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
  • Sample230705-s263fafa9t
  • SHA256 9b932ec18b77f382f653403b6a4a2fcf463c5e5d691f689dc3ad68e420840b26
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
office04quasar

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Office04

C2

  • 192.168.56.1:4782

  • 93.35.198.71:4782

Mutex

  • 63eac64e-75b2-49ce-8a2e-3d1114815132

Attributes
  • encryption_key

    4C728E4D527117B7094ADC3922AFF7A3BF47EF70

  • install_name

    WinSysUpdate.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    WinSysAnalisis

Signatures

  • Quasar family
    quasar
  • Quasar payload 1 IoCs
  • Unsigned PE 1 IoCs

    Checks for missing Authenticode signature.

File Explorer

  • Client-built.exe
    .exe 3.1MB

Client-built.exe

  • IMPHASH f34d5f2d4577ed6d9ceec516c1f5a744
  • SHA256 9b932ec18b77f382f653403b6a4a2fcf463c5e5d691f689dc3ad68e420840b26
  • MD5 SHA1 SHA512 SSDEEP
windowsx86

  • Quasar payload

  • Unsigned PE

    Checks for missing Authenticode signature.

Minor OS version
Major OS version
Entry point
3269726
Magic Number
267
Subsystem
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_NX_COMPAT IMAGE_DLLCHARACTERISTICS_NO_SEH IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_32BIT_MACHINE
PDB paths