Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c0b6d95e7847057…

MALICIOUS

PDF

41.1 KB Created: 2020-08-14 22:13:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a3a360360af3f92f05375d2618b32f04 SHA-1: 0fd9e218120235767c12cb13edbb67cf66b5a3fe SHA-256: 8c0b6d95e7847057e1636b08e23a2a869a94ddbc4bb8cdae65994ee989067117
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=cinema+4d+r20+update'. This URL is likely used to deliver a malicious payload or redirect the user to a phishing site. The document body also contains this URL and references a 'Cinema 4D r20 update', suggesting a social engineering lure. The presence of a large number of external PDF links, many hosted on Shopify, indicates a link farm used for SEO poisoning or distributing malicious content.

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.com/pify?keyword=cinema+4d+r20+update In PDF document text
    • http://files.board.solonchamber.com/uploads/1/3/0/8/130814611/ea8cd82f55.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/1/0433/0687/7080/files/20116177671.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0537/7701/files/susijo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2177/7570/files/logigokuvabafenuzegoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8611/1137/files/9810587140.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1061/0584/files/93408942641.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9281/1669/files/4843159609.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1147/3571/files/livizagibapoxes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4029/8392/files/arbitration_law_reporter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4392/1820/files/posapuraledimazixowapam.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_off00006358.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6358 5160 bytes
SHA-256: 90aa9837d75b899cd9086543202b53123f48eed04448f67f3bcfddb9887e39df
font_01_sfnt_off000074c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74C2 10520 bytes
SHA-256: 1437da1b510489f2445ef43cdb32d7f8c540aa71f8e5fa0547c6baced6246a10

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