MALICIOUS
254
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links designed to appear as legitimate resources, but a critical heuristic identified a link to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'free online marathi books download pdf', reinforcing the lure. The presence of multiple SEO-optimized links suggests an attempt to broaden the reach of this phishing campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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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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://dafemum.ru/award?keyword=free+online+marathi+books+download+pdf In PDF document text
- https://cdn-cms.f-static.net/uploads/4424405/normal_6032967d0f5c3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4412408/normal_5fea40b45c8a8.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://1618b3f4-dcc0-4047-a816-eeb1cbe43c51.filesusr.com/ugd/a01749_110551b4e5b64ea4a3bea1272f3846a2.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/poguvelefa/jbl_flip_5_bluetooth_speaker_walmart.pdfIn PDF document text
- https://s3.amazonaws.com/tobobowu/78219268112.pdfIn PDF document text
- https://s3.amazonaws.com/bibejovixapis/legendary_game_of_heroes_card_guide.pdfIn PDF document text
- https://s3.amazonaws.com/zevutebulaworel/24081489116.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/79a10430-c9c4-4cc2-9373-8d44bb15911e/how_do_you_clean_a_dyson_vacuum_filter.pdfIn PDF document text
- https://s3.amazonaws.com/bovenotojitowe/striped_sheets_target_australia.pdfIn PDF document text
- https://34e223d5-b18a-4f89-96b3-7c58aa965d90.filesusr.com/ugd/440e29_b8aff3f46aa74c9b828c2539da9234de.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/lomuper/7219002585.pdfIn PDF document text
- https://41fe7446-7195-45c8-906d-de5e784989f9.filesusr.com/ugd/e02969_f5dc1a781129460798d43078030c745d.pdf?index=trueIn PDF document text
- https://9cfe8934-cc69-4f76-a0d0-2e9849ea4530.filesusr.com/ugd/fd9558_9534815ac1f047cdbcac3f3c359d2779.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/78ab83f9-1849-4f30-aac3-be2a1d11444d/how_to_prevent_cliff_erosion.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/11fb3d6d-f437-4c09-a7db-2ef4b353b5f9/the_chronicles_of_narnia_prince_caspian_movie_cast.pdfIn PDF document text
- https://s3.amazonaws.com/jajoxulabojaso/how_to_set_up_a_magazine_business.pdfIn PDF document text
- https://s3.amazonaws.com/jarirotexab/greek_myth_books_for_young_adults.pdfIn PDF document text
- https://s3.amazonaws.com/wupixufekijax/91317423539.pdfIn PDF document text
- https://s3.amazonaws.com/vipinib/hotel_building_vector_free.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_off0000e751.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE751 | 5532 bytes |
SHA-256: 0e9bea822f688e28be4da99b87b56589851d8dd5709b2387dbc8fbcecc793d33 |
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font_01_sfnt_off0000f9fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9FD | 10400 bytes |
SHA-256: 2440abaae901b514ebd3f6b2945806ccea8f69078321c6d401d26fe25c7aef95 |
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