MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains a link farm pointing to multiple compromised WordPress sites, likely serving as a lure to phishing pages. The presence of numerous external URIs and the PDF_SEO_DISPOSABLE_LINK_FARM heuristic strongly suggest a phishing campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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://krisoc.ru/uplcv?utm_term=mappa+bordeaux+pdf PDF link annotation
- https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160795a90e20c7---25254986042.pdfIn PDF document text
- http://technestudio.eu/userfiles/files/23409163732.pdfIn PDF document text
- https://interesttour.com/wp-content/plugins/super-forms/uploads/php/files/cb224f61abdf496e68d4c9e709750f3d/tikuvoximino.pdfIn PDF document text
- https://aquamedicasatumare.ro/ckfinder/userfiles/files/25200951749.pdfIn PDF document text
- http://agrocare.hu/ckfinder/userfiles/files/zuzanixorinoxobibe.pdfIn PDF document text
- http://botosani.ro/img/uploads/file/26584926552.pdfIn PDF document text
- https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/49f35e87cecd6b8d8cad60279e5f5c2a/pufusijaju.pdfIn PDF document text
- https://aadhaarretail.com/administrator/imagetemp/file/79918754870.pdfIn PDF document text
- https://wickedcheesy.com/images/file/moxawexififidurerewoj.pdfIn PDF document text
- https://dotcomtravelegypt.com/userfiles/files/pabebukesuti.pdfIn PDF document text
- https://novahealthclinic.ca/userfiles/file/nivofapitotaxabunoxata.pdfIn PDF document text
- http://shmountaineering.co.uk/wp-content/plugins/super-forms/uploads/php/files/97kt4lmakmaitaprumrhu03850/32611016885.pdfIn PDF document text
- http://maimungkorn.com/UserFiles/file/23268832105.pdfIn PDF document text
- http://bochosushi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a459606fb5---92036831476.pdfIn PDF document text
- https://santehsevast.ru/userfiles/files/xanaperetaja.pdfIn PDF document text
- http://domingo.hu/ckfinder/userfiles/files/14675492550.pdfIn PDF document text
- http://rent2day.ca/ci2/userfiles/files/dilesumufafukokumo.pdfIn PDF document text
- https://diversified-nj.com/wp-content/plugins/super-forms/uploads/php/files/9b01e1c6f552292e41d4dfacccd9e5e3/61045549238.pdfIn PDF document text
- http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/hb9hqv1shajbd1g39lb36tj5e5/fugosu.pdfIn PDF document text
- https://www.icslights.com/wp-content/plugins/super-forms/uploads/php/files/a383cacf2b1079f9b993fd50e6e29dfd/migovijim.pdfIn PDF document text
- https://magazinul-de-instalatii-sanitare.ro/app/webroot/files/userfiles/files/xufarur.pdfIn PDF document text
- http://qhzs88.com/admin/fckeditor_upfiles/file/2021082600352480554.pdfIn PDF document text
- https://www.nestroots.com/wp-content/plugins/super-forms/uploads/php/files/p91r4e4k2mdqnqa02gfmaeffa3/21100823337.pdfIn PDF document text
- http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e3ef54158db---20403403968.pdfIn PDF document text
- https://lordoptika.hu/files/files/bokoribojotibezoduwimeki.pdfIn PDF document text
- https://sharpspringwww.kinsta.cloud/wp-content/plugins/super-forms/uploads/php/files/fedd5578b672dda7daa57eba4fe0820f/648604888.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://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_off0000dd54.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD54 | 10316 bytes |
SHA-256: f22bc65d9064e82387fdccf2f7e7bb8ec64524387ce4542aaa4cb362017cee15 |
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font_01_sfnt_off0000f479.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF479 | 18616 bytes |
SHA-256: e00faf4fc1030d35d5a3f784089a2469101cd503873030960ec1bcda98ecda30 |
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font_02_sfnt_off00012597.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12597 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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