Overview

overview

10

Static

static

10

Client-built.exe

windows11-ltsc_2024-x64

10

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General

  • Target
    Client-built.exe
  • Size 3.1MB
  • Sample261102-ahff9sd15x
  • SHA256 89482b6f85e2e9217c13c7025057dc417c173c37f10cc17a2ac921c17ad70259
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
office04trojanspywarequasar

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Office04

C2

  • 10.127.0.114:4782

Mutex

  • 9c1cdb10-f105-4592-8641-41a39eaf055c

Attributes
  • encryption_key

    90569FAB3EA9928EAA9FBF97BF0221521884B7B5

  • install_name

    ConHostUTIL.exe

  • key_salt

    bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941

  • log_directory

    utilcon

  • reconnect_delay

    3000

  • startup_key

    conhost

  • subdirectory

    conhostutil

Signatures

  • Family: Quasar RAT

    Quasar is an open source Remote Access Tool.

    trojanspywarequasar
  • 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 89482b6f85e2e9217c13c7025057dc417c173c37f10cc17a2ac921c17ad70259
  • MD5 SHA1 SHA512 SSDEEP TLSH
windows:4windowsx86arch:x86

  • Quasar payload

  • Unsigned PE

    Checks for missing Authenticode signature.

Minor OS version
0
Major OS version
4
Entry point
3269614
Magic Number
267
Subsystem
IMAGE_SUBSYSTEM_WINDOWS_GUI
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