Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6fb044b716db86a…

MALICIOUS

PDF

70.8 KB Created: 2021-03-02 22:05:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 8b442b07f025628046ee3b6d38f82d2a SHA-1: e81e05245aa6ee24612581a1fc06dfc72a11c5c7 SHA-256: b6fb044b716db86af23618d5bdee83e8656b5446664975c732c86c7b187342c2
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://leonvi.ru/award?keyword=which+accent+do+you+have+test PDF link annotation
    • http://paktum.pro/smith_s_pharmacy_hours_valle_verdevdp5g.pdfIn PDF document text
    • http://nicepics.xyz/piruzedepolozeruqilr.pdfIn PDF document text
    • http://ing-cliente.com/gatunogifupugebo6na33.pdfIn PDF document text
    • http://begetus11ppz.xyz/what_if_my_drivers_license_expires_during_covid-19xtvsb.pdfIn PDF document text
    • http://lukufogud.getenjoyment.net/pobigupeviferor.pdfIn PDF document text
    • https://nusutaligufobam.weebly.com/uploads/1/3/5/3/135393176/divujitu-nopedesotisani.pdfIn PDF document text
    • https://tanofome.weebly.com/uploads/1/3/5/3/135316841/lutosefimava_rawewiwugeken_bomipe.pdfIn PDF document text
    • http://card2card.live/pojezunebajulicpb6z.pdfIn PDF document text
    • http://ipoteka.net/the_woman_in_the_window_movie_cast_2019sxla8.pdfIn PDF document text
    • https://visumosibe.weebly.com/uploads/1/3/0/8/130814065/2698598.pdfIn PDF document text
    • http://zokidinodajives.getenjoyment.net/zanime.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lodonevubepivor.epizy.com/golikaxomijikuzedovimijum.pdfIn PDF document text
    • https://s3.amazonaws.com/kovilowab/kenexa_microsoft_word_2013_test_answers.pdfIn PDF document text
    • http://totuxivez.onlinewebshop.net/vigid.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d8ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8ED 5072 bytes
SHA-256: d84ee5170a3dff68ed8af8a21e26909f7d1e5f6857083591e179249475e452c5
font_01_sfnt_off0000ea47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA47 10652 bytes
SHA-256: 2658a33351811051f2174fdda135c90adf36d7395e559faff3d888788a3b1574