Malicious PDF — malware analysis report

Static analysis result for SHA-256 758d0cdf14b8c76f…

MALICIOUS

PDF

45.7 KB Created: 2020-08-20 13:02:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7b906a0fa14c6743027606a425de7428 SHA-1: 16a6a16f21961cd648c6e2903ddf1811c94131c3 SHA-256: 758d0cdf14b8c76f3239a343684cac33443dfd366040e64d56aea47e8f66b5ae
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service, indicating an attempt to drive traffic to malicious sites. The presence of a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM strongly suggests a phishing or scam campaign. The ML classifier also flagged this PDF with high confidence.

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=branding+a+key+marketing+tool+pdf In PDF document text
    • http://files.savannah-aerials.co.za/uploads/1/3/2/6/132682822/vafenelufemowe-norimemuzitim.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/1/0429/7038/2490/files/butterfly_valve_catalogue.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9050/2042/files/67941930444.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5471/9395/files/fafufepalenumiter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8014/6339/files/87717903978.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4013/5589/files/57153666668.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8167/9523/files/sezuletilegoripalafomuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6897/1418/files/roxinonujide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6556/3549/files/13268308991.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1093/0341/files/15873887713.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1632/1184/files/ponesoruluwiso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/5496/0533/files/jelikazawuxalaveso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0513/2456/files/diramosuzofuwipaki.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_off000074e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74E4 5400 bytes
SHA-256: 0e6e96dbc5b455b202dfef5f3e860b7b3ce3ed2e8ae1a6ff158e9d9b3f4cf3ea
font_01_sfnt_off00008733.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8733 10120 bytes
SHA-256: a01e5b388b697d65743ebe0af7f0ab753c5dc15bcc27377d3a41706843e0c737

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