MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links pointing to compromised websites, identified by heuristics as a link farm on disposable hosting. ClamAV and an ML classifier flagged this file as malicious, specifically as a phishing trojan. The presence of these links suggests an attempt to redirect the user to malicious content, likely for credential harvesting or further malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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 http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613202cc811a3---69106899971.pdf
- http://ingmontagna.com/userfiles/files/77985004127.pdf
- http://fijiembajak.com/uploads/ck_uploads/files/bunerigaduxenav.pdf
- https://tectrongim.com/uploads/files/37069777601.pdf
- https://ikincielinmak.com/upload/ckfinder/files/furipulavupotuxaxuzux.pdf
- https://soccerauquebec.com/userfiles/file/besegigezamop.pdf
- http://eltprof.ru/userfiles/file/11821623414.pdf
- http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1612f61cd2c367---34616366725.pdf
- http://kehlux.lu/userfiles/files/33461373981.pdf
- https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140a87363425---32095061112.pdf
- http://denis-lefebvre-services.com/fichiers/file/pabonekawu.pdf
- https://www.sonorisation-auxerre.fr/ckfinder/userfiles/files/97320844592.pdf
- http://dotbamboo.com/file_media/file_image/file/71717690238.pdf
- http://xn--jt2b56wn0ap2a.com/upload/file/202109140948411291.pdf
- http://4rrecycle.com/files/file/76025367844.pdf
- http://pro-group.ru/userfiles/file/dufidawiluper.pdf
- http://fueandhair.com/userfiles/files/73367866223.pdf
- http://zzps.pl/userfiles/file/72466326061.pdf
- https://theipbuzz.com/images/file/gukezamilemujilodazin.pdf
- https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/161346a46a2768---jikexidetu.pdf
- http://baove247.org/upload/files/digalal.pdf
- https://dpt-mh.com/uploads/news/files/61010155368.pdf
- https://mmoxx.mn/userfiles/files/xufowa.pdf
- http://fruitvita.com/files/files/74771621192.pdf
- https://shieldtech.cz/ckfinder/userfiles/files/sagipavopemumasid.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=animation+in+recyclerview+android
- 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_off0000bcc5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBCC5 | 16792 bytes |
font_01_sfnt_off0000d4dc.bin06fa7c43f662b26608396454d5dec2f8e290ce1b7a7e348d905c6bfa423a537a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4DC | 10608 bytes |
font_02_sfnt_off0000ed22.bin9770e6e557a566106d5e46279f8cfe0c2839106372747ea255c6cc8106da3054 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED22 | 16376 bytes |
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