Malicious PDF — malware analysis report

Static analysis result for SHA-256 7897e6bcea62cb24…

MALICIOUS

PDF

59.8 KB Created: 2020-08-10 00:58:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e1c3a59fdfcb0dec3504b5fce67feb81 SHA-1: 98ef3f0c905371b9a4facb38153415cf401fe5aa SHA-256: 7897e6bcea62cb2476d6b2c7b10945f075fd90127fe3c4fe5c2d9741236854cc
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which appear to be part of a link farm designed to mimic legitimate content. The primary malicious link, https://ttraff.ru/pify?keyword=brill+new+pauly+encyclopaedia+of+the+ancient+world+pdf, is identified as a redirector to malicious infrastructure. The document's structure and the presence of many links suggest a phishing or scam attempt, likely using a "free download" lure.

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=brill+new+pauly+encyclopaedia+of+the+ancient+world+pdf In PDF document text
    • http://torikab.magichoskins.com/uploads/1/3/2/8/132814930/gukokudifazeza-raladeg.pdfIn PDF document text
    • http://ponum.ilanschraer.com/uploads/1/3/1/4/131453133/4594044.pdfIn PDF document text
    • http://tofimus.pragmaticinstructionaldesign.com/uploads/1/3/1/1/131164250/puraxiwazod.pdfIn PDF document text
    • http://files.vbfinearts.net/uploads/1/3/1/4/131406082/8bf3d7172af.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/1/0436/1856/6306/files/pefogasoximitekip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4556/0219/files/wurebinixinakerur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1019/5605/files/marshall_method_of_bituminous_mix_design.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4305/1937/files/34706186816.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2642/1672/files/sufujujus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9070/6599/files/fubasomotosagij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2168/1315/files/tudiwamu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3305/0779/files/75052208957.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0845/8905/files/kuboxejasenolajadonaduvol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5661/0976/files/pinizegatuvujofezuluz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1117/8649/files/biochemistry_proteins_notes.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_off00009f1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F1D 5308 bytes
SHA-256: 9a7836ab759fe96c1c1aa63b15a9730279822a2e6bcb4bfd8591bb8dcd447b29
font_01_sfnt_off0000b141.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB141 15104 bytes
SHA-256: 6bc06dc773b46e4dc6f0a01dfeb90afbbe4a96806beaea6bde9597acd0f61dd8

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