Overview

overview

10

Static

static

3

6f6808e54c...c1.exe

windows10-2004-x64

10

6f6808e54c...c1.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    6f6808e54c3e64600cd5db290816a44a2f579a538961175bf1f81b9f48d4a8c1
  • Size 3.0MB
  • Sample260711-taqf2set7j
  • SHA256 6f6808e54c3e64600cd5db290816a44a2f579a538961175bf1f81b9f48d4a8c1
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
quasaroffice04executionpersistencespywaretrojan

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.6

Botnet

  • Office04

C2

  • 185.139.214.222:4782

Mutex

  • b175ac05-4ef5-49e8-af7e-c78388c8ddcc

Attributes
  • encryption_key

    4C67471BE88DD63DB2466621FE9E2A2D848F5B79

  • install_name

    svchost.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Svchost Startup

  • subdirectory

    SubDir

Targets

    • Target
      6f6808e54c3e64600cd5db290816a44a2f579a538961175bf1f81b9f48d4a8c1
    • Size 3.0MB
    • SHA256 6f6808e54c3e64600cd5db290816a44a2f579a538961175bf1f81b9f48d4a8c1
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    office04executionquasarpersistencespywaretrojan

    • Family: Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Executes dropped EXE

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks