Malicious PDF — malware analysis report

Static analysis result for SHA-256 425147a72a9bd32b…

MALICIOUS

PDF

68.6 KB Created: 2020-12-14 09:42:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-15
MD5: 1f137e4348945c698b54681925a845c4 SHA-1: 4dadfd17a376ac34b6a7f5b3ccda25a73b516788 SHA-256: 425147a72a9bd32bdcd82453741b4ebfa67d0a42949c0db6489bf278defc8ddb
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://trafftec.ru/123?utm_term=2+quart+crock+pot+with+warm+setting PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4443608/normal_5fad140524cb2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374980/normal_5f977b792fd2b.pdfIn PDF document text
    • https://zanorima.weebly.com/uploads/1/3/4/6/134624551/2a1d4e21fa81bd8.pdfIn PDF document text
    • https://dodafuwunolig.weebly.com/uploads/1/3/4/0/134016835/c4d98f64.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376099/normal_5f925443db714.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/remuv/27722280209.pdfIn PDF document text
    • https://s3.amazonaws.com/wizedumi/modernization_examples_yahoo_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a531375-5a29-4ff3-bc52-23c4952e88eb/46858810327.pdfIn PDF document text
    • https://s3.amazonaws.com/baxadelefofibuz/tulexafano.pdfIn PDF document text
    • https://s3.amazonaws.com/sedimeraxufi/betizobeneroruserawelodu.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fce30973b4ad40d4a7fda9c/t/5fd17e6d23f2866aa380410f/1607564914745/lurorukawilinibe.pdfIn PDF document text
    • https://s3.amazonaws.com/nowonovege/directions_to_van_andel_arena_grand_rapids_mi.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc538fa6b97992eb578077c/t/5fd66b1bdca2215260430e41/1607887644997/horde_mage_speed_leveling_guide.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_off0000cba1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBA1 5632 bytes
SHA-256: c2bde335e14c79a9f18a8342c86ecc54ce3066e98cea40a932b919f97f6fc412
font_01_sfnt_off0000deb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEB7 11032 bytes
SHA-256: 5c0c0021fb244c93e91ea29676e6282bff99b9ce908fd8e98368f94b3e25b67e