Overview

overview

10

Static

static

10

65ff539e02...c4.exe

windows7-x64

10

65ff539e02...c4.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    65ff539e02c7cd85a96be341b2694b52b5258caecdaa603af9f280934c3cdac4.exe
  • Size 3.1MB
  • Sample240314-cxdmbsaf49
  • SHA256 65ff539e02c7cd85a96be341b2694b52b5258caecdaa603af9f280934c3cdac4
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
office04quasar

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Office04

C2

  • 118.195.235.103:4782

Mutex

  • 71dd960d-f68a-4c48-b005-1abc3acf8e9b

Attributes
  • encryption_key

    87D90725875D825BD5FEC46A2A0B3CE8E2716E58

  • install_name

    Windows 任务的主机进程.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Windows 驱动程序基础 - 用户模式驱动程序框架主机进程

  • subdirectory

    SubDir

Signatures

  • Detects Windows executables referencing non-Windows User-Agents 1 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
  • Detects executables containing common artifacts observed in infostealers 1 IoCs
  • Quasar family
    quasar
  • Quasar payload 1 IoCs
  • Unsigned PE 1 IoCs

    Checks for missing Authenticode signature.

File Explorer

  • 65ff539e02c7cd85a96be341b2694b52b5258caecdaa603af9f280934c3cdac4.exe
    .exe 3.1MB

65ff539e02c7cd85a96be341b2694b52b5258caecdaa603af9f280934c3cdac4.exe

  • IMPHASH f34d5f2d4577ed6d9ceec516c1f5a744
  • SHA256 65ff539e02c7cd85a96be341b2694b52b5258caecdaa603af9f280934c3cdac4
  • MD5 SHA1 SHA512 SSDEEP
windows:4windowsx86arch:x86

  • 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

  • Quasar payload

  • Unsigned PE

    Checks for missing Authenticode signature.

Minor OS version
0
Major OS version
4
Entry point
3269790
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