Overview

overview

10

Static

static

10

Cl1ient-built.exe

windows7-x64

10

Cl1ient-built.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    Cl1ient-built.exe

  • Size

    3.1MB

  • Sample

    240628-ha681sybrr

  • MD5

    00cac0e352ee5c12911f4eb29a34deac

  • SHA1

    1bb09225aa309fc793e1eb27faa1ff8b1ccf9e50

  • SHA256

    8b5341639e104df91c0dcbd5cec78286fa9b0fae7d19b637f3a11b93b48b655f

  • SHA512

    9c7c0b55e794132a0d1a624a4326e33bbeedbac18f3af984cb3f6f81b6e4d534b63de23f027436eb85fdc40c1f4d8ccf1bd991b27e6303b35c975c78a4daa839

  • SSDEEP

    49152:PvDI22SsaNYfdPBldt698dBcjHaLPnVjoGdhHTHHB72eh2NT:Pv822SsaNYfdPBldt6+dBcjHaTntx

Score
10/10
quasaroffice04spywarestealertrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

amount-socket.gl.at.ply.gg:29643

Mutex

9bda9817-7d07-49e7-92d5-dcaf6b89216c

Attributes
  • encryption_key

    31B6B433E91FDBAAD05B632B163CCF988D67E433

  • install_name

    system.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    svc

  • subdirectory

    SubDir

Targets

    • Target

      Cl1ient-built.exe

    • Size

      3.1MB

    • MD5

      00cac0e352ee5c12911f4eb29a34deac

    • SHA1

      1bb09225aa309fc793e1eb27faa1ff8b1ccf9e50

    • SHA256

      8b5341639e104df91c0dcbd5cec78286fa9b0fae7d19b637f3a11b93b48b655f

    • SHA512

      9c7c0b55e794132a0d1a624a4326e33bbeedbac18f3af984cb3f6f81b6e4d534b63de23f027436eb85fdc40c1f4d8ccf1bd991b27e6303b35c975c78a4daa839

    • SSDEEP

      49152:PvDI22SsaNYfdPBldt698dBcjHaLPnVjoGdhHTHHB72eh2NT:Pv822SsaNYfdPBldt6+dBcjHaTntx

    Score
    10/10
    quasaroffice04spywaretrojanstealer

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Executes dropped EXE

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

      spywarestealer

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

1
T1552.001

Credentials in Registry

1
T1552.002

Discovery

System Information Discovery

1
T1082

Query Registry

1
T1012

Lateral Movement

Collection

Data from Local System

2
T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks