MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The file is identified as malicious by ClamAV and an ML classifier, and heuristics indicate it contains a large number of external links, suggesting a link farm or phishing attempt. The document body is heavily obfuscated, but the presence of URLs and the 'PDF_SEO_LINK_FARM' heuristic strongly suggest the primary purpose is to redirect users to potentially malicious or SEO-abusing websites. No scripts were extracted, but the PDF structure itself facilitates the redirection.
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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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://druttle.ru/123?utm_term=guidelines+for+hepatic+encephalopathy PDF link annotation
- https://cdn.sqhk.co/merabuvi/hggbFmf/spanish_course_book_for_beginners.pdfIn PDF document text
- http://bepifukikuku.mygamesonline.org/modelo_de_certificado_de_inspeccion_tecnica_vehicular.pdfIn PDF document text
- https://cdn.sqhk.co/wevexifimur/gdDEhc1/ic_urban_dictionary.pdfIn PDF document text
- https://cdn.sqhk.co/guvevifowo/pidEFhf/download_mix_master_dj_game_mods.pdfIn PDF document text
- http://xufuzema.sportsontheweb.net/cash_book_in_tally_erp_9.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/b3720096-2b1b-4fd0-b952-efab7e21c9f0/pepigizipexuzasejit.pdfIn PDF document text
- https://ba30dffa-51fe-4caa-9472-6f142403a9bb.filesusr.com/ugd/c2007e_fe37c33f3dad43c2b4148bfa719ad4ca.pdf?index=trueIn PDF document text
- http://gemovimuwopete.atwebpages.com/monaviridoverukemob.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/965aab5c-3e7a-4e28-a704-e3f9018b3ae7/how_do_you_measure_life_in_a_year.pdfIn PDF document text
- https://47e4df30-8702-49a4-8bd5-327e1546ff06.filesusr.com/ugd/379272_5c63db5e1c3348ce8875bf7a2bf895d0.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/navoburarovada/captain_fantastic_sweet_child_o_mine.pdfIn PDF document text
- https://6c639bf1-704a-4500-b661-329758898742.filesusr.com/ugd/02d620_d21a7fe15cda46cf995b15df0d68c7c6.pdf?index=trueIn PDF document text
- https://51f47fa2-20f7-4ec4-bb91-8ae4aee689b4.filesusr.com/ugd/917232_17c4d4ebb2ad4e89be3ee1e06538fa33.pdf?index=trueIn PDF document text
- https://4a39c6c9-989b-4d11-b2d8-cc0becc7f193.filesusr.com/ugd/ef0078_11526dac1de9475b82ccf003487fb4fa.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/79d376dc-0dda-49eb-834a-86e4188d757b/which_one_is_an_example_of_a_conceptual_model_in_science.pdfIn PDF document text
- https://9e2901ea-5d25-41a5-867c-54d0774c6e48.filesusr.com/ugd/4d0f37_9bcc1bd59b6e4b83b5ee0deb7a955e06.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/d7f6c9aa-a1f8-482a-bae0-020d95f79435/24987529033.pdfIn PDF document text
- https://5b949be5-44ef-49af-96c7-0ebaa8fe632e.filesusr.com/ugd/3402b1_9d51a9a3b70944b8ba4a6430a4ad1809.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/babetafaperaxov/biztalk_server_2016_tutorial.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_off0000de76.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE76 | 5376 bytes |
SHA-256: 2d50602d9ca3c73af785d96ba6df299b28c91b112b5c737b4c4cee2c70619f59 |
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font_01_sfnt_off0000f0c4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0C4 | 10148 bytes |
SHA-256: 6e12a8d5dbecb6917d4c745e3192a8ff51d07475e5a9a11d865666e656866e42 |
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