Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc267f09fa3c10e6…

MALICIOUS

PDF

49.3 KB Created: 2020-08-12 08:25:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ed05035f194c6efee7d92a775dbf34cd SHA-1: 6227f1cabe1c47c796143eb7796ebe5393df8a50 SHA-256: fc267f09fa3c10e6367f92bf74918207168d5c0d85250cfe25f97f2d5fc867fd
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one specifically identified as a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body appears to be malformed or heavily obfuscated, but the presence of numerous external links, including a redirector, suggests an attempt to lure users to malicious sites or manipulate search engine results.

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=principles%20and%20practices%20of%20management%20and%20organization%20pdf In PDF document text
    • http://gomanoded.dulcimerjim.com/uploads/1/3/1/6/131636725/pevulemuf-zemox-notif.pdfIn PDF document text
    • http://bavik.oldplunderuk.com/uploads/1/3/1/4/131437532/93529.pdfIn PDF document text
    • http://xafazexav.embodimentcollective.co.nz/uploads/1/3/2/7/132741099/c22b59b7804.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/1/0434/6223/0181/files/capites_de_areia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9754/7157/files/85206300881.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0571/4338/files/lozilagiroxusolaxenix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1097/4111/files/wagiduvepokivivoxil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5583/1445/files/dajavepagujuja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0316/6369/files/zekajorik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0633/4888/files/castrol_edge_turbo_diesel_titanium_5w_40.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0151/1068/files/block_spotify_ads_windows.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5286/7494/files/tatutakurajo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9477/8791/files/31930324227.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2725/9811/files/viraz.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_off00008395.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8395 5524 bytes
SHA-256: 839840ee217f3706d4dc9545ab444480b3431c05206d1c5d9947944f8f78ecdd
font_01_sfnt_off00009647.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9647 9880 bytes
SHA-256: 1181e9903f1b3a77ba0bf3fdbc23f0f008e62f78c6966da1a8594154b5e0bbd3

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