Malicious PDF — malware analysis report

Static analysis result for SHA-256 02252edee1db8e1d…

MALICIOUS

PDF

45.0 KB Created: 2020-08-06 20:03:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aa9125821e3158b97c950e7bef44b8b7 SHA-1: c647e402b9d537415886427a65641749d24e482b SHA-256: 02252edee1db8e1d8d6338fcd79710b03ba9d7bcc21663252bc3db555297f9b6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many pointing to a redirector URL (https://ttraff.com/pify?keyword=canal+atrioventricular+comun+pdf). This behavior, combined with the 'PDF_SEO_LINK_FARM' and 'PDF_SEO_UTM_REDIRECTOR_LINK' heuristics, strongly suggests a phishing or malware distribution lure disguised as a free download. The ML classifier also flagged this PDF with high confidence.

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.com/pify?keyword=canal+atrioventricular+comun+pdf In PDF document text
    • http://files.coechurchofchrist.net/uploads/1/3/0/7/130738943/ba57c3.pdfIn PDF document text
    • http://reluvuz.artpourparties.com/uploads/1/3/1/4/131437044/jobunupenabojatew.pdfIn PDF document text
    • http://files.danieldiazvidal.com/uploads/1/3/2/7/132740250/2185199.pdfIn PDF document text
    • http://files.wageningenstudentfarm.nl/uploads/1/3/0/7/130740438/dibarukidegurirodafe.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/1/0435/5378/3957/files/lasopibinakun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7748/4196/files/guild_wars_2_arcdps.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7283/8039/files/nevesutiridaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1708/3803/files/dejovilagelubeguzuvemuvo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6108/4322/files/crazy_frog_piano_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3349/3655/files/ririxorozarik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4646/0830/files/85924246244.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0776/9750/files/rajigob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9754/7157/files/75914286336.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6858/8194/files/onyxia_s_lair_entrance.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8863/4263/files/desumubepuve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6189/4565/files/91090683018.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 3

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_off000072eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72EB 5088 bytes
SHA-256: da750feaefc59020c483b119265555d9b090f8412779fcd54c9b81db2d8f1ce4
font_01_sfnt_off00008427.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8427 10240 bytes
SHA-256: 5c6ed8b2e367e78e6a44f078ab37802df02a56df32cc9112278bc1a8e9e0b719

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