Malicious PDF — malware analysis report

Static analysis result for SHA-256 c304e81fa55088e8…

MALICIOUS

PDF

45.9 KB Created: 2020-08-18 20:40:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4097276f5de62b715912e2a99732cd3d SHA-1: c0d61f9ffe7189453c0dec38c0509d9c843f0164 SHA-256: c304e81fa55088e87f28a8163c9be294c198caa39b25bb3d66350a8eba7b963c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link farm designed to appear as a Volkswagen Beetle manual, but it redirects to a malicious URL. The primary heuristic indicates a malicious redirector link, and the document body contains the malicious URL and other SEO-optimized PDF links. The file's purpose is to redirect users to malicious infrastructure.

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=2005+volkswagen+beetle+manual+pdf In PDF document text
    • http://files.tripointlutheranparish.com/uploads/1/3/1/4/131407565/tanitovuka.pdfIn PDF document text
    • http://zirison.info-prose.com/uploads/1/3/1/8/131871479/bakevi.pdfIn PDF document text
    • http://files.midlandboxerclub.com/uploads/1/3/2/7/132710497/291998.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/1/0435/2458/7674/files/7503596004.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8343/2096/files/57268508529.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6881/7562/files/raperexexutelul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5811/9334/files/43092967213.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1381/5966/files/75837073214.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4977/7312/files/wevowafajasabegegopunomu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5653/7505/files/muscle_gain_workout_plan_for_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9610/4348/files/8174340493.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1208/5144/files/nasaligaxokabobafaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1806/7866/files/fatoguxodipud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1604/3168/files/zazikiledela.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2139/3320/files/zobivogedutigalajuporases.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/7424/3999/files/algebra_word_problems_grade_5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/binary_file_to_online.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_off000072b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72B8 5924 bytes
SHA-256: 032cd12935ce08c97132ab92ea16665a1f2dd1cea1e44220d478a7256d6195ee
font_01_sfnt_off000086e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86E1 10524 bytes
SHA-256: 4c0553067173b669a9a6c095e7f91eb729e0038461cf5d3aef4b577b795652f7

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