Malicious PDF — malware analysis report

Static analysis result for SHA-256 184e2db78b109fa5…

MALICIOUS

PDF

45.7 KB Created: 2020-08-09 10:42:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f6f0216ca0391cd0971c6376731ab6ee SHA-1: 438407c88ae0d79c2eb1ca5d166982217c3b568e SHA-256: 184e2db78b109fa52aaa67399e6af3db1f8f1222a9afb7bf6db96e2566ff3522
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous links to external resources, masquerading as a document about 'applications of mathematics in real life'. The primary link, 'https://ttraff.ru/pify?keyword=applications+of+mathematics+in+real+life+pdf', is identified as a malicious redirector. The document's structure and the presence of a large number of links suggest an SEO link farm or phishing attempt designed to drive traffic 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.ru/pify?keyword=applications+of+mathematics+in+real+life+pdf In PDF document text
    • http://files.zimmermanvideoproductions.com/uploads/1/3/1/4/131411199/2405655.pdfIn PDF document text
    • http://files.clonmelglassandmirrors.com/uploads/1/3/1/4/131438067/5505119.pdfIn PDF document text
    • http://files.gloriaojularisule.com/uploads/1/3/1/8/131871602/fedevazuxomu.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/1/0429/7061/1861/files/wevuzakonimiduzalu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8545/4757/files/94605800347.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7665/7055/files/zopubugikobi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8760/9497/files/malcolm_baldrige_criteria_for_performance_excellence.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0487/9271/files/41706156432.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6486/0575/files/knee_strengthening_exercises_for_runners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3050/3846/files/c_n_ratio_in_soil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0921/1559/files/tosizidatitos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4253/7629/files/18717746283.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 1

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_off00007322.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7322 5384 bytes
SHA-256: e8acf44bc16fcc49a41c102139ca170e0b3d8357ec74fa941015c6d4cf39bcee
font_01_sfnt_off00008547.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8547 10824 bytes
SHA-256: a07843f5678e3fcaeab24ff79b65bf1d02060824bf32f743a86d0963092929dc

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