MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF document was flagged as malicious by an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 6
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://crysiq.ru/uplcv?utm_term=how+to+get+badoo+premium+for+free+android PDF link annotation
- http://artpolinakuzina.ru/pict/file/nilujepisera.pdfIn PDF document text
- https://guanlai.tw/uploads//files/202108080635563072.pdfIn PDF document text
- https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/ce9283915c339b15b4f6a9bdeeb42cc3/tomasidil.pdfIn PDF document text
- http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609135541369d---8186058409.pdfIn PDF document text
- http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d5d4aea3ed---limukapifemola.pdfIn PDF document text
- http://sity-luxe.ru/userfiles/file/62351533410.pdfIn PDF document text
- https://www.scanworld.se/wp-content/plugins/formcraft/file-upload/server/content/files/160a8e56603682---jonoranoteb.pdfIn PDF document text
- https://lesura.net/userfiles/file/pewetemij.pdfIn PDF document text
- https://economiadecomunion.net/ckfinder/userfiles/files/xozunemakosanalagarog.pdfIn PDF document text
- http://villalapinetafavignana.it/userfiles/files/74220988623.pdfIn PDF document text
- http://veraschwemmle.de/fckdata/file/gipufujumujukediranok.pdfIn PDF document text
- http://phutungotodungha.com/img/files/53063980220.pdfIn PDF document text
- http://evpltravel.com/xv_image/file/nupakamikidubemer.pdfIn PDF document text
- http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c72ae5a37fa---42214001251.pdfIn PDF document text
- https://www.servicioscalibrados.com/wp-content/plugins/super-forms/uploads/php/files/731b2528e672af6b25cf34a6b52b405d/xixugaveguragivuxipi.pdfIn PDF document text
- http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160d32dd77fcd6---79371110477.pdfIn PDF document text
- https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/d4133eac6bbe49d8086ed43ac496e849/47783770649.pdfIn PDF document text
- http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161104b1804668---saxixotosobu.pdfIn PDF document text
- http://spalovnachemolak.sk/userfiles/file/52143998528.pdfIn PDF document text
- https://termocasasrl.com/file/zofikutabo.pdfIn PDF document text
- http://arablift.net/userfiles/file/mevunumu.pdfIn PDF document text
- http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc78a89940---derifuxirali.pdfIn PDF document text
- https://denizlihorozu.com/resimler/files/tilurino.pdfIn PDF document text
- http://nitexprofi.cz/userfiles/file/34207909771.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_off0000ddb6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDB6 | 10944 bytes |
SHA-256: 64fa45ab5015d2429b722553af89b6659cc0e1154ebc0b8442631f243646b7c7 |
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font_01_sfnt_off0000f6a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6A6 | 17088 bytes |
SHA-256: 73c4395fec1a2948da2399424fb484938bf89c024c6c8c3eb61e2b52802712a0 |
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font_02_sfnt_off000122bb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122BB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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