MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains numerous links, including one pointing to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'definite and indefinite articles exercises worksheets' and the malicious URL, suggesting a lure to disguise malicious activity. The ML classifier strongly flagged this PDF as malicious, and the presence of a link farm indicates an attempt to distribute 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/wb?keyword=definite%20and%20indefinite%20articles%20exercises%20worksheets In PDF document text
- http://files.roberttally.com/uploads/1/3/2/7/132740249/9731011.pdfIn PDF document text
- http://files.childrenspiazzapeabody.com/uploads/1/3/1/3/131397964/povama.pdfIn PDF document text
- http://files.cafeokawari.com/uploads/1/3/1/3/131384663/vifaf_lalaxel_dokimot_dulavemefolinu.pdfIn PDF document text
- http://files.gilsonns.com/uploads/1/3/1/3/131398367/datiravezoxe.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0432/5762/6792/files/22155499419.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1778/9862/files/baduwulofibafelime.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3139/5493/files/80750216577.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0677/8784/files/74524891183.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2703/6322/files/probability_concepts_in_engineering_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8126/0440/files/buxesabekokafatemox.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4054/6714/files/wufumituvolupaf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4832/8603/files/fefenipumatufomofe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2886/4409/files/weluwunezulelabomane.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/binoluso.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1752/7715/files/nogapexuvekefisoluvugigib.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0839/2353/files/vajinatobajifawewik.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0268/2789/files/47602249479.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
🗂 Part of campaign:
cafeokawari.com
3 samples
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000060eb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x60EB | 5120 bytes |
SHA-256: bc13898fa5e12b44685cccf718fc00bcd076f268fdf7bc18f267725ba99f7b93 |
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font_01_sfnt_off0000725d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x725D | 10060 bytes |
SHA-256: d31e325f82e526e95b17a706a067f69add983f9b637bcb4becca9e11737e8092 |
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font_02_sfnt_off000094cf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x94CF | 4324 bytes |
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
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