MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous external links, many pointing to PDF files hosted on suspicious domains, suggesting a link farm or SEO poisoning tactic. The heuristic 'PDF_SEO_LINK_FARM' and 'PDF_SEO_UTM_REDIRECTOR_LINK' indicate a lure to download files, likely for phishing or malware distribution. The ML classifier and ClamAV detection further confirm the malicious nature of the document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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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External URI info PDF_URIPDF contains an external URL action
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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://zajinet.ru/award?keyword=annotate+pdf+windows+10+free PDF link annotation
- https://cdn.sqhk.co/tovasodoj/aZRBgd7/shake_shack_menu_prices_las_vegas.pdfIn PDF document text
- https://cdn.sqhk.co/mowezeto/ejdjdAf/wudojejiputove.pdfIn PDF document text
- https://cdn.sqhk.co/ruwonumatag/ehjjjBz/battlelands_royale_skins_hack.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4409826/normal_6063d38b9be37.pdfIn PDF document text
- https://cdn.sqhk.co/vomisape/jd4Ouhe/war_of_independence_usa_battles.pdfIn PDF document text
- https://cdn.sqhk.co/soxuvezosapa/ohfciaa/dead_cells_ram_rune_guide.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4424024/normal_601a6416e473a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4389384/normal_60391d7aa6a71.pdfIn PDF document text
- https://vajipexinonadol.weebly.com/uploads/1/3/4/0/134096003/488179.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4416327/normal_60598189c4ccc.pdfIn PDF document text
- https://cdn.sqhk.co/xumupojamax/vgghfjO/pepitakudokitojamamov.pdfIn PDF document text
- https://jabasamivesapev.weebly.com/uploads/1/3/4/0/134041177/76b08.pdfIn PDF document text
- https://munipisovefi.weebly.com/uploads/1/3/4/6/134645568/9092296.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4407983/normal_601f9d5ae5484.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/cd296709-ea04-4789-bd74-9248ff210b3a/how_to_clean_dishwasher_filter_whirlpool_quiet_partner_i.pdfIn PDF document text
- https://s3.amazonaws.com/badodemebo/sadununogimix.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d311c606-292e-4885-adad-d8d28d1fef90/taco_bell_creamy_chipotle_sauce_nutrition.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/81b2d1c8-63fc-4719-a92b-3c00b9b09f91/61518630716.pdfIn PDF document text
- https://s3.amazonaws.com/lopadivupudexa/honda_rebel_250_weight.pdfIn PDF document text
- https://s3.amazonaws.com/muxozuvalubi/bluestacks_for_laptop_windows_10.pdfIn PDF document text
- https://s3.amazonaws.com/verirejon/how_do_you_capitalize_an_asset.pdfIn PDF document text
- https://s3.amazonaws.com/pegozegi/53554794506.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/45278f56-1849-4593-9638-08d02e043ccd/what_are_other_words_for_bestow.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_off0000fe3e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE3E | 5276 bytes |
SHA-256: f8939eeede2ca426f14b6a8311e98d1032aaed9d2b70dd054026d78d3b3bfb4e |
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font_01_sfnt_off0001105c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1105C | 11168 bytes |
SHA-256: 44bd3690a44f366d8bdb3313e4abbb5756f3317a53187182bc196d8a76668487 |
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