MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple heuristics indicating malicious redirection and a link farm, specifically pointing to a redirector URL. The document body, though heavily obfuscated, contains the same redirector URL and a benign-looking PDF filename, suggesting a phishing lure for free downloads. The ML classifier strongly supports the malicious verdict.
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=yasin+sharif+pdf+download In PDF document text
- http://files.mattieullrich.com/uploads/1/3/0/9/130969565/nemaropalidifun.pdfIn PDF document text
- http://files.jessicasnyderedits.com/uploads/1/3/2/7/132740892/8852695.pdfIn PDF document text
- http://files.vickigunter.com/uploads/1/3/2/6/132681336/9690444.pdfIn PDF document text
- http://pekepupi.maconcountyveterans.org/uploads/1/3/0/7/130738720/nojemigukumotitajug.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/1/0437/4121/6919/files/49663442976.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2152/3349/files/acordes_de_guitarra_para_principiantes_canciones.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2761/8209/files/emotional_development_theories.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2490/7414/files/96187134572.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8022/8757/files/benzetacil_bula_profissional.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7564/1247/files/12398999689.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6641/7571/files/naxilovik.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3237/1622/files/wawefunopaposisaxusemofe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9660/4825/files/battle_gear_2_mod_1._7._10.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3350/9534/files/20622328785.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8175/0941/files/22384569155.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5795/5487/files/p90x_classic_schedule.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2561/2450/files/76751575934.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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 |
|---|---|---|---|
stream_005_off00009b30.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x9B30 | 22684 bytes |
SHA-256: cc710aa2010c7bde279670aaa8a40c41b6760723fda0f7dc773c41ba9f2eadeb |
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font_00_sfnt_off00006730.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6730 | 5180 bytes |
SHA-256: a5b5312e6b4d11d99659d8cae4ffc6801695e436a608398c7679e66c30a4e829 |
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font_01_sfnt_off000078dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x78DC | 9976 bytes |
SHA-256: 4534a62f70ca89d5b1cd4dec94d17c0a6fae41988c0dcc6e23c645278a9cd140 |
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