MALICIOUS
244
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links to external websites, many of which are hosted on disposable domains and flagged as part of a link farm. One critical heuristic indicates a malicious redirector link, and another identifies it as a link farm on disposable hosting. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware delivery.
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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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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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://yafferge.ru/strik?utm_term=how+to+use+words+their+way+spelling+inventory In PDF document text
- http://xiwesesakuvel.medianewsonline.com/5930509999.pdfIn PDF document text
- http://vafutixon.22web.org/how_to_use_nderiv_on_ti_84_plus_silver_edition.pdfIn PDF document text
- http://fafuzum.sportsontheweb.net/83572455997.pdfIn PDF document text
- https://cdn.sqhk.co/xunijejozi/RgeKgcp/slimeatory_new_videos.pdfIn PDF document text
- https://cdn.sqhk.co/zatovafer/hiij5HA/free_printable_kitten_birthday_cards.pdfIn PDF document text
- https://cdn.sqhk.co/xagogudexo/iijBWhb/flight_simulator_2020_price_pc.pdfIn PDF document text
- https://cdn.sqhk.co/pafevola/je0pjFg/super_starfish_online.pdfIn PDF document text
- https://cdn.sqhk.co/birofinud/ajcjdjb/talking_tom_hero_run_game_download.pdfIn PDF document text
- https://cdn.sqhk.co/nisisepolo/fWsiebQ/skull_backgrounds_for_phones.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://40c507a3-37b7-491f-afd3-f28ba3af1fb2.filesusr.com/ugd/7f5264_ade9d0e56fda4b729944b704a7f3eabc.pdf?index=trueIn PDF document text
- http://fadezanunadafik.myartsonline.com/sofuwave.pdfIn PDF document text
- https://ad0d0dbb-669b-46a9-85df-79487014a0f3.filesusr.com/ugd/00d95d_a0a54355895040de81786ba993d3e389.pdf?index=trueIn PDF document text
- https://46c0acaa-de7d-4f46-84f0-c2cf1d8ff7d9.filesusr.com/ugd/ac1638_ca375d6a386d42d1ba2ae0fd6a217542.pdf?index=trueIn PDF document text
- https://0e9c393c-9feb-4465-ae9d-4486bea7a644.filesusr.com/ugd/4b68be_9ae6dc43d3ac47a0aded18a67e0599e4.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/0c2b40c6-d118-4617-b81d-68b16ad9b808/mefedanozutokuke.pdfIn PDF document text
- http://bimivopi.epizy.com/ajcc_breast_cancer_staging.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/cf4bd79d-d4f7-4aad-91fc-b280c9709217/omron_plc_programming_manual.pdfIn PDF document text
- https://45f91bdd-2b68-4e60-ae2c-b14373ae5332.filesusr.com/ugd/0d089b_83ea4cfa693647eb95e2805133dee3ea.pdf?index=trueIn 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_off0000f89d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF89D | 5436 bytes |
SHA-256: 41819da3bd4c021e4f2404f59a32b302fe60079973bccddd1b756e92eba2ac70 |
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font_01_sfnt_off00010b2f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B2F | 10880 bytes |
SHA-256: 0ffba42a6b71f3a88e57aadfcb9a145742b0914a1c0ae76308f8b63201b18426 |
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