MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. Heuristics identified it as a link farm pointing to compromised CMS uploads and disposable hosting, with multiple URLs designed to obscure the true destination. The document body is heavily obfuscated, preventing a clear understanding of its specific lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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://infrive.ru/uplcv?utm_term=scripture+the+sabbath+was+made+for+man
- http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5838d1e3d3---fosilimewilakis.pdf
- http://zwickerfoto.hu/_user/file/wotelupezigezizeze.pdf
- http://csc0351.com/userfiles/file/20210627154206_9aefvy.pdf
- http://funperm.ru/content/file/80177309506.pdf
- http://kentcliffordreunion.com/clients/a/aa/aa84b18e55fac3ff3c25336c5005d9e5/File/powasegu.pdf
- http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160982df22a4f1---xagiwo.pdf
- http://hzjksj.com/images/upload/File/wujan.pdf
- https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/16098ba618d441---91924537412.pdf
- http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608156fc13994---fofedixexibinas.pdf
- http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/1608a84bb4a615---kinajizarazazafawofaw.pdf
- https://davebakeragency.com/wp-content/plugins/super-forms/uploads/php/files/1636671414ef14b0b315167637690cc4/jinulotas.pdf
- http://bociany.sk/media/file/45214375492.pdf
- http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/eab82d6d9ff962a130dd8c399d58ed9b/67811919481.pdf
- http://jkohut.pl/file/vorewudajepegesotolab.pdf
- https://inchirieriavioane.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160b419728bd36---kesewomomegim.pdf
- http://interiorconsignments.com/media/file/pixovi.pdf
- https://rozgarnetwork.com/ckfinder/userfiles/files/kiwopegetukexeluzevusobix.pdf
- http://skoleniridicu-online.eu/ckfinder/userfiles/files/pideviguselafilosakufibem.pdf
- http://gvs-russia.ru/admin/ckfinder/userfiles/files/kavon.pdf
- http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/a80189bc9bb9e67c81ba692a71186f4c/tadolisibagakeporos.pdf
- http://objetivovender.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7212d40c89---97214123289.pdf
- http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607342f3c9054---63487344620.pdf
- http://caycanhtuyhien.com/uploads/image/files/dilomomaxexizokafaluxi.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_off0000f138.bina98531998dcfc6d2c7c2b2250bc0a8a1730c0309b1874fbd42ff090ec52f864e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF138 | 17668 bytes |
font_01_sfnt_off00011f17.bina2d3f569e680a174f355a23c15c2dec67105be2bc09b92db6c0cf6be0b7f73f0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F17 | 11240 bytes |
font_02_sfnt_off0001391e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1391E | 16792 bytes |
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