Malicious PDF — malware analysis report

Static analysis result for SHA-256 1100d479d8ab3202…

MALICIOUS

PDF

42.4 KB Created: 2020-08-04 07:05:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b5a56c2f243902157fe9f0bd3708e236 SHA-1: 0addf0b9c188f7f2a8d9b02bcb2754f7b7e80285 SHA-256: 1100d479d8ab3202654380c73d538bf2c01cf46484fdb669f3c20a00f73a9d09
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous embedded links, many of which point to redirector infrastructure designed to lead users to malicious content. The document's content and embedded links suggest a phishing or scam attempt, likely aiming to trick users into downloading further malware or divulging sensitive information. 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.com/pify?keyword=tipo+de+estudio+descriptivo+cuantitativo+pdf In PDF document text
    • http://files.trojanpathways.com/uploads/1/3/2/6/132683330/mukigaxoduranifa.pdfIn PDF document text
    • http://files.lamsperspective.com/uploads/1/3/2/8/132814071/rusan.pdfIn PDF document text
    • http://files.clemsongammaphi.com/uploads/1/3/1/3/131379059/kololoza.pdfIn PDF document text
    • http://files.paulspipes.com/uploads/1/3/0/7/130776206/tegivo_motevelamemume_lidewexasuwi.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/kovutuku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9521/2697/files/lupawufotupuzitufad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0057/6669/files/38989125493.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9289/4115/files/48752567817.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3328/8088/files/finavelonitew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5611/1520/files/68385273317.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7087/2986/files/44683833351.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7278/2489/files/43282173922.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6988/8929/files/irreplaceable_beyonce_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8326/0314/files/wajituwuvin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6516/1366/files/51286405826.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5061/4429/files/87087905099.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0379/7916/files/left_riemann_sum_calculator.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 8

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_off00006660.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6660 5128 bytes
SHA-256: 3369b5de0b49a0feca9eb88f8caabbc297319af2df0f52cdafe80fec5773e998
font_01_sfnt_off000077ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77EA 10788 bytes
SHA-256: 0aa7683c3aee40c616d4bd84193cc0ff9e4798f148244449e29aac7a6a8fd476

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