MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, also contains this URL and references 'logarithm problems and answers pdf', suggesting a lure. The PDF also features a link farm heuristic, indicating a large number of external links, many hosted on Shopify. The primary malicious IOC is the redirector URL, which likely leads to further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF 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.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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=logarithm+problems+and+answers+pdf In PDF document text
- http://files.oldmanfreakboy.com/uploads/1/3/0/7/130776416/buwuwazoniwekik.pdfIn PDF document text
- http://files.fully-cooked.com/uploads/1/3/0/8/130814644/gokotivizefojo.pdfIn PDF document text
- http://files.nestonhockey.co.uk/uploads/1/3/0/7/130738881/gasawujasawujisal.pdfIn PDF document text
- http://pisusij.bluegoosequilts.com/uploads/1/3/2/6/132682076/4948456.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/1/0429/5501/4297/files/sonixapetibedikajuver.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/2734/7109/files/nuduvavojibidoj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4306/1909/files/gatiranimewikarisigofol.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/3573/5717/files/kijepimafetasivag.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/6163/9318/files/gcse_circuit_symbols.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xizijifopaxefiz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3120/6808/files/lujejodosoradumumobunutu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8870/6717/files/rupaxubalipuvakomekefo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/9376/7832/files/adverbial_clause_of_concession.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8205/5842/files/how_to_delete_branch_on_github.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5782/4419/files/fidapadafelopekizufaso.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3640/8982/files/govazepiperogutowugofit.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000772c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x772C | 5628 bytes |
SHA-256: 83dd1a8c1e83225477d02f45dd0109621f4e9f98e627d22288598e8e16268b36 |
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font_01_sfnt_off00008a3e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8A3E | 13560 bytes |
SHA-256: 4db7d9c07132bbd1cfd3efced082f7298c911381ce57a69a7d9f7b5552bd9c72 |
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font_02_sfnt_off0000b57e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB57E | 16204 bytes |
SHA-256: 95f2a8319533f051e584a9e2aa38e8d42f7eb419abe795cf0dce2d6390e2c0a0 |
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