Malicious PDF — malware analysis report

Static analysis result for SHA-256 da1a203dfbe8be54…

MALICIOUS

PDF

66.8 KB Created: 2021-03-03 16:14:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 6d9dc717ae1574882d5db42159bf8b41 SHA-1: 72e9d00551f54c9041a4e98b5f2bf427b366d9e2 SHA-256: da1a203dfbe8be5406b6b0f805f98cbcf913babed4f8bccac57baa77f2aea982
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://xezojetit.ru/strik?utm_term=jlab+jbuds+charging PDF link annotation
    • http://fifamarketbot.com/osi_model_layers_and_their_protocolsgy8kx.pdfIn PDF document text
    • https://cdn.sqhk.co/wesaduleb/dhcGBCs/xironudorosix.pdfIn PDF document text
    • http://anarchymedya.com/61540651404140vo.pdfIn PDF document text
    • https://cdn.sqhk.co/roxirali/G8FUjc1/colors_movie_gif.pdfIn PDF document text
    • http://thehensleys.org/transunion_annual_credit_reportz8zi4.pdfIn PDF document text
    • https://cdn.sqhk.co/susojitigi/jfyhiBY/scary_hide_and_seek_maps_fortnite_codes.pdfIn PDF document text
    • http://nazhivy.net/xalegejatenigukabodinofamp21q.pdfIn PDF document text
    • http://leree6.club/wamijaloiiiqb.pdfIn PDF document text
    • http://xozonline.ru/how_he_loves_us_chords_bethelljt8m.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4530151/normal_60287933c3e1f.pdfIn PDF document text
    • https://cdn.sqhk.co/fafaviwi/jfIFvhb/tijeri.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/polexebuj/xerunatozewutexeguz.pdfIn PDF document text
    • https://s3.amazonaws.com/vudivuzakal/tamogenixod.pdfIn PDF document text
    • https://s3.amazonaws.com/vobuturinivi/91678293875.pdfIn PDF document text
    • https://s3.amazonaws.com/safago/zexoxopanewibukevarivoge.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_off0000c755.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC755 5408 bytes
SHA-256: 5d23733d7e2359239ffdb09696c7e0206fd0cbd5a1821aad34645704e8841a19
font_01_sfnt_off0000d9af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9AF 10524 bytes
SHA-256: 77bcb30f1c0dd5ca3f0185d3ae32d5687b68450fbe3837d4f371a2381a6a0800