Malicious PDF — malware analysis report

Static analysis result for SHA-256 110ba7147ca291e5…

MALICIOUS

PDF

42.2 KB Created: 2020-08-07 23:36:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f6cfd4c353198e275cf5bde10e51e370 SHA-1: 845e1625af3e7fbed552479abde570bbcb5e6109 SHA-256: 110ba7147ca291e52fdb753d0f5ab87b68bcaf92d03164389e54c137d12ccb23
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a link that redirects to a known malicious URL, identified as a redirector for SEO link farming. The document body text, though heavily obfuscated, contains the same malicious URL and benign-looking PDF filenames, suggesting a phishing lure for a fake document. The ML classifier strongly supports the malicious verdict.

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=nuevo+acuerdo+de+paz+pdf In PDF document text
    • http://files.cfhsperformingarts.com/uploads/1/3/0/9/130969659/jutarelukor.pdfIn PDF document text
    • http://files.topnotch-stitching.com/uploads/1/3/2/7/132711970/lenuziratopuroxu.pdfIn PDF document text
    • http://nudufutil.skylarkadventures.com/uploads/1/3/1/4/131437812/padetudipusobax.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/1/0432/9085/3540/files/45169013056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5918/2745/files/les_mills_combat_nutrition_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8602/0761/files/32983538716.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4098/7543/files/favemezizezu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1238/2117/files/dejugawa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3025/7568/files/kimajobokor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2476/7400/files/mapekukexo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0386/1416/files/bradford_white_water_heater_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/boguxexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4865/7311/files/32014799042.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9348/2902/files/71396296793.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 4

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_off000062ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62EA 5020 bytes
SHA-256: aed70b139321dbec449e5cbb92da0f04f9bb14774cd1920f41fb8146c848a041
font_01_sfnt_off0000742a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x742A 11644 bytes
SHA-256: db8dac6b8e64542374572338e14effc1c093e425ccfa070e0eb9d7be64a40e57

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