Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ed3cb7785d33777…

MALICIOUS

PDF

51.3 KB Created: 2020-08-18 23:27:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2ad857ff574dacf07d6a79025a68a2bc SHA-1: f199f9907213ef900b5e6a16c564a314ec5ff869 SHA-256: 5ed3cb7785d337772fd5ab740f2ba041e8f5ea4aa280cc43340b81c62360e511
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to appear as free downloads, but they redirect to malicious infrastructure. Specifically, the link https://ttraff.ru/pify?keyword=exemple+cahier+des+charges+site+web+pdf is identified as a malicious redirector. The PDF also hosts a large number of external PDF links, suggesting a link farm or SEO manipulation tactic to distribute malicious content. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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=exemple+cahier+des+charges+site+web+pdf In PDF document text
    • http://kipiv.ascendingscore.com/uploads/1/3/1/3/131384401/a4fd8194c8.pdfIn PDF document text
    • http://files.advancedvedicastrologycourse.com/uploads/1/3/0/8/130814050/tiridajuleted-bejesakuref-dijol-pikexemizikag.pdfIn PDF document text
    • http://pezaton.afrofuturism-game.com/uploads/1/3/1/4/131438366/2809012.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/1/0434/6249/2310/files/apache_poi_xwpf_converter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5654/6463/files/39516790309.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3902/3526/files/bioprocess_engineering_basic_concepts_2nd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3898/9718/files/chaya_o_chobi_bengali_full_movie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5013/0846/files/26928687488.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8220/3801/files/23572489854.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9801/1816/files/51354773147.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5523/4710/files/sutubesim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0938/4345/files/55231990764.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1425/0905/files/2009298824.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8878/2236/files/94477133360.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9295/9642/files/5721238651.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_off000084b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84B5 5828 bytes
SHA-256: 3637e448407038db4e9ba082fd26d794094fc568a9098ed431dcf4236b5a25bc
font_01_sfnt_off0000987b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x987B 11960 bytes
SHA-256: 38db5d2a63aa6242947e4f623b5aab6aaaef82dd46a420970517110b1a800818

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