Overview

overview

10

Static

static

10

BloxStrap ....1.exe

windows7-x64

10

BloxStrap ....1.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    BloxStrap v2.5.4.1.exe
  • Size 3.1MB
  • Sample240510-qfhfvabe87
  • SHA256 52f9d1a2c3d4518da21b3426a0ccefb04e07316755f97de9eaaecc1e09c4b5c7
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
office04quasar

Malware Config

Extracted

Family

  • quasar

Version

  • 1.4.1

Botnet

  • Office04

C2

  • 192.168.1.114:4782

Mutex

  • 10d94abb-0198-407e-aa98-bb80c5b37835

Attributes
  • encryption_key

    45C885494447187E9FBAD6C4E1ACD4A1590FC706

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Runtime

  • subdirectory

    SubDir

Signatures

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

    Checks for missing Authenticode signature.

File Explorer

  • BloxStrap v2.5.4.1.exe
    .exe 3.1MB

BloxStrap v2.5.4.1.exe

  • IMPHASH f34d5f2d4577ed6d9ceec516c1f5a744
  • SHA256 52f9d1a2c3d4518da21b3426a0ccefb04e07316755f97de9eaaecc1e09c4b5c7
  • MD5 SHA1 SHA512 SSDEEP
windows:4windowsx86arch:x86

  • Quasar payload

  • Unsigned PE

    Checks for missing Authenticode signature.

Minor OS version
0
Major OS version
4
Entry point
3269582
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