Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fac577e041906ec…

MALICIOUS

PDF

46.5 KB Created: 2020-08-10 18:04:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bc239eefe8fb9d29ade18cbe080882a7 SHA-1: 0c1fdf9be6fedf505d7163c8614b1fd9076cd89e SHA-256: 6fac577e041906ec8668b1097c05c3c37be4c7c3f6679be21fd2307defa240e5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains text suggesting a 'bendable concrete seminar pdf' lure, and the embedded links are part of a link farm designed to appear legitimate. This indicates a phishing or scam attempt to redirect users to malicious infrastructure.

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.com/pify?keyword=bendable+concrete+seminar+pdf In PDF document text
    • http://files.triciaatpuremagicvacations.ca/uploads/1/3/1/3/131380308/4354385.pdfIn PDF document text
    • http://files.loyolacardiovascularthoracic.com/uploads/1/3/0/7/130776120/3a1e6761f4.pdfIn PDF document text
    • http://files.emericservices.com/uploads/1/3/1/4/131407194/9965008.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/1/0433/0687/7080/files/favubedezemopazejive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4277/2891/files/dokofifugurara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4431/4011/files/documentation_of_clinical_pharmacy_services.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0462/4021/files/27738016304.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1775/6062/files/wudazabawojaki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1329/9620/files/gukumozopamilijilub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pexivopagutufaxusezonav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3526/3138/files/rewawobodidifanuvexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9825/1165/files/11722114664.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9085/3541/files/79854033382.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/7587/3442/files/catechesi_tradendae_indonesia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0197/0837/files/73735495190.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6643/3429/files/bagigutevajodif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2370/3969/files/1953_ford_golden_jubilee_tractor_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1497/9737/files/72128668599.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 3

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_off000076c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76C7 5492 bytes
SHA-256: 5e2c8740798280e0d3c4f316d485e282c1fd82f8368ffc6dcc7c0207aac62fab
font_01_sfnt_off00008951.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8951 10764 bytes
SHA-256: 87d817ab90ee7309856d48f517968f7fcce5d31e7c14b429e3d6f467fad559ec

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