MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by multiple critical heuristics indicating malicious redirector links and a link farm. The ML classifier also strongly indicated maliciousness. The document body contains numerous URLs, with one pointing to a known malicious redirector, suggesting a phishing or SEO spamming attack. No scripts were extracted, limiting the analysis of direct payload delivery.
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.cc/pify?keyword=cours+d+espagnol+d%25C3%25A9butant+gratuit+pdf In PDF document text
- http://files.sweetavenuephotographyblog.com/uploads/1/3/1/8/131856112/5936769.pdfIn PDF document text
- http://files.stuclements.com/uploads/1/3/1/3/131379844/bepul-momukitaxupor-mowidegez.pdfIn PDF document text
- http://files.columbianow.org/uploads/1/3/1/4/131438405/dojinoserowe_gajokax_fitamivagumed_botejodevabiras.pdfIn PDF document text
- http://files.loveadelyn.com/uploads/1/3/1/3/131384604/1988225.pdfIn PDF document text
- http://bizurireb.jaymcclellan.com/uploads/1/3/2/7/132712358/xilowigupifuvodonep.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/1/0433/5481/6665/files/zorurezokerofowidoma.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8555/3059/files/catholic_university_of_malawi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5396/3678/files/wozidijaje.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1087/5815/files/dotokevadawasug.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5340/8675/files/10612663752.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1185/0918/files/48041075079.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9892/2392/files/donin.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5501/4298/files/naloduvamewakerulatimif.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2562/0374/files/mabolinitus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6525/2771/files/pezovetebewuzugavufafe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1283/3959/files/40200738618.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8897/7813/files/razuf.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
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000805d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x805D | 5396 bytes |
SHA-256: 34e46b77ac85fc1762ff788fd67d059565d5f1988a26c524791dbb8c12a5b31e |
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font_01_sfnt_off0000926d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x926D | 1800 bytes |
SHA-256: a36eee06fef6ce219692c4ec918276ac99413e4fd1e3666e4031624f9289d620 |
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font_02_sfnt_off00009afa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9AFA | 17256 bytes |
SHA-256: 660a44292e50faebe78058d18c72df53f7cc57209b5fcbf090a3319b8ad8a68a |
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