MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many pointing to disposable hosting, suggesting a link farm or phishing operation. The primary URL, 'https://baarspo.ru/wix?keyword=endocrine+system+diagram+quiz', is likely a lure to direct users to malicious content or to gather information.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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://baarspo.ru/wix?keyword=endocrine+system+diagram+quiz PDF link annotation
- http://posiriwase.22web.org/game_theory_nptel.pdfIn PDF document text
- https://rejukikigukaw.weebly.com/uploads/1/3/5/3/135387704/tonosagurosuse.pdfIn PDF document text
- https://janejamav.weebly.com/uploads/1/3/4/8/134887015/mamerurupon.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://6d4a8fb0-9a8a-4850-8aa1-2b5706121c9a.filesusr.com/ugd/ff2e72_490b93e18f074a039df3927607ef33ed.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/ebd63528-a10a-4800-81ec-22832d069c83/ginezeminewaduke.pdfIn PDF document text
- http://lijifenesur.epizy.com/14569902952.pdfIn PDF document text
- https://e3e1c2aa-7f41-47b0-8c2f-d823cb48b857.filesusr.com/ugd/7598fa_4e322a8fd81343239f43db948cc23978.pdf?index=trueIn PDF document text
- https://9610c43f-1b2a-4a8a-b660-75aaf3908198.filesusr.com/ugd/286fb8_657d0d9c4e1f47a399ff579190c9a7a1.pdf?index=trueIn PDF document text
- https://858e1da1-ad31-4e5b-aec0-89c59c6c71f6.filesusr.com/ugd/6240f8_c3240a0fb26544e49ab10304c8dc53df.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/0a4d8cac-5fea-41b1-832a-45b6564b245f/lilobidajazedevi.pdfIn PDF document text
- http://gofekujapi.rf.gd/23668529371.pdfIn PDF document text
- https://16e729f2-8c5c-4787-b670-14aeba6c5e03.filesusr.com/ugd/ac55e2_1df0cecaef2d4ba9abf1d63c03f7c117.pdf?index=trueIn PDF document text
- http://repeputowuz.epizy.com/arjun_classes_physics_notes.pdfIn PDF document text
- http://novozozoto.epizy.com/66204538926.pdfIn PDF document text
- https://b3dfd9c9-1030-471f-a26d-814ea73dbccc.filesusr.com/ugd/d97afa_05f8268afb894cd992a61187e0ce2c5e.pdf?index=trueIn PDF document text
- https://dc58184e-bbba-402a-8e08-a55d552c8f3f.filesusr.com/ugd/0ebc1f_342752e7d8814371b5f5375789efb221.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/17fdd580-ad80-40d2-b99e-735ba006c251/a_simple_favor_book_sparknotes.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0924e20f-a2b8-420d-8287-ffc36af258b2/loresibanununok.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7267b5d0-cf00-4d2c-bf18-fa80038a0896/line_6_firehawk_fx_review.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b94d6de0-ee2e-4359-9d83-cdf43da9d53e/honda_rancher_350_tire_size.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_off0000e10c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE10C | 5464 bytes |
SHA-256: d6c09052889f870b580c3a15245eb632f1da41875d2861388581d9a2e48826a8 |
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font_01_sfnt_off0000f393.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF393 | 10704 bytes |
SHA-256: f74608a5f2472b22eed21bb1c1729c2db010e1f12bf5baf989c7ff0e8bba2d7b |
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