MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious Link
The PDF contains numerous external URIs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to redirect users. The presence of embedded JavaScript and a high ML classifier score further support its malicious nature. The ClamAV detection as 'Pdf.Phishing.Trojan' strongly suggests a phishing or trojan distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://grahampropertytax.com/wp-content/plugins/super-forms/uploads/php/files/72048c273b30deec168ff6145c55be21/76274558526.pdf
- http://bibliotekaludwin.pl/img/upload/files/54714527812.pdf
- http://gvs-russia.ru/admin/ckfinder/userfiles/files/51843565442.pdf
- https://daquin-ferriere.fr/userfiles/file/xonuwexapev.pdf
- http://akvari-um.ru/userfiles/file/4961019737.pdf
- https://wheelmartthailand.com/image/upload/File/61488190139.pdf
- http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/1613913714dfc3---56458623564.pdf
- http://fine-trading-knotwork.de/uploads/media/21502346142.pdf
- https://chambres-hotes-aube-bleue.fr/userfiles/file/99581578058.pdf
- http://joyearland.com/ckfinder/userfiles/files/karamo.pdf
- http://sunnyten.net/userData/board/file/xulozebewul.pdf
- https://buyafranchise.org/files/files/rukaluvelutog.pdf
- http://art-lan.ru/uploads/assets/file/lewemeninaxib.pdf
- https://lecormier-menuiserie.com/www/upload/files/retupotezazubamonufa.pdf
- http://jyotiacademicpress.org/uploads/file/kibaruxumebutufiwipe.pdf
- https://amatnieks.com/pictures/image/dofenadeta.pdf
- http://szamosiszerviz.hu/feltoltott/files/jiwepegenojuxevem.pdf
- https://ratoempat.com/contents/files/dutenude.pdf
- https://saftanton.dk/wp-content/plugins/formcraft/file-upload/server/content/files/161383937323d2---59768846000.pdf
- http://familiegravesen.dk/userfiles/file/nijogukesovuroj.pdf
- http://sireny.net/share/files/zegebabefinozi.pdf
- https://chptravel.ir/data/file/doxazixizagadere.pdf
- http://plusk-car.com/js/upload/files/98154619682.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=dua+of+health
- 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_off0000b553.bin1c3726ef1b7ff880f9b5ee9b7e32feeea7df21cd2c1eaf4027dc705950a2863c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB553 | 15572 bytes |
font_01_sfnt_off0000dc83.bin7bc62960f143317b733c44f5ef36a9747bd9335192488e7fb5034eacd4d3f8f7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC83 | 9948 bytes |
font_02_sfnt_off0000f2ae.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2AE | 16792 bytes |
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