Malicious PDF — malware analysis report

Static analysis result for SHA-256 0af2846d37371974…

MALICIOUS

PDF

41.2 KB Created: 2020-08-26 20:21:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 178c99e871914e2f3051cbacd8802683 SHA-1: 5dc068fc76a5676ac95fcbae552335ec26d79f58 SHA-256: 0af2846d37371974d8920b1812822174a3d002b8c78f40b5181de0b2568d1bee
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to a redirector service, indicating an attempt to drive traffic for SEO spam or phishing. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM strongly suggest this malicious intent. Although no scripts were extracted, the document body contains embedded URLs that are part of this link farm.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ttraff.cc/pify?keyword=century+powermate+70+welder+manual In PDF document text
    • http://files.barberbeautysupply.net/uploads/1/3/1/6/131606262/nokiv.pdfIn PDF document text
    • http://files.studioafrolatino.com/uploads/1/3/1/4/131407737/degunezefenanogit.pdfIn PDF document text
    • http://vamuw.theonealexyoung.com/uploads/1/3/1/6/131606968/balojoleva-towatawoserafal-pumas.pdfIn PDF document text
    • http://vovesil.creativerehablab.com/uploads/1/3/1/3/131380594/gugujidajex.pdfIn PDF document text
    • http://files.adanacantiques.com/uploads/1/3/2/6/132682293/nojofej-bininu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7313/2961/files/brick_of_cash_gungeon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8108/0738/files/2766620955.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/7310/6083/files/surah_al_kahf_malayalam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6307/3181/files/romabela.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9432/7975/files/pharmaceutical_importance_of_carbohydrates.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6758/8252/files/jobet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4566/5433/files/vonazixuzidebitoxusatu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7727/0692/files/kugesomibejividage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3230/5054/files/21743044829.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1551/1968/files/star_wars_core_rulebook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3248/5793/files/gelemunonusowubapitima.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9954/4984/files/akasa_singh_video_songs.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

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000058c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58C7 5248 bytes
SHA-256: d342a9225aca15f6001ae4e19369efba9171bf853c429b0d08418dba1c85d653
font_01_sfnt_off00006aa0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AA0 14652 bytes
SHA-256: 1ffa96f972686f5524f4f8f3daa97b6072c28470b25849498e8c6f2286e9bead

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