Malicious PDF — malware analysis report

Static analysis result for SHA-256 67f846b3f638109e…

MALICIOUS

PDF

56.6 KB Created: 2020-07-26 07:43:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 82cd29897cb169f9a06f0ba148ed46d2 SHA-1: 1adfb610f78fcf5f1514e7b660c6e256a34736f1 SHA-256: 67f846b3f638109e9578dfd13f1125fcf9fa114f44ab66ec8b0a6bc206f144ae
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating it links to malicious redirectors and is part of an SEO link farm, designed to lure users to potentially malicious content. The embedded URL 'https://ttraff.cc/pify?keyword=fracture+callus+formation' is flagged as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to deliver a malicious payload or conduct phishing.

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=fracture+callus+formation In PDF document text
    • http://files.carterandcompanybroker.com/uploads/1/3/2/6/132681576/1013279.pdfIn PDF document text
    • http://files.kanemiller.com/uploads/1/3/2/3/132302830/jaxapi_pomam_nurozulojoduz.pdfIn PDF document text
    • http://files.afrocubanforum.org/uploads/1/3/0/8/130874317/xafeluxo-fefagasezo-gepubesasilit-busamozagomum.pdfIn PDF document text
    • http://files.vancepta.com/uploads/1/3/1/3/131379543/ropesesazozola-mininasojoda-nisuxurolotawu.pdfIn PDF document text
    • http://files.purpleribbonpublishing.com/uploads/1/3/1/6/131606016/katos.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/1/0429/1588/9305/files/kozowapuwaxuvawisut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9189/4176/files/kanuzenozup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3590/0569/files/sogogakatul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3019/2039/files/wototewopejijibivexozav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/loxidunadubufurepetiverox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2925/0719/files/lasax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6099/9830/files/joxedapopibupokonowe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4383/9385/files/fitimewugasasijipebarasom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8582/4154/files/sasofomoli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8619/8424/files/46430091285.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5122/9089/files/88009352372.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 7

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_off0000a2b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA2B2 4864 bytes
SHA-256: c252bc1a37eb61b0506254c419ed48640241d13abb5bdf21ad3bff2c29000cae
font_01_sfnt_off0000b31a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB31A 9908 bytes
SHA-256: a5a0b800ce97ea821d399ef13a253875739868314cdf274474f9bf8254684c47

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