MALICIOUS
126
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, with heuristics indicating it functions as a link farm on disposable hosting. The embedded URLs, such as 'https://nipisod.ru/award?keyword=refraction+by+a+prism+pdf', likely serve to redirect users to malicious sites. Although no scripts were explicitly extracted, the PDF structure and URL patterns suggest a phishing or malware distribution attempt, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 5
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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://nipisod.ru/award?keyword=refraction+by+a+prism+pdf PDF link annotation
- https://static.s123-cdn-static.com/uploads/4470552/normal_5fdd3e79857b5.pdfIn PDF document text
- https://cdn.sqhk.co/zaviresodew/8Lhbfii/xavubum.pdfIn PDF document text
- https://cdn.sqhk.co/dukoredod/hgZCig6/pirar.pdfIn PDF document text
- https://cdn.sqhk.co/vazoguzo/ijBjgbJ/national_geographic_subscription_services.pdfIn PDF document text
- https://cdn.sqhk.co/riwutosax/cjgicfL/34527824631.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4503390/normal_60159c6b7c1fe.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://renirorevebu.epizy.com/80701363302.pdfIn PDF document text
- https://4cf2acc4-d143-4013-a78d-f21de0873c4f.filesusr.com/ugd/e4636f_2ebafa02b89e4937bcce7e41722daa93.pdf?index=trueIn PDF document text
- https://cd753cf5-d90a-4073-9c55-931a76e81761.filesusr.com/ugd/8826df_2b02d168210e45f2b1bd1c475f8e59fd.pdf?index=trueIn PDF document text
- http://bexudogi.rf.gd/41759508542.pdfIn PDF document text
- https://s3.amazonaws.com/wujixus/the_laramie_project_cast_list.pdfIn PDF document text
- https://5e54824a-8208-41b0-8aeb-7c017e8cfb46.filesusr.com/ugd/f64db8_fc4493db9f754f77b1d2f259b19dc4ad.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/a41964c4-a174-46a3-9a72-2f867319b08c/how_to_hook_up_my_surround_sound_to_my_samsung_tv.pdfIn PDF document text
- https://75a697d3-84f0-44cf-bab9-f05e37020c50.filesusr.com/ugd/7c3584_094402c7ae3c4e18b9ba4bd65ea8ed59.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/2e720aa2-f055-4f31-b185-1001af8c9fb3/dirt_bike_125cc_2_stroke.pdfIn PDF document text
- http://fogaweja.epizy.com/briggs_and_stratton_17.5_hp_intek_engine_oil_capacity.pdfIn PDF document text
- https://6f465708-eb37-4ee2-8658-ebeec6cd93ea.filesusr.com/ugd/4bb103_2831633c71b9416eb2e70842a277dd96.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/wamatasamegu/wings_of_fire_dragon_tribe_test.pdfIn PDF document text
- https://s3.amazonaws.com/bitizopovopaso/datapadazivedajerutu.pdfIn PDF document text
- https://s3.amazonaws.com/godewumazek/ben_carson_biography.pdfIn PDF document text
- https://s3.amazonaws.com/zamuriza/26730319026.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e3bf8c85-c92f-42ac-8983-0d9ff69e36e3/vuwinajid.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/956b5d8f-edcd-4850-b8ec-e4ddbb69791b/the_ultimate_guide_to_the_thoth_tarot.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fafb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFAFB | 5520 bytes |
SHA-256: 5a03bd138708776efea6e317eeb2e46bd7df8fb548f27c35064746bc58f0ba8c |
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font_01_sfnt_off00010daf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DAF | 12648 bytes |
SHA-256: 345f2dc061cc783d9ae2a1d810a9e8e32b968d55e773eda061f0398cf35103d8 |
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font_02_sfnt_off00013911.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13911 | 16156 bytes |
SHA-256: 2c640d8d121a3b2e9b57ba78e63eb1acad9a5c64a9425dd6be3abc5a33dc54ed |
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