MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous external URIs and is flagged as a link farm on disposable hosting, indicating a likely phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, with the document likely serving as a lure to exploit clients via the linked resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://pistant.ru/uplcv?utm_term=osssc+junior+clerk+question+paper+pdf
- http://quaint-house.com/xazujopakiguli.pdf
- http://musorcentrum.hu/files/article/file/begiwakafipudip.pdf
- https://teenvolunteer.org/wp-content/plugins/super-forms/uploads/php/files/d4cb9aed34a1c6078e1e618224585fde/16204734552.pdf
- http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/rk1lemtcc21g1nd2kjl0bh48dl/3403509024.pdf
- http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/160989ad233095---pifevozib.pdf
- http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/04d4145c8dda957e541a8c74e78436a4/47511990866.pdf
- https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/vdi62hc404t771ofn4b6pgqskg/77433619661.pdf
- http://montagnobozzone.it/userfiles/files/dujurozixovozufaliso.pdf
- https://hotelristorantenovecento.it/wp-content/plugins/super-forms/uploads/php/files/6a61299d4c764e91ce1ae0c408b23d89/devobudejeg.pdf
- https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070a5bacdff6---jikoge.pdf
- https://reparation-mobile.net/userfiles/file/somexanugexajedidunom.pdf
- http://uelzecht.lu/userfiles/files/81086635293.pdf
- https://www.lang-mayer.de/wp-content/plugins/formcraft/file-upload/server/content/files/160de70f8bbe00---zojosika.pdf
- http://architettorobertafasola.eu/userfiles/files/sopixuxamive.pdf
- http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e09f3559a90---rukilozoninum.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161166b618034b---figawajagetabazeka.pdf
- https://livingcircles.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160a994564416e---74965741538.pdf
- http://ibtaker.ps/userfiles/file/75916335817.pdf
- http://richardchong.com/userfiles/files/rasekifisebetalogekem.pdf
- http://dragonspond.com/uploads/files/goxujoli.pdf
- https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/ppkrfuqargltquiealsnftrd72/64223836097.pdf
- https://www.americansummercamps.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073c20a47cec---49616723079.pdf
- 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_off0000d367.bin863aff952f4fe2f2ecbfc1844b01a354bb3dfdbbdb0c9b3ab5a59ba13be4f198 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD367 | 11108 bytes |
font_01_sfnt_off0000ed39.bina8aa5eec959675d9c0f6e828d203cbd9be5de00d3338e4e31b44879a7ece5be2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED39 | 17672 bytes |
font_02_sfnt_off00011ac2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11AC2 | 16792 bytes |
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