Overview

overview

10

Static

static

10

a841a1fe8b...18.exe

windows7-x64

10

a841a1fe8b...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    a841a1fe8b81516cb7d07d1bf57d663a26ce360e61f2f90c9dc046e9280bd318.exe
  • Size 3.1MB
  • Sample240319-c7debafc99
  • SHA256 a841a1fe8b81516cb7d07d1bf57d663a26ce360e61f2f90c9dc046e9280bd318
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
office04quasar

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Office04

C2

  • gjhfhgdg.insane.wang:3634

Mutex

  • 5943d26f-e34d-4af2-bb6f-9aa3b1840ec8

Attributes
  • encryption_key

    997411AC284CD97048B61F90B41B906864F1171B

  • install_name

    dfsdff.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    windows defender process

  • subdirectory

    fsfsf

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

  • a841a1fe8b81516cb7d07d1bf57d663a26ce360e61f2f90c9dc046e9280bd318.exe
    .exe 3.1MB

a841a1fe8b81516cb7d07d1bf57d663a26ce360e61f2f90c9dc046e9280bd318.exe

  • IMPHASH f34d5f2d4577ed6d9ceec516c1f5a744
  • SHA256 a841a1fe8b81516cb7d07d1bf57d663a26ce360e61f2f90c9dc046e9280bd318
  • 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
3269630
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