MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a large number of external links, identified as a link farm. The ML classifier and ClamAV heuristic strongly indicate maliciousness, with ClamAV specifically flagging it as a phishing trojan. The primary function appears to be redirecting users to a multitude of other PDF documents hosted on various domains, potentially for SEO spam or to distribute further malicious content.
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://druttle.ru/strik?utm_term=best+spider+man+miles+morales+comics PDF link annotation
- https://cdn-cms.f-static.net/uploads/4470843/normal_6029a33716810.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4385617/normal_602b581e611bf.pdfIn PDF document text
- http://lobulezinovux.medianewsonline.com/how_to_factory_reset_hp_officejet_4630.pdfIn PDF document text
- https://nepokotivo.weebly.com/uploads/1/3/2/8/132814168/1164401.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4452588/normal_5ff57ddd7527f.pdfIn PDF document text
- https://werumitepoli.weebly.com/uploads/1/3/0/7/130739038/bubetasoj.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4505820/normal_60360be872720.pdfIn PDF document text
- http://pimifawimonidij.mywebcommunity.org/norelco_aquatec_changing_blades.pdfIn PDF document text
- https://duguzimelape.weebly.com/uploads/1/3/4/6/134666192/devesavinidufilos.pdfIn PDF document text
- https://barijenevedi.weebly.com/uploads/1/3/1/4/131438420/zinum.pdfIn PDF document text
- http://fefiwizam.sportsontheweb.net/wutevuwur.pdfIn PDF document text
- https://jotutavujisab.weebly.com/uploads/1/3/1/1/131164129/tilemavevetux_lozaxanamese.pdfIn PDF document text
- https://tubozabuzimez.weebly.com/uploads/1/3/4/8/134878922/xukepepir_xugefowite_kosipamojebire_ganoveboxaz.pdfIn PDF document text
- http://gagimubu.mywebcommunity.org/misbehavior_of_markets.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4386337/normal_5ff09acab7cdd.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4452599/normal_601029ef4a984.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4495413/normal_60201a7b39b7a.pdfIn PDF document text
- https://bazigumaxofiz.weebly.com/uploads/1/3/5/3/135383162/lagafanuborusag.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4424400/normal_5fffb55ee68d2.pdfIn PDF document text
- https://buvewetaki.weebly.com/uploads/1/3/0/7/130775635/391d51d1a.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://kepagewav.atwebpages.com/harry_potter_-_hogwarts_castle_3000_pc_puzzle.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_off0000f023.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF023 | 5268 bytes |
SHA-256: 1bed0d95673a1c64ab825dffa30a6bff59229ed70286a7b6da2938c23d47b5a6 |
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font_01_sfnt_off000101f4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101F4 | 10656 bytes |
SHA-256: 44a417088346971a2926a7ac87d20abf6930f10d6ee855b9ca79a7d808947f62 |
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