MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 Malicious Link
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to suspicious domains and are flagged as part of a link farm. One critical heuristic identifies a link to a known malicious redirector. The document body, though heavily obfuscated, contains a query related to 'how do I restart my fitbit versa' and the malicious redirector URL, suggesting a lure to a phishing or malware distribution site. The ML classifier strongly indicates maliciousness.
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/wb?keyword=how%20do%20i%20restart%20my%20fitbit%20versa In PDF document text
- http://xusuluxu.soundteaching.net/uploads/1/3/1/6/131607062/1047736.pdfIn PDF document text
- http://dolivarus.lisareimann.com/uploads/1/3/0/7/130775735/8561474.pdfIn PDF document text
- http://files.hoghunting.ca/uploads/1/3/0/7/130776150/rakakajula.pdfIn PDF document text
- http://geseta.cdostem.org/uploads/1/3/1/8/131856022/lopadazorovanoduzi.pdfIn PDF document text
- http://files.renatakerr.com/uploads/1/3/1/4/131437834/vafunes.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/1/0430/6305/0394/files/makalah_pengertian_agama_islam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1275/8426/files/sejalidekekufeduresekade.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1008/8360/files/7978025733.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2486/5685/files/jetibevakaxeniwog.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0088/7457/files/wazomara.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8706/8322/files/amman_tamil_movie_climax.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3707/3314/files/9329958213.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/9978/1275/files/xirexufeme.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2252/3288/files/47916628010.pdfIn PDF document text
- https://0de33dc8-1ae5-4bbf-a096-1e979bd6bd81.filesusr.com/ugd/23b571_1a5b9c5ed3834b8792f7d47850700497.pdf?index=trueIn PDF document text
- https://c77899f8-87de-4b5f-bd15-bc06ccf0d1b8.filesusr.com/ugd/501a20_62290c5bffe44409a8552747d0caf221.pdf?index=trueIn PDF document text
- https://12a6f8a0-71d2-4198-bba5-5991085852ed.filesusr.com/ugd/64f9d2_95c3daed38a5488d9dd4ee416b9e6729.pdf?index=trueIn 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_off00006cad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6CAD | 5056 bytes |
SHA-256: cefdb4833e13b76974402731cbecfad38d6afa0a8893c521d4696682417565ef |
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font_01_sfnt_off00007dfe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7DFE | 10324 bytes |
SHA-256: c6ec5e8fcd701400bc8e4d76bb170413e16dc695df98048a3b907a4950dcff2a |
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font_02_sfnt_off0000a16b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA16B | 4324 bytes |
SHA-256: ad623bc7c681097dfa1224999cf6cc6072d3ca9a137655dc1129b0261f0b357c |
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