MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of external links, many pointing to disposable hosting, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware delivery. The presence of external URIs and a link farm points to T1566.001 (Spearphishing Attachment) as the likely initial access vector, and the embedded nature of the malicious links suggests exploitation for client execution (T1203).
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://kuzutuzo.ru/strik?utm_term=idaho+state+hospital+south+history PDF link annotation
- https://finiluxib.weebly.com/uploads/1/3/5/3/135350298/nesenizagosawaxi.pdfIn PDF document text
- https://butiriretife.weebly.com/uploads/1/3/2/6/132681404/325aa9c51dfb1c.pdfIn PDF document text
- http://m-ryanaf.site/fasting_mimicking_diet_menu5ua8f.pdfIn PDF document text
- http://poopo.ru/5088896741149tjl.pdfIn PDF document text
- http://biniwitovo.mywebcommunity.org/22013061880.pdfIn PDF document text
- http://bupimobim.sportsontheweb.net/epidemiologia_clinica_fletcher.pdfIn PDF document text
- http://finofubamu.mygamesonline.org/jorelukawigubuka.pdfIn PDF document text
- https://filekudop.weebly.com/uploads/1/3/4/0/134017403/kujudogun_favusatotobedo.pdfIn PDF document text
- http://probkin34.xyz/mitsubishi_mr_slim_air_conditioner_cleaningmb73x.pdfIn PDF document text
- http://bumawusuka.mypressonline.com/48251461605.pdfIn PDF document text
- http://pawusewi.sportsontheweb.net/dnd_5e_character_sheet_fillable.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/3153c3e7-8ff1-48f3-a68d-aa071e058861/harry_potter_and_the_order_of_the_phoenix_trailer_2007.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0da3377d-62ef-466f-8a2d-fb63dedf1c30/21016119668.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c17b006e-ff73-4435-90d7-9d69be2f103c/can_you_do_weight_training_with_just_dumbbells.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b4ff01c4-091a-4c8b-a5a8-fe2c51bfc8b7/the_apology_act_was_passed_in_2009.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a00ef2ef-0b4d-4a32-9e69-ec20e18d2c58/67630465719.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/661c3426-69c3-45a5-ab95-186d668b4e06/35934182228.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4683c3de-b655-42c9-9ad2-1cade1fe1208/19456599746.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/557350e9-12ca-4f4f-9c6e-038d7ce996b7/how_to_wear_a_mask_properly_poster_cdc.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c4d7e894-e564-4731-8e9d-599a0cd83907/is_the_phrase_hard_as_hell_or_hail.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_off0000ecc2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECC2 | 5088 bytes |
SHA-256: 199a8a5702ef7795214129f0f7b5672040a79268fde612153befcca4b8099044 |
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font_01_sfnt_off0000fe0b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE0B | 10640 bytes |
SHA-256: a9a5ee2503ad9beb4dcced9211a0c9d0aafa58cf8dbe971a5195565cc7596ab3 |
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