MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many hosted on compromised WordPress installations or disposable domains, suggesting a phishing or malware distribution scheme. The presence of embedded URLs and the nature of the heuristics point towards an attempt to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://irlanc.ru/uplcv?utm_term=ultrasound+guided+core+biopsy+left+breast+cpt
- http://firmen-bekleidung.at/userfiles/file/49986956824.pdf
- http://sun-green.nl/ckfinder/userfiles/files/16052838166.pdf
- http://www.festivalmarrakech.info/wp-content/plugins/formcraft/file-upload/server/content/files/160888dcc6373d---tuborojefusavapevemelite.pdf
- http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16083d10b66a0e---lukim.pdf
- http://umiyawoodworks.com/fckdb/userfiles/file/xovonojasuvavus.pdf
- http://sjhtractor.com/d/files/jetefowajaxafadesewofego.pdf
- http://botanicgardenscafe.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c208c459e12---54926938583.pdf
- http://obasekiestates.com/UserFiles/file/didisovukedofulugo.pdf
- http://movitecnic.fr/ressource/site-image/files/21250815209.pdf
- http://exosportsante.fr/ckfinder/userfiles/files/gonatagabula.pdf
- https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/dni4vinjoqcdjpn6dd6ncd52m2/62081654299.pdf
- https://regenerativetherapyforpain.com/wp-content/plugins/super-forms/uploads/php/files/f1191016a2ee49634e68d9059663665d/76677494.pdf
- https://avenue102.com/uploads/file/7492622990.pdf
- http://bortran.com/upload/image/file/20210518053115.pdf
- https://admonks.ru/wp-content/plugins/super-forms/uploads/php/files/f07260bb56e968249ae5749d09edcad6/berofelo.pdf
- http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a382b9d2d73---45675284120.pdf
- http://ilyxrace.com/userfiles/files/mibifaterozamilajozuvivu.pdf
- https://www.enviedecrire.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d08764668a---zipozuje.pdf
- http://amwordpress.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b90165d4ed3---92850562742.pdf
- http://novehorizonty.sk/userfiles/file/meboferipujinewed.pdf
- http://citra.cl/userfiles/file/kaxafomoxix.pdf
- https://alnahamgroup.com/userfiles/file/14058347901.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_off0000e6d7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6D7 | 16792 bytes |
font_01_sfnt_off0000feee.bin24ece3c572519fe1e0621b18990a5c8b892faec84550e11c4cf4eba6e774fa18 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEEE | 11156 bytes |
font_02_sfnt_off000118ba.bin2f4a69f40ad6600b4144f13cda8d562722eeb6723fb1498b77df45d26482b27e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118BA | 17436 bytes |
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