Malicious PDF — malware analysis report

Static analysis result for SHA-256 4afccbd02f65db52…

MALICIOUS

PDF

68.7 KB Created: 2020-11-14 13:15:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-06
MD5: d661a814da893aab642cdf5546111b51 SHA-1: a87e1dcd2ac31285e33553fc9c48a1b71ddc7737 SHA-256: 4afccbd02f65db525ed55ae08b2b129068e29dee3bc1683410ea00d83cbc2d3d
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://trafficel.ru/123?utm_term=nude+hawaiian+girls PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4486521/normal_5fa91763686fa.pdfIn PDF document text
    • https://zalawevovupat.weebly.com/uploads/1/3/0/9/130969727/d296180d624e27.pdfIn PDF document text
    • https://wogivanozo.weebly.com/uploads/1/3/4/5/134586267/fisisixogasezo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382960/normal_5fad97601cd34.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/5df055a9-4a83-4443-a27c-3f6f2026cb61/zosisarataf.pdfIn PDF document text
    • https://s3.amazonaws.com/tamobalasu/the_boy_who_cried_wolf_tony_ross.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/sanjay_agarwal_costing_book_ca_final.pdfIn PDF document text
    • https://s3.amazonaws.com/pezofut/fuzuditamajafevi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6bb3a7c8-b9f4-4845-b18c-fa7f5b8e63ac/31022519935.pdfIn PDF document text
    • https://s3.amazonaws.com/defipedibe/dua_for_forgiveness_of_major_sins_in_islam.pdfIn PDF document text
    • https://s3.amazonaws.com/xamapebonijos/92430342286.pdfIn PDF document text
    • https://s3.amazonaws.com/tofizo/catskill_daily_mail_newspaper_catskill_ny.pdfIn PDF document text
    • https://s3.amazonaws.com/zidenigad/skyrim_thieves_guild_quests_walkthrough.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/56934948440.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_off0000cfdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFDB 5148 bytes
SHA-256: 8fbd95d231a1c709821bf36ae0d0e50e1af216a6de757daaa61e3a7715e87c0c
font_01_sfnt_off0000e170.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE170 10880 bytes
SHA-256: f8822cdd2fad6b4d8e0dc036254d382f522560d1b3078a18e9b545cad7fe8ff4