Malicious PDF — malware analysis report

Static analysis result for SHA-256 47c6cc837ceee33a…

MALICIOUS

PDF

35.3 KB Created: 2020-08-19 18:02:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 98d8a3f78526331d529e40eec762009d SHA-1: 7af9f674dfeb36797872bcd39653cf824d39eac8 SHA-256: 47c6cc837ceee33a1c74d1b7d2554c5b53ecb499134008d4b4cf36bbf3ed84c4
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many hosted on Shopify, designed to appear as legitimate resources. One critical heuristic identified a link to a known malicious redirector at 'ttraff.com', which is disguised with a lure related to 'birthday homework pass template free'. This suggests the document's primary purpose is to redirect users to malicious infrastructure, likely for phishing or malware distribution. The ML classifier strongly supports the malicious nature of this PDF.

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=birthday+homework+pass+template+free In PDF document text
    • http://nimeti.echeloncatapult.org/uploads/1/3/1/3/131379803/muvevilaxiridi.pdfIn PDF document text
    • http://files.dublinbirding.com/uploads/1/3/0/9/130969440/dapegemon.pdfIn PDF document text
    • http://files.lindaswannpaintings.com/uploads/1/3/0/9/130969389/nerakekivurilex_xinoxuwezete_poliwe_kulopos.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/1/0429/6635/2025/files/wirodow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9018/1286/files/gukekuxosunitinunesuro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7341/4055/files/64987968754.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1798/4405/files/hk_dass_mathematical_physics_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/8245/3926/files/mathematical_economics_and_econometrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0053/4952/files/kerepese.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8794/4094/files/71513423628.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5124/5987/files/35205831944.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nazowexoratusitufunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4607/4525/files/83032789672.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9154/2681/files/xekinowivizalulumujulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7881/0789/files/jemojakelu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6249/1286/files/24180318347.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3983/3767/files/convert_mkv_to_mov.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 5

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_off00004bad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BAD 5588 bytes
SHA-256: a4d140dd52af40848b707d31364bf15ff16ffc62fa28e8f1f654226f14c1090e
font_01_sfnt_off00005ea8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EA8 9804 bytes
SHA-256: 4c2a922a90be5a36866b5769097821c7e4fc5adc101590e9f69168d9117c5c6a

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