MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains numerous embedded URLs, many of which point to compromised CMS upload directories or are part of a link farm hosted on disposable domains. The primary attack pattern involves luring users to click on these links, potentially leading to further compromise.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://cincia.ro/ckfinder/userfiles/files/nunamopemabokakulejunijog.pdf
- http://www.oe.com.tw/ezadmin/ckfinder/userfiles/files/22280068060.pdf
- http://eternoohydro.com/d/files/72059658555.pdf
- http://stefanourso.com/public/userfiles/file/gafejawaxedap.pdf
- https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bf84cb0644---81551939520.pdf
- http://achilleferolla.it/userfiles/files/54900522469.pdf
- http://www.tm-africa.com/beta/public/uploads/cms_filescms_files/vidukesukodisunop.pdf
- http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613eaca5e6105---76357230510.pdf
- https://phoenixknights.co.uk/wp-content/plugins/super-forms/uploads/php/files/7ed5eddd11e9d3592371f57a39d71ed9/87988237525.pdf
- http://arucax.am/user_images/file/tubazovulosiz.pdf
- https://sammycar.ch/sammy/sites/default/sammyfiles/newsletterfile/61383683512.pdf
- https://fitnessrev.net/wp-content/plugins/super-forms/uploads/php/files/0jel0frnsfh7m0sdi2s2eiehpq/tinekobuzuvunisuseke.pdf
- http://sunwisechem.com/Uploadfiles/files/witiwunodanitobuxumerije.pdf
- https://hobbes-group.com/upload/files/wuzaraxopiwetodorimeb.pdf
- http://klusjesindex.nl/images/uploads/rebobesajivufatopulutino.pdf
- http://studiomarcheluzzo.it/userfiles/files/taregofa.pdf
- https://incoyun.com/calisma2/files/uploads/64188314746.pdf
- https://chicagoportablexray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613711b8516f3---55748715061.pdf
- https://www.la-providence-ehpad.fr/ckfinder/userfiles/files/sepotepabovoso.pdf
- https://patriciogaete.com/upload/file/40713115666.pdf
- http://ahkjt.com/upfile/file/tezofonijivaxajida.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=bangla+torrenting+sites
- 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_off0000d842.bin8364d21c287cdf85cdbf534eb34498ace9fae59e2d918104094ead5615c76e3f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD842 | 16120 bytes |
font_01_sfnt_off00010182.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10182 | 16792 bytes |
font_02_sfnt_off00011999.bin33cff487bcdc5919ce47c6f1508e7216736159a337992b15c262434ea3cc14de |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11999 | 10336 bytes |
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