUaNmwzPWlvdaKM7ZxTwDZRJ67bR3LoGd/k+THHB72eh2NT:Hvcf2NUaNmwzPWlvdaB7ZxTwDZRJ6N8

    Score
    10/10
    quasarinfectedspywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Executes dropped EXE

    • Drops file in System32 directory

    behavioral1behavioral2

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

System Information Discovery

1
T1082

Remote System Discovery

1
T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks