MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple heuristics indicating malicious redirection and a link farm, specifically pointing to a redirector URL that impersonates an antivirus download. The presence of a 'Password-protected archive handoff' heuristic suggests the document is designed to trick the user into obtaining a password for a concealed payload. The embedded URLs and the ML classifier strongly support a malicious classification.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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=antivirus+avast+free++2015 In PDF document text
- http://files.ventana-abierta.es/uploads/1/3/2/8/132814022/vonaxusuwis_bevikabesafob.pdfIn PDF document text
- http://files.good-saint.com/uploads/1/3/0/7/130775368/weraxorogijile.pdfIn PDF document text
- http://files.greatdunham.org.uk/uploads/1/3/0/9/130969085/momas_vamirin_navadatike.pdfIn PDF document text
- http://files.sommerranchbordercollies.com/uploads/1/3/1/8/131857758/8282465.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/1/0430/9975/0560/files/43533721596.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9535/9642/files/gutukixu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wexidemunuviviradepinitim.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/0112/4760/files/24486069783.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5765/9547/files/litepixaxogeniwireganer.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9562/9725/files/kukolajeximepiludej.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/19252536586.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5802/7928/files/bazizufipuvigomofe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6413/8651/files/posetetebekopow.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2579/1138/files/4912058048.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6782/4533/files/puzovigurirasiwerozesuri.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6230/5702/files/6109406999.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6397/5835/files/54613417108.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6420/4193/files/94424174252.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007192.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7192 | 5000 bytes |
SHA-256: 74143f6c8cd1048975d7379428a9743616dc193f8e4356e512be02e7f3a743f9 |
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font_01_sfnt_off000082a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x82A5 | 9952 bytes |
SHA-256: 6342b70281066d09eae4f4be3b477d7e9a1bb7a24beaa40deae73368f3a863d6 |
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