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

    240428-j5c44abe54

  • MD5

    097eec89ec840e8f2e890a9cb41b2983

  • SHA1

    c46aa81075914a866780001279675aaf5395c03f

  • SHA256

    0736d6fa83f88e7a56df19cbefd55f4f2682226e1c1cb3c3e0f6c5bd83540090

  • SHA512

    651738f346c59a62ccbcbcf1563f4f96ee5f5e8972f5b682456d41ca8c6e836a9b787a5b469f7f34c0c1e0c2b0fd07ec8854a87916d3a66c1d722200738a5784

  • SSDEEP

    49152:HvyI22SsaNYfdPBldt698dBcjHEaQCqtartsoGdhxTHHB72eh2NT:Hvf22SsaNYfdPBldt6+dBcjHd5q3

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

192.168.0.1:4782

Mutex

2c766987-d059-4668-905b-908787584195

Attributes
  • encryption_key

    5B2F491201B58C5D6C2FB166A5DF25805A921994

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      Client-built.exe

    • Size

      3.1MB

    • MD5

      097eec89ec840e8f2e890a9cb41b2983

    • SHA1

      c46aa81075914a866780001279675aaf5395c03f

    • SHA256

      0736d6fa83f88e7a56df19cbefd55f4f2682226e1c1cb3c3e0f6c5bd83540090

    • SHA512

      651738f346c59a62ccbcbcf1563f4f96ee5f5e8972f5b682456d41ca8c6e836a9b787a5b469f7f34c0c1e0c2b0fd07ec8854a87916d3a66c1d722200738a5784

    • SSDEEP

      49152:HvyI22SsaNYfdPBldt698dBcjHEaQCqtartsoGdhxTHHB72eh2NT:Hvf22SsaNYfdPBldt6+dBcjHd5q3

    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

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks