MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, many pointing to disposable hosting, and one specific URL is used as a lure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. No scripts were extracted, but the structure suggests a link farm designed to redirect users.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
Heuristics 6
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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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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 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://lozipotod.ru/strik?utm_term=ashrae+hvac+fundamentals+2013
- https://cdn-cms.f-static.net/uploads/4463825/normal_5fe7aece5d697.pdf
- http://zhigina.ru/how_to_determine_age_of_rheem_water_heaterfcgpk.pdf
- http://letnesil.xyz/juxag0hik7.pdf
- https://cdn.sqhk.co/dofexoxev/zMjh24s/zowozuxulafafelisebe.pdf
- http://aycotoro7.xyz/bomizopefhgmv.pdf
- https://cdn-cms.f-static.net/uploads/4501804/normal_601c99272ffd4.pdf
- http://vivadoctor.ru/2008_ford_escape_hybrid_battery_pricem6kjm.pdf
- https://cdn.sqhk.co/lepudijazur/ij0JXhd/elenco_filme_furia_de_titas.pdf
- https://cdn.sqhk.co/temetixufuxi/jH1PjLU/tide_tile_map_editor_download.pdf
- https://cdn-cms.f-static.net/uploads/4370063/normal_605443ed11314.pdf
- http://fontawesome.iohttp://fontawesome.io/license/
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://041f977c-1598-48cb-b578-3d63f550c8ab.filesusr.com/ugd/524ae3_e6b1c990d9f64914b62f1142d736a961.pdf?index=true
- https://8df9d1b7-8f6e-49e1-bdac-c9da4d4291fd.filesusr.com/ugd/12c198_8feb1f7ea4b74849a450adaaa8c42c74.pdf?index=true
- https://uploads.strikinglycdn.com/files/4bf51ad3-c6f1-4ac0-9070-86fdfa9035d3/rujevukikigezaxowin.pdf
- https://ff0b3df2-dc61-4aeb-9024-93fa9b5bc175.filesusr.com/ugd/aa14a9_8f903b3b008845b48e9b4f38fe8c8d10.pdf?index=true
- https://968bac2e-1409-45a7-bd11-2c37eba47390.filesusr.com/ugd/c81504_5d9e55f29f82403b9baee449ad3d84ad.pdf?index=true
- https://uploads.strikinglycdn.com/files/f1ea446b-1ba6-46b8-aeb9-28da2e7e089d/zegapelutob.pdf
- https://c8070bf9-ed42-4c5d-8eb8-ca35ee70f136.filesusr.com/ugd/d38238_86cd8d002c3b465c95a55476f695ec82.pdf?index=true
- https://1cdd1dcb-54a5-4750-95ad-c4cce9a68cd1.filesusr.com/ugd/1e32c2_c1a7245f255c4278b8c3451332ef3808.pdf?index=true
- https://6346cca1-8be9-442e-91e0-e35201572fa6.filesusr.com/ugd/a8c077_43a4454d883e46ee9c24ebf151c77c0c.pdf?index=true
- https://c751e6e8-0850-424d-b14e-d7ae46260796.filesusr.com/ugd/bc1028_712af4aa144b4d4db39a51dcfe8ea9c3.pdf?index=true
- https://uploads.strikinglycdn.com/files/746eac61-b45c-4047-b823-f6b92c38c86f/what_is_the_womens_role_in_the_bible.pdf
- https://df256b98-640c-444d-885a-8195c7360722.filesusr.com/ugd/40b9e6_ad24ba5671b04dea96b920beac688eef.pdf?index=true
- https://8eefcaf3-52f5-4123-8be5-b1f0aaeea45e.filesusr.com/ugd/1d3654_219a5aedf569449c858f457038ca395f.pdf?index=true
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
- http://scripts.sil.org/OFL
Extracted artifacts 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_006_off0001a154.binaed5c2df0181143b69dd8bc7bd7fedc1125d848881353325b5408c7c201f5cc3 |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x1A154 | 20640 bytes |
font_00_sfnt_off00015688.bincc90c79c64b3a01d8aa8530b688c572e363a30a42859d4255ec20da47c7bec48 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15688 | 1660 bytes |
font_01_sfnt_off00015e9a.bina17885b4fd577e0298a64705d5055d2ac7c2363fd7008e9cf236b3df412a17d8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15E9A | 2828 bytes |
font_02_sfnt_off00016894.bin6a9ee98ae7e0e00c49f8192a4bdac5ba3f88f840d52c928224a5566dbf77bc87 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16894 | 5800 bytes |
font_03_sfnt_off00017c31.bina7903822b46af419a88ba0ccd303e3b07753b399788f4de6e5474489a55c995a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17C31 | 10816 bytes |
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