Overview

overview

10

Static

static

10

AV FIXER.exe

windows10-2004-x64

10

AV FIXER.exe

windows11-21h2-x64

10

Sharing

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General

  • Target

    AV FIXER.exe

  • Size

    3.1MB

  • Sample

    240805-qw7exa1fle

  • MD5

    29c618fbaa5fa24da18b48a2306721b9

  • SHA1

    f190122676be18afa49451f2dc8b8449465688f2

  • SHA256

    74a9841b730fbf433d0211236e50edd1d16cd13b673327e2c120c8aa226157c2

  • SHA512

    ae7a808e561c639f14a5c1ab2081f652a94d27c5780c40dc388575a0dc014f7d24fb70090e2f3b833d76397b5b36e150ffd62f982e3d827da0b0ec9056ef94c1

  • SSDEEP

    49152:bv5uf2NUaNmwzPWlvdaKM7ZxTwCwhi3Bxm3oGdJmTHHB72eh2NT:bvUf2NUaNmwzPWlvdaB7ZxTw3ii5

Score
10/10
quasarav fixerspywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

AV FIXER

C2

192.168.0.120:4782

192.168.0.120:4781

90.221.139.200:4781
Mutex

f6eba3c7-0450-46fd-9e50-73b69dec25b9

Attributes
  • encryption_key

    F8FE1BE15C2DA60FFAB39E3418D9330FC7991F1C

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Epic Games

  • subdirectory

    SubDir

Targets

    • Target

      AV FIXER.exe

    • Size

      3.1MB

    • MD5

      29c618fbaa5fa24da18b48a2306721b9

    • SHA1

      f190122676be18afa49451f2dc8b8449465688f2

    • SHA256

      74a9841b730fbf433d0211236e50edd1d16cd13b673327e2c120c8aa226157c2

    • SHA512

      ae7a808e561c639f14a5c1ab2081f652a94d27c5780c40dc388575a0dc014f7d24fb70090e2f3b833d76397b5b36e150ffd62f982e3d827da0b0ec9056ef94c1

    • SSDEEP

      49152:bv5uf2NUaNmwzPWlvdaKM7ZxTwCwhi3Bxm3oGdJmTHHB72eh2NT:bvUf2NUaNmwzPWlvdaB7ZxTw3ii5

    Score
    10/10
    quasarav fixerspywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Executes dropped EXE

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks