MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with many embedded URLs pointing to compromised or disposable hosting. These links likely serve to redirect users to malicious content or phishing sites, aligning with a spearphishing attachment attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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 http://rhoptik.cz/klienti/devel/sneznerolby.cz/ckfinder/userfiles/files/97920156826.pdf
- http://kaitosushisb.com/uploads/files/rujupobumenote.pdf
- https://ymy-tea.tw/upload/files/sikedarexevor.pdf
- https://oykufestivali.com/ckfinder/userfiles/files/32002090198.pdf
- http://sartor.ru/upload/files/litopubokeniz.pdf
- http://weingut-suppan.at/files/bipozobetofadonuf.pdf
- https://mikepromedia.com/wp-content/plugins/super-forms/uploads/php/files/c343026fde08bdb9ce7b3a667ed79ba7/93572900289.pdf
- http://4bx.pl/public/file/dujizesun.pdf
- https://appchecar.com/ckfinder/userfiles/files/50317667226.pdf
- http://gatewayhotelbangkok.com/upfile_hotel/files/tominezes.pdf
- http://jindi2010.com/uploadfile/files/33355561671.pdf
- http://webbuilders.com/files/file/94975319516.pdf
- http://aumnat2car.com/ckfinder/core/connector/php/upload/files/jewuzalikamuxaj.pdf
- http://xn----otbbfbbknchz.xn--p1ai/sadm_files/jeperalexefux.pdf
- https://hotelite.in/userfiles/file/fivoxufozaja.pdf
- http://food-cloud.com/home/food-cloud/www/site/site/data/files/75851410416.pdf
- https://binhruamuinanobac.com/wp-content/plugins/super-forms/uploads/php/files/8uqsigadgqlqihsqgl8qd18a11/kenofomeruzizinidubak.pdf
- https://ibshospitals.com/userfiles/file/kupipokixazevugux.pdf
- http://mediacast.vn/ckeditor/upload/files/43105110556.pdf
- http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/ivsv46p2alrs7vf0t0bvhv16f8/87672002196.pdf
- http://insfilings.com/skyzone_classic/upload/files/tixas.pdf
- http://drironcat.com/images/file/nefizivit.pdf
- http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161322e0e6a874---97640101326.pdf
- http://iamsoldierfit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c890dc25c1---80801959476.pdf
- https://ctapigroup3.com/contents/files/27080286920.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=obteniendo+direccion+ip+android+no+conecta
- 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_off0000d9b0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9B0 | 16792 bytes |
font_01_sfnt_off0000f1c7.bin450e343371b6d065be16190017cb6ebea29acec3b4627fda698218357d4ca7fe |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1C7 | 10460 bytes |
font_02_sfnt_off0001096a.binc19c913b7703a0c528d6b0d7eca8b1e026b7536840188946e726a7dd12921426 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1096A | 18416 bytes |
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