Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae6a2413a5de4587…

MALICIOUS

PDF

53.1 KB Created: 2020-07-27 08:47:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c59ebaba41e02099bb1301c13f8e4a2d SHA-1: 942dde8f395866971b8b5bade32790aab763c7aa SHA-256: ae6a2413a5de45879a91aa2124534177a916a75194d70efbe5e85d020afcc074
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Additionally, it exhibits a PDF SEO link farm heuristic, with numerous links hosted on Shopify, one of which is 'cdn.shopify.com/s/files/1/0432/9229/5333/files/fimowuzivebunimitefotego.pdf'. The ML classifier also strongly flagged this PDF as malicious. The document body appears to be corrupted or heavily obfuscated, but the presence of the redirector and link farm strongly suggests a malicious intent, likely to lure users 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=aylesbury+high+school+sixth+form+prospectus In PDF document text
    • http://files.christophermannino.com/uploads/1/3/1/1/131164252/5290580.pdfIn PDF document text
    • http://files.txtorches.com/uploads/1/3/2/6/132681586/siwes-nabuwawisu-zuzuta.pdfIn PDF document text
    • http://files.ourscattereddreams.com/uploads/1/3/0/8/130815228/vexotike.pdfIn PDF document text
    • http://files.rosewoodtrading.com/uploads/1/3/1/4/131437680/nabofukaxovi.pdfIn PDF document text
    • http://files.curiouskidspreschoolprogram.com/uploads/1/3/1/3/131379820/posipuxivima.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/1/0432/9229/5333/files/fimowuzivebunimitefotego.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6843/2288/files/62854840772.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0079/9140/files/83212017776.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7895/8758/files/rorewedebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1471/7597/files/jobomorupiwerosanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9901/2766/files/mamekamikujorejivewewifa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3156/8277/files/3969192599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31903895201.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3651/5224/files/32683776429.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2863/4010/files/19459609308.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 7

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_off00009152.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9152 5296 bytes
SHA-256: 0e58ae770b18669eb70a4341280d08cfc6a17e23adb91390603811d24fae60fa
font_01_sfnt_off0000a365.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA365 10412 bytes
SHA-256: 1a370fad52175e99e9b4c564150c0a1ffa91e737ab9281d5668e987980d9c2e7

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