Malicious PDF — malware analysis report

Static analysis result for SHA-256 50267a5e7da67d66…

MALICIOUS

PDF

41.8 KB Created: 2020-09-19 12:31:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5b04cf2cb287e89cdcef6e6831f12895 SHA-1: ff570b964a016af0c229c9ca37eb273e85f5ff78 SHA-256: 50267a5e7da67d6606006ace8a02fdc6df831416e304540d6cb9da92a18c1670
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector, suggesting a phishing or malware distribution attempt. The document body, though partially corrupted, contains text related to a 'Harley davidson sportster repair manual pdf' and includes the malicious redirector URL, indicating a lure to entice users to click the link. No scripts were extracted from this sample.

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.link/wix?keyword=harley+davidson+sportster+repair+manual+pdf In PDF document text
    • http://files.watson5th.com/uploads/1/3/1/4/131452840/puvemileza.pdfIn PDF document text
    • http://lesarog.tallmrhall.com/uploads/1/3/0/7/130740069/9502055.pdfIn PDF document text
    • http://taruwoto.stpaulsrejaxbeach.net/uploads/1/3/1/3/131398285/1690989.pdfIn PDF document text
    • http://files.csaheating.com/uploads/1/3/0/7/130775027/dedikajokan_safukotigila_limoruvanu_gedusugegobuwib.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/1/0429/1595/4847/files/fipeligimotituvuvi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8371/0108/files/52151933368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5512/8480/files/noxifakudulaxoretuwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1320/9246/files/11218040595.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5630/8123/files/pelexiditimexemuwixu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9515/4070/files/pevaxepiturikobawev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0195/3952/files/ranefitokonogisiwudaril.pdfIn PDF document text
    • https://2c1604dc-3cc3-4e62-a07e-ebebd80ebea4.filesusr.com/ugd/36d413_1095e1a646f64b9c90e1f26c79023f45.pdf?index=trueIn PDF document text
    • https://59e80c88-4e1f-4c01-b3e3-6d077720f5d1.filesusr.com/ugd/31593d_e5b110e00e6a4e83a10bd2c4e918da4b.pdf?index=trueIn 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 5

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_off00006576.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6576 5312 bytes
SHA-256: a106ee6cdcf26452a07b477dd196eafc89566e1ff3433dd23fd07836fd39b908
font_01_sfnt_off0000777c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x777C 10156 bytes
SHA-256: f4a2dda680eb921d6c2e8dfa8f22607a9b7aa945025a45222c13e3f0d453a99e

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