Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c2a6c69cb5c9aaa…

MALICIOUS

PDF

45.8 KB Created: 2020-08-16 17:56:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 52a1540f8b49fba41e2a9e8f34c65691 SHA-1: f113e169fcac50c901d9ce2887f2b24b8ef9ebcf SHA-256: 7c2a6c69cb5c9aaaeea7817389b6b6496b5423be4e189803a1898ac637060299
194 Risk Score

Malware Insights

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

The PDF contains numerous links to a redirector service (ttraff.ru) disguised as 'Daily Mail crossword answers', indicating a phishing or malware distribution lure. The heuristic PDF_SEO_LINK_FARM firing suggests a large number of similar links were generated, likely for SEO poisoning or link farming. While no scripts were extracted, the embedded URLs and the nature of the lure strongly suggest an attempt to redirect the user to malicious content.

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=daily+mail+crossword+answers In PDF document text
    • http://files.eastendspecialplayers.org/uploads/1/3/0/9/130969192/bojokimokusejo_gaguxiriza_wapitore.pdfIn PDF document text
    • http://files.renewedbyfaithmissionretreat.com/uploads/1/3/1/8/131856518/gazawa.pdfIn PDF document text
    • http://files.indianaregion.org/uploads/1/3/0/7/130775897/8900363.pdfIn PDF document text
    • http://dapun.comfortablehomes.com/uploads/1/3/0/9/130969242/lowulabuzafef.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/1/0440/8374/0822/files/tasilunuveviwolipazupi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2167/2356/files/vubowume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0183/8744/files/sims_3_update.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0047/9391/files/snell_y_bohlander_administracion_de_recursos_humanos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6534/3141/files/functional_text_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7729/5516/files/year_calendar_template_2013.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5943/7975/files/thor_2_putlockers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3384/5150/files/unholy_death_knight_talents.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3121/5780/files/nozolinet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2439/2087/files/gubudezidufevozerob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/3232/6823/files/nurikajufoxuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9807/0426/files/71317508807.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_off000074f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74F1 5276 bytes
SHA-256: 1a740cdf21b90f23434f9770a31553be1f030a409a81431bb4a77cc6e01d58a4
font_01_sfnt_off000086d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86D8 10340 bytes
SHA-256: a737e36e8f92857c3edc6cef1092ed8df89fb3a43dfb125c6ee8555ad6fc2171

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