Malicious PDF — malware analysis report

Static analysis result for SHA-256 33f29ca0189d5daa…

MALICIOUS

PDF

44.6 KB Created: 2020-08-04 11:08:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 13c1c4e632a19498ab7dc5961809c37f SHA-1: ce3741346bd54f4187d70d75e25879f469e35cb4 SHA-256: 33f29ca0189d5daa92cad4327cb7fd27d67a68be7a4c9626ab78ffb6b22fbe08
194 Risk Score

Malware Insights

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

This PDF document acts as a lure, masquerading as a cooking guide to trick users into clicking numerous embedded links. Many of these links lead to SEO redirectors, specifically `https://ttraff.ru/pify?keyword=basics+of+cooking+pdf`, which likely serve as a gateway to malicious content. The ML classifier strongly indicated maliciousness, and the high number of external links, many pointing to redirectors, supports a phishing or scam-related attack pattern.

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=basics+of+cooking+pdf In PDF document text
    • http://files.aphroditesclosetalameda.com/uploads/1/3/1/4/131453151/fovezove.pdfIn PDF document text
    • http://xibuk.merseysidearchsoc.com/uploads/1/3/1/0/131070872/durolis.pdfIn PDF document text
    • http://wivekeret.unclerhetts.com/uploads/1/3/1/4/131408056/65cc1.pdfIn PDF document text
    • http://files.mkeddleman.com/uploads/1/3/1/4/131409309/lopolawatirun.pdfIn PDF document text
    • http://files.madisimmons.com/uploads/1/3/0/7/130738875/bac7f5ea49e.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/1/0430/9617/8845/files/rule_34_star_trek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/44329390643.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0496/0661/files/minecraft_prison_servers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6200/0806/files/nusodilokinikizexagugale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5354/7677/files/43550326424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6706/4998/files/33854502985.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7972/8281/files/darapaseti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3862/9275/files/ketot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3989/9304/files/12021410737.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6727/5424/files/rikugabufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3593/4370/files/kirupadanaxegelovopoju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7560/9510/files/gifulolonoramibasenixuw.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 4

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_off000071c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71C4 5308 bytes
SHA-256: b028f179bf1ea80a10ea9964eae8f523a23b6189e7ac6d61773782971afe14d3
font_01_sfnt_off000083f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83F2 9808 bytes
SHA-256: 3e459d9ecccfa2ff713eedfd802dad74335cae5c9278fbc30d9dbe815c9be1fc

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