Malicious PDF — malware analysis report

Static analysis result for SHA-256 1009351b9d3823f1…

MALICIOUS

PDF

37.8 KB Created: 2020-08-12 18:14:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a600ae97930fbaf13804a55b60e1026e SHA-1: 717ef7ab4e01ab50e63b7b916a671743af70090a SHA-256: 1009351b9d3823f11460abb4f3437b031a9f86ca08d6ac0ffe978545bbe0b9b7
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a primary link pointing to a known malicious redirector infrastructure. This redirector is associated with SEO link farms, suggesting a phishing or scam campaign. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a 'guide de l'astronomie pdf', further supporting the phishing pretext. The ML classifier also strongly indicated maliciousness.

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/wb?keyword=guide%20de%20l In PDF document text
    • http://files.francoisebabytourguide.com/uploads/1/3/0/8/130814052/0f36728b46.pdfIn PDF document text
    • http://files.ipmed.org/uploads/1/3/1/8/131856945/geputuz.pdfIn PDF document text
    • http://files.amylouise-psychotherapy.co.uk/uploads/1/3/1/1/131164431/3555838.pdfIn PDF document text
    • https://ttraff.ru/wb?keyword=guide%20de%20l'astronomie%20pdfIn 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/1/0434/3237/8517/files/mijazegamikaruwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5432/4117/files/vabuvinekevugadepanopebip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2119/7724/files/wojadugisedufexade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5013/9801/files/36176453342.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0035/6251/files/mitetaxulepalewozuke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4748/3552/files/dizigigagedununube.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6748/7894/files/an_inspector_calls_revision_booklet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8833/9361/files/vascular_vs_nonvascular_plants.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3410/8323/files/e7_bd_91_e6_98_93.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/42745006773.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8315/9969/files/wafuvuxinubutifazivozo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/9564/8408/files/definition_of_industrial_economics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5149/1233/files/48966277954.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_off000051f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51F1 5252 bytes
SHA-256: c869871fce8f76d10dc429c2d869f7f1a0ec9ccf24ac6a8e181ce29899ce0699
font_01_sfnt_off000063be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63BE 11752 bytes
SHA-256: af0679141de0439bc03b96d5ebadca488bc3a912e78b576c2554f008bc2b9fe9

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