MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with many embedded URLs pointing to compromised WordPress sites. These links likely serve as lures for phishing attacks or to distribute further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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://www.criteriainvest.com.br/wp-content/plugins/super-forms/uploads/php/files/t4d2e7bkqkhfeo8g6mt6295bre/81110695101.pdf
- http://hy-concrete.ru/d/files/10017071644.pdf
- http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160856d5439f16---37726523176.pdf
- http://zuche0551.com/upload/file/nuzul.pdf
- http://offerseir.com/basefile/offerseircom/files/gorutene.pdf
- https://hizlipin.com/calisma2/files/uploads/dimoleruzas.pdf
- http://jagatjyotischool.org/jagatjyotischool/userfiles/file/83666004923.pdf
- https://connect.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/7f9e09031cc8dc1f24352c386ac71344/vugetiporexa.pdf
- http://rosesrealtyhomes.com/userfiles/files/672349603.pdf
- http://philippinesroadshow.com/wp-content/plugins/super-forms/uploads/php/files/530d0243747d02fd11bf0cf8a5135fdf/31863326996.pdf
- http://4grd.com/cmsimages/file/lupavevolel.pdf
- http://keletunderground.hu/images/uploaded_pics/file/40216900702.pdf
- https://alshaabcoop.com/userfiles/file/ranuv.pdf
- https://hiperaktivite.info/userfiles/files/mepazusisovugukakevomisa.pdf
- https://theshairpodcast.com/wp-content/plugins/super-forms/uploads/php/files/ce304864f8770c7c35cd7d5df2744120/ruzitasukokafivinerosif.pdf
- http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609994c30e6a3---vakeworutidijatavim.pdf
- http://afghansolar.com/userfiles/file/togopuk.pdf
- https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16072241485404---kafaxabemegilo.pdf
- https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/58d148c55d297519f7c8c1a869b7b937/15092503183.pdf
- http://aardbeienfeesten.nl/uploadimages/files/mojukamolafabarez.pdf
- https://laser-arena.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1607fa6dd61be8---dadufov.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=pj+masks+racing+heroes+game+online
- 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_off0000e7de.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7DE | 16792 bytes |
font_01_sfnt_off0000fff5.bina712b3e488608f1aeed4452a4d88e93ff462394b425abdec0a6a2a114103bfc3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFF5 | 10800 bytes |
font_02_sfnt_off00011896.bin879a3860e19fa9925012e05bb337d17c2a7b74de24fbdc3648f36e9aca51c178 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11896 | 21916 bytes |
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