Malicious PDF — malware analysis report

Static analysis result for SHA-256 763af09bc2810e68…

MALICIOUS

PDF

36.9 KB Created: 2020-08-18 19:40:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 53b2374d2f11de57d098dcfe47030a91 SHA-1: a892b5061dc0fa614ae479bb3d58f53cd32f6b03 SHA-256: 763af09bc2810e6858e2aec1ddc668cf9c7c43ac8e6c23f4069495d2f087834c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a critical heuristic firing for a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text suggesting an 'application form' lure. The primary malicious URL identified is https://ttraff.com/pify?keyword=baradene+application+form, which is likely used to redirect users to a phishing or malware hosting site.

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=baradene+application+form In PDF document text
    • http://files.boldexpressionsco.com/uploads/1/3/1/8/131856212/6096374.pdfIn PDF document text
    • http://files.merivaki.com/uploads/1/3/1/3/131379718/1688770.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/1/0434/1504/4252/files/89570883125.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7075/8820/files/lutegagawama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7700/0611/files/aprender_italiano_descargar_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7110/3395/files/sepigivikake.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4891/9450/files/34118783458.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0298/5621/files/xibogujirewuwapera.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8365/3527/files/gastrocnemius_flap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1100/4821/files/warhammer_40k_space_wolves_codex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/tisofarilamofenuwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7015/3113/files/12033395307.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 2

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_off00005478.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5478 5172 bytes
SHA-256: c700d585a397f4c1a34b8e2b5b1085b8c5301129a81b687a57b1dc317215297d
font_01_sfnt_off000065f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65F1 9712 bytes
SHA-256: 20e31d9add70fe3a1b730f6b09664b0f34a0296d5071e671d04f21c9f8391a44

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