Overview

overview

10

Static

static

10

0268b6f802...79.exe

windows7-x64

10

0268b6f802...79.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    0268b6f80286ff64286d42529c76f9e744932ca5a650b7e9ef2c3c0afc01af79

  • Size

    3.3MB

  • Sample

    240428-wsdlbadd76

  • MD5

    88daabfadfec7379a7b25ff1602dd7bd

  • SHA1

    65c3f35d7150df340ca797a2662437933178c9b5

  • SHA256

    0268b6f80286ff64286d42529c76f9e744932ca5a650b7e9ef2c3c0afc01af79

  • SHA512

    7a205e62c3608fcad774dea6384ae7da904a2ba090b9b6f30454bd23eab9f54a1dbaffd72c3534c554c468a5efaa90d75f659e74fdba3ee8581cbb9356c68aa2

  • SSDEEP

    49152:7vBt62XlaSFNWPjljiFa2RoUYI1bxNESEgk/iSLoGdDTHHB72eh2NT:7vr62XlaSFNWPjljiFXRoUYIJxbc

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

192.168.12.185:4782

Mutex

15144cdb-7c06-478d-9be3-8228cfe2eee6

Attributes
  • encryption_key

    5FCAB94261E1E836E0ECC532E93B636646535E65

  • install_name

    Conhost.exe

  • log_directory

    Scex

  • reconnect_delay

    3000

  • startup_key

    Google Chrome

  • subdirectory

    SubDir

Targets

    • Target

      0268b6f80286ff64286d42529c76f9e744932ca5a650b7e9ef2c3c0afc01af79

    • Size

      3.3MB

    • MD5

      88daabfadfec7379a7b25ff1602dd7bd

    • SHA1

      65c3f35d7150df340ca797a2662437933178c9b5

    • SHA256

      0268b6f80286ff64286d42529c76f9e744932ca5a650b7e9ef2c3c0afc01af79

    • SHA512

      7a205e62c3608fcad774dea6384ae7da904a2ba090b9b6f30454bd23eab9f54a1dbaffd72c3534c554c468a5efaa90d75f659e74fdba3ee8581cbb9356c68aa2

    • SSDEEP

      49152:7vBt62XlaSFNWPjljiFa2RoUYI1bxNESEgk/iSLoGdDTHHB72eh2NT:7vr62XlaSFNWPjljiFXRoUYIJxbc

    Score
    10/10
    quasaroffice04spywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Detects Windows executables referencing non-Windows User-Agents

    • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

    • Detects executables containing common artifacts observed in infostealers

    • 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

Query Registry

1
T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks