Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea3ef5d638bc3f72…

MALICIOUS

PDF

41.9 KB Created: 2020-08-09 04:39:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b292c8476f1d718dc45137e1994dd00d SHA-1: 109241ce1deec451ad931209601cdb1080a1a7be SHA-256: ea3ef5d638bc3f727685db0c712aa908913c2c5e9f0b422b68c1e0a38df15f0c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by an ML classifier and contains a large number of embedded links. One of these links, https://ttraff.cc/pify?keyword=codices+prehispanicos+de+mexico+pdf, points to a known malicious redirector. The document also exhibits characteristics of a PDF link farm, with many links pointing to external PDF files hosted on various domains. The primary attack pattern appears to be social engineering through a lure document that redirects 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.cc/pify?keyword=codices+prehispanicos+de+mexico+pdf In PDF document text
    • http://furogiz.indypolevaultjumpscamps.com/uploads/1/3/1/6/131606490/642613.pdfIn PDF document text
    • http://files.mounthorebccl.info/uploads/1/3/0/7/130775308/5059560.pdfIn PDF document text
    • http://files.svea1988.com/uploads/1/3/0/8/130874379/garumamezup.pdfIn PDF document text
    • http://files.gratiotfarmersmarkets.com/uploads/1/3/1/1/131164202/zojetubokaki-pezita.pdfIn PDF document text
    • http://robasovav.scarfitup.org/uploads/1/3/1/4/131437886/7dd15fd2962cb.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/1/0428/4186/6403/files/zenith_remote_controls.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1189/9551/files/tijipifolibexoseninar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7904/9121/files/judopoke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4052/9816/files/viseneki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2199/7979/files/95056294087.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6700/7386/files/39990541592.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8735/4270/files/poe_chaos_recipe_filter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4519/1841/files/aditya_hridaya_stotra_in_telugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4424/1562/files/71277503753.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5326/0706/files/51172857730.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9276/0981/files/suprema_access_control.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4379/6645/files/50580123470.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 8

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_off0000674d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x674D 5336 bytes
SHA-256: fe75647a56ad106340b4440b45196f76cab8796c12e6786f3ad31e08e4149d6c
font_01_sfnt_off00007949.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7949 9752 bytes
SHA-256: 803551e3230e58826e4486cf0bfb8649777d4657b43f1e2edc34acdfea91ddfd

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