Overview

overview

10

Static

static

10

Client-built.exe

windows11-21h2-x64

10

Sharing

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General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • Sample

    240421-as792aea99

  • MD5

    fbf8bf1a542094f980a0ebadf0cd0331

  • SHA1

    d92f0eb94e1d7bccf4e3512ed61d769720d425d7

  • SHA256

    fa281523c8726d55023091c15321edca91ad7e480d0b0bb1f381e94861a84383

  • SHA512

    7107265fc94a19abaf05b09c28c4c3482add48d863f30b3d3b9bda096968f9923e8a28ef8f63b7f709e6d0ef45a564fb841ebd59df421f1cb0b13f7ff3179290

  • SSDEEP

    49152:Wvkt62XlaSFNWPjljiFa2RoUYIYCF1JaLoGdTTHHB72eh2NT:Wv462XlaSFNWPjljiFXRoUYIYC2

Score
10/10
quasarslavespywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

SLAVE

C2

uk2.localto.net:39077

Mutex

cc0a2b76-665e-4e16-b318-5ee02270fbcd

Attributes
  • encryption_key

    D7F09F1F0B9CECC640BA0B3D8975FBE5CED725B5

  • install_name

    UpdateHost.exe

  • log_directory

    Error Logs

  • reconnect_delay

    3000

  • startup_key

    WOS64

  • subdirectory

    Windows

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      fbf8bf1a542094f980a0ebadf0cd0331

    • SHA1

      d92f0eb94e1d7bccf4e3512ed61d769720d425d7

    • SHA256

      fa281523c8726d55023091c15321edca91ad7e480d0b0bb1f381e94861a84383

    • SHA512

      7107265fc94a19abaf05b09c28c4c3482add48d863f30b3d3b9bda096968f9923e8a28ef8f63b7f709e6d0ef45a564fb841ebd59df421f1cb0b13f7ff3179290

    • SSDEEP

      49152:Wvkt62XlaSFNWPjljiFa2RoUYIYCF1JaLoGdTTHHB72eh2NT:Wv462XlaSFNWPjljiFXRoUYIYC2

    Score
    10/10
    quasarslavespywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Executes dropped EXE

    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

System Information Discovery

1
T1082

Remote System Discovery

1
T1018

Query Registry

1
T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks