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

    240630-vbbjysthkp

  • MD5

    4f56c5c10fd6d558874a09e5d4dbdffd

  • SHA1

    5b9692b0cfc0da65752a7c6e98528a49ef1b17b9

  • SHA256

    0a1af9ad6684d877f7c58b00bec90875ccfd709f547fe396a87a9c26e881977b

  • SHA512

    699ff682370ee44a41af76686435f41682910d1291fbe159570f51e1aed05331dfce20074b3d5cd5937dfe6a8db651f8a4f320b4bf2fe2f38d585b8d4b95c8b4

  • SSDEEP

    49152:GvnI22SsaNYfdPBldt698dBcjHnKmmmmzzRoGdJCTHHB72eh2NT:GvI22SsaNYfdPBldt6+dBcjHKmmh

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

86.137.1.84:4782

Mutex

adc301f6-35ca-4636-b286-ad2aef63f877

Attributes
  • encryption_key

    54B7AB1A151267275EF24D335CE7E3B6ABDDC53E

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Microsoft Launcher Task Manager

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      4f56c5c10fd6d558874a09e5d4dbdffd

    • SHA1

      5b9692b0cfc0da65752a7c6e98528a49ef1b17b9

    • SHA256

      0a1af9ad6684d877f7c58b00bec90875ccfd709f547fe396a87a9c26e881977b

    • SHA512

      699ff682370ee44a41af76686435f41682910d1291fbe159570f51e1aed05331dfce20074b3d5cd5937dfe6a8db651f8a4f320b4bf2fe2f38d585b8d4b95c8b4

    • SSDEEP

      49152:GvnI22SsaNYfdPBldt698dBcjHnKmmmmzzRoGdJCTHHB72eh2NT:GvI22SsaNYfdPBldt6+dBcjHKmmh

    Score
    10/10
    quasaroffice04spywaretrojan

    • 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

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

Discovery

System Information Discovery

2
T1082

Query Registry

2
T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks