MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was identified as malicious by ML classifiers and ClamAV, with multiple heuristics indicating it functions as a link farm. The embedded URLs, such as 'https://queure.ru/uplcv?utm_term=cyberpunk+2077+game+apk', suggest a lure to potentially malicious content. The PDF structure and numerous external links point towards a phishing or malware distribution attempt, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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 link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://queure.ru/uplcv?utm_term=cyberpunk+2077+game+apk
- https://cicimanis.com/contents/files/rosugunisijezoxalepubube.pdf
- https://homeuu.biz/upload/ckeditor/pages/files/ruvexu.pdf
- https://m-isc.com/userfiles/file/23362850715.pdf
- http://rebornfair.com/FileData/ckfinder/files/20210913_58089CB97939EBFA.pdf
- https://paymentor.nl/uploads/file/jikufe.pdf
- http://secureyun.cn/uploadfile/file///2021091606283027.pdf
- https://www.pactforfamilies.org/ckfinder/userfiles/files/gitokuduburonimezevirera.pdf
- http://naplesredeals.com/userfiles/files/70603584368.pdf
- https://radekslodkiewicz.pl/files/file/wokezakuwesagul.pdf
- http://abwcrainhwy.com/uploads/files/95557729029.pdf
- https://vntdc.com/upload/fck/file/5065726462.pdf
- http://steclotildehorton.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613b4cf29b49a---wapepugepiga.pdf
- http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161358990ed480---96806204170.pdf
- http://mycoapaisyl.com/webimages/files/maxefugabedivagebok.pdf
- https://ultralloy.net/upload/files/74221767684.pdf
- https://alkhairi.co.uk/wp-content/plugins/super-forms/uploads/php/files/0282f83951ebee90b7ad138c5ba3309c/tewakewogogepotopap.pdf
- https://kisikana.hr/UserFiles/files/34969610187.pdf
- http://aci-immobilier-douai.fr/userfiles/files/6505212117.pdf
- https://lescourailleurs.com/upload/editor/file/walewimaxafinabapubiseb.pdf
- http://www.physedu.in/newsite/userfiles/files/34407164421.pdf
- http://facyt.com.ar/ckfinder/userfiles/files/55270472846.pdf
- http://www.goataxiservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613890ba2c56e---30451903618.pdf
- http://abwclayton.com/uploads/files/gikubosomomawuxunob.pdf
- http://tao-oita.com/admin/upload_filesfile/45455402472.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d9cc.bindea9c7a9277000f6acfeb93c21d38c646dfe002738e5f1e25e0e4afb833833e0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9CC | 18308 bytes |
font_01_sfnt_off0001095a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1095A | 16792 bytes |
font_02_sfnt_off00012171.bin54ac5b6686489489b2de1b278d1f64c583df5ea615ce2d266fb4cdfd8c89f287 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12171 | 10840 bytes |
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