General

  • Target

    Bloxstrap-v2.5.1-main.zip

  • Size

    2.0MB

  • MD5

    25790aafc4aabb458ab707091f00720b

  • SHA1

    88f983ab032829b05c2d532eec74769c016b5a63

  • SHA256

    e46ddb2b2b2cc74e8306adc682228969d35e2943a917e321bd5db72e744d2d05

  • SHA512

    99e8e2d7ad2c17edb9edc11a22b6c1fa9b5ffeb49f34f0cb45d74f269fc0c8bba6527d82a54251c1fe54b6484abc0d8b8a8a6f59811b725031991a6fbd642d4f

  • SSDEEP

    49152:2EYoWSwCXw0TX1ohooPlv5MP/KFITYbNbNWo4kSH3OqtwIYJ4:HYNqlo7lxMPiFIT4bNJFY3Oqtv

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

  • AgentTesla payload 1 IoCs
  • Agenttesla family
  • Quasar family
  • Quasar payload 1 IoCs
  • Unsigned PE 1 IoCs

    Checks for missing Authenticode signature.

Files

  • Bloxstrap-v2.5.1-main.zip
    .zip
  • Bloxstrap-v2.5.1-main/BloxStrap v2.5.4.1.exe
    .exe windows:4 windows x86 arch:x86

    f34d5f2d4577ed6d9ceec516c1f5a744


    Headers

    Imports

    Sections

  • Bloxstrap-v2.5.1-main/Guna.UI2.dll
    .dll windows:4 windows x86 arch:x86

    dae02f32a21e03ce65412f6e56942daa


    Code Sign

    Headers

    Imports

    Sections

  • Bloxstrap-v2.5.1-main/Kernel.sys
    .sys windows:10 windows x64 arch:x64

    359ca82ee879be4c8360522beea9202e


    Code Sign

    Headers

    Imports

    Sections

  • Bloxstrap-v2.5.1-main/WebView2Loader.dll
    .dll windows:5 windows x86 arch:x86

    608537c42a46a95b31cc1ef01ab6eeb0


    Code Sign

    Headers

    Imports

    Exports

    Sections

  • Bloxstrap-v2.5.1-main/autoexec.lnk
    .lnk
  • Bloxstrap-v2.5.1-main/aworkspace.lnk
    .lnk