MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, exhibiting characteristics of a phishing or trojan distribution. It functions as a link farm, directing users to multiple external URLs, some hosted on compromised WordPress sites, increasing the likelihood of delivering a secondary payload or leading to phishing pages. No scripts were extracted, but the structure and URL patterns suggest a malicious intent to lure users to external resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://akonis.ch/userfiles/files/foror.pdf
- http://bjdfszwy.com/filespath/files/20210910093849.pdf
- https://siahotel.com/userfiles/files/zepomifibesibur.pdf
- http://shamayachts.com/upload/file/33025713474.pdf
- https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/85d0aedde74ba78f1d9ccc8c128ea13a/mebokozavanuzokoluwumugat.pdf
- http://cancercareresearch.com/userfiles/file/29594166031.pdf
- https://gancza-yacht.pl/userfiles/file/gimom.pdf
- http://mtecommerce.it/public/news/file/fefidi.pdf
- https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/057f3cb6cfc2ca92a8e7523c47567c0b/dademudugut.pdf
- https://www.accidentinjuryalbuquerque.com/wp-content/plugins/super-forms/uploads/php/files/vrpe3q1a29jrg36lj0ebcrtqb3/xitoni.pdf
- https://www.elementstraining.co.uk/wp-content/plugins/super-forms/uploads/php/files/p6obnj22ossu28p7o3qjooul3p/pederur.pdf
- http://badischer-kunstverein.de/ckfinder/userfiles/files/54061572758.pdf
- http://www.eurosecurimed.com/ckfinder/userfiles/files/kasukipurogim.pdf
- https://bestrecycledautoparts.net/images_i/file/93597449396.pdf
- https://acmfashion.vn/uploads/files/89474135890.pdf
- http://absolutelyneon.com/userfiles/file/23095513076.pdf
- https://infotechloyalty.com/bot/ckfinder/uf/files/85665313440.pdf
- https://raljob.com/userfiles/file/xifimapul.pdf
- http://bienchidan.org/uploads/files/65355876559.pdf
- https://adamant54.ru/userfiles/files/sulisutuvikunenaxun.pdf
- https://drticket.ir/basefile/drtiketcom/files/72885252087.pdf
- http://cambresisemploi.fr/ckfinder/userfiles/files/lukube.pdf
- http://interwork.sk/userfiles/file/26343278128.pdf
- https://protectname.xyz/whoisprivacy/userfiles/files/2936566289.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=rmc+call+recorder+app+open
- 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_off0000eb1d.bince1f6b2af85c9af80c8d84430dcd20d0029397f163c6091ffd53a8e86755342e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB1D | 10360 bytes |
font_01_sfnt_off0001026c.binccb67a476d88dfda2168f9a1a1e3758c493866be491139b9496049e5f16dd96d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1026C | 18012 bytes |
font_02_sfnt_off000131bf.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x131BF | 16792 bytes |
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