Overview

overview

10

Static

static

10

1b586bfe34...e7.exe

windows7-x64

10

1b586bfe34...e7.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    1b586bfe3423ef03ecba497e90fd31b42022dd8e1f325e212c1e23cc58ba7be7.exe

  • Size

    3.1MB

  • MD5

    aa5da5d211dd6b3c5e9404520ebeec1f

  • SHA1

    037e6d5fa8398a3f95df469d60debe6fc8c93f89

  • SHA256

    1b586bfe3423ef03ecba497e90fd31b42022dd8e1f325e212c1e23cc58ba7be7

  • SHA512

    9a02a50c2534ece296d183bd712f8be240f4e5d989842656e28392af41036d29dc30cf205fe3526b980a480c54c3d9a4de7f5ef35103dec2d29fb513d2e83b72

  • SSDEEP

    49152:PvSI22SsaNYfdPBldt698dBcjHod/oKT2fOTmZPKoGANtTHHB72eh2NT:Pv/22SsaNYfdPBldt6+dBcjHE/oKDg

Score
10/10
office04quasar

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

91.92.242.80:4782

Mutex

e88cd5c3-d3f7-4cbb-94a7-7136e3bc6ab9

Attributes
  • encryption_key

    B1F363CB165B4ADD4702FD386A0A1054BFED678C

  • install_name

    WindowsUpdate.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Windows.Update

  • subdirectory

    Update

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.

Files

  • 1b586bfe3423ef03ecba497e90fd31b42022dd8e1f325e212c1e23cc58ba7be7.exe
    .exe windows:4 windows x86 arch:x86

    f34d5f2d4577ed6d9ceec516c1f5a744


    Headers

    Imports

    Sections