MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. The heuristic firings suggest it functions as a link farm on compromised WordPress sites, likely to host malicious content or redirect users. The 'SE_CALLBACK_LURE' heuristic specifically points to a callback phishing or tech-support scam pretext, aiming to trick users into contacting an attacker. No scripts were extracted, but the PDF structure and URL patterns are consistent with malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9957
Heuristics 7
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://www.fullmooneye.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607337bd2c3fd---tapetukudajususafujer.pdf
- http://www.adatechotomasyon.net/wp-content/plugins/formcraft/file-upload/server/content/files/160afca80f25c2---bufebenedu.pdf
- http://www.contectrade.hu/fckfiles/file/budero.pdf
- http://naturabliskociebie.pl/userfiles/file/62980868024.pdf
- http://thietbimaugiao.vn/Images_upload/files/56046259099.pdf
- http://albino-pitti.com/pub_img/file/51865201037.pdf
- http://yuanyoujie.vip/userfiles/file/gejujud.pdf
- http://asahiru-ban.com/files/files/xininokepukagalamaz.pdf
- https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160ac8bd2df128---dewixidedutalojopesu.pdf
- https://baodinhsolar.com/wp-content/plugins/super-forms/uploads/php/files/fjbinj3c8uh5ks91llg41jf26u/68801159731.pdf
- http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160e0c738a04bb---53371457815.pdf
- https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/5afbo7rh7sicdfvag92n74q88r/24921077568.pdf
- http://pileshoppen.dk/userfiles/file/92393496125.pdf
- https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/87bf3f1c0bd1b5bbcded6bfe4e2268e6/vimoxusivosok.pdf
- http://osullivanspressurewashing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073691d9d230---verofuzewadoxex.pdf
- https://valerart.com/ckfinder/userfiles/files/rogud.pdf
- http://pphu-joanna.pl/fckpliki/file/30689663446.pdf
- http://jingluo.net/uploadfiles/files/petilawebedejuzeki.pdf
- http://evopizza.lt/ckfinder/userfiles/files/daruvubitajoj.pdf
- http://computerdoki.hu/user/file/96896095893.pdf
- http://radissonhoteltraining.com/userfiles/file/28050752829.pdf
- https://99shayari.in/userfiles/files/zozizi.pdf
- http://xn----7sbbgprpk7biiq.xn--p1ai/admin/ckfinder/userfiles/files/liwinunatixawu.pdf
- http://surtek.biz/image/files/20150201_093200.pdf
- https://dhesient.com/media/68495643395.pdf
- https://rent-1.es/ckfinder/userfiles/files/67349831881.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=grilled+chicken+panini
- 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_off0000eee4.bin1a967c4222aa9a464871a361e57f011dcc51ac9322ba323135ce360716beac6d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEE4 | 19156 bytes |
font_01_sfnt_off00012004.bine3d15db7c840a04e63eafdc7c8a22c4154ed06c7da4bbeeb836e838d30cf953e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12004 | 10356 bytes |
font_02_sfnt_off0001373f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1373F | 16792 bytes |
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