MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links, many pointing to compromised WordPress sites and disposable hosting, suggesting a phishing or malware distribution attempt. The presence of a PDF_RANDOM_URL_LINK heuristic and ML_NYX_PDF_MALICIOUS classification strongly indicates malicious intent. The file's purpose is to redirect users to external URLs that likely host malicious payloads or phishing content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 7
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://krisoc.ru/uplcv?utm_term=harry+potter+part+3+movie+download
- http://preserveproperties.com/userfiles/files/54346267689.pdf
- http://ecbpolska.pl/wp-content/plugins/super-forms/uploads/php/files/58e786413736187836b8c28f14985c55/59879463304.pdf
- https://dipinkrishna.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d8c3d21504---fenuwonira.pdf
- https://www.hintonassociates.com/wp-content/plugins/super-forms/uploads/php/files/88815c17fcfff78613357a8542c6da35/buramotipagurifuko.pdf
- https://szabobuszberles.hu/files/files/gevogizurerufagigopi.pdf
- https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1606d68e1e8bd4---35643175314.pdf
- https://ludifrance.fr/userfiles/file/45732644404.pdf
- https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607780e4ef2dc---84839611295.pdf
- https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/9icq5kki4gpata84e8acln7c3r/lavisoza.pdf
- http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9639dc46c---wakuxik.pdf
- http://videofilm-tv.ru/content/File/31343698205.pdf
- http://ongnuocdenhat.com/upload/files/57808015751.pdf
- http://www.franklinwebdesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160997c5ce4b1e---namadulezawat.pdf
- http://anhuifan.com/upload_fck/file/2021-6-1/20210601141141590342.pdf
- http://russia-ex.com/pirowetujusu.pdf
- http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/160b0554b0ea32---tujipewerivasadego.pdf
- http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094ca85d9c60---bavezogulerelifop.pdf
- http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082aa7875a2e---xepegemipuguravubaxi.pdf
- http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5e2a11d4dd---74600564365.pdf
- https://haps.company/wp-content/plugins/super-forms/uploads/php/files/nh9e7jiirh5a34ki2qkbq3m846/susev.pdf
- http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160907c6e23901---kebenowove.pdf
- https://nowackleverkusen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a8a146bff76---27367118071.pdf
- http://healthywithhart.com/res/file/demodimugajekefiki.pdf
- http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080a2f51704d---kitiminazajojoneful.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_off0000bef0.bin010f9a9bc6a0656b0e12b09cbd44753f675050ddbf285a35c111967c757f4aea |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBEF0 | 10816 bytes |
font_01_sfnt_off0000d7e2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7E2 | 16792 bytes |
font_02_sfnt_off0000eff4.bind5a2ccde85f769c86239ddeeb329570ac0d910b42b488b077e3203011287bf70 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFF4 | 16564 bytes |
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