MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a large number of links, many of which point to compromised WordPress sites and disposable hosting, indicating a link farm designed for malicious redirection. ClamAV detection and ML classification confirm its malicious nature, likely serving as a lure for phishing or malware delivery. No scripts were extracted, but the structure strongly suggests exploitation for client execution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9989
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://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e044c187717---94415500354.pdf
- https://businesslife.com/content/file/54173471357.pdf
- https://webmakler.org/userfiles/file/gogewurolu.pdf
- https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/r6pm2jhiiihfirkmhivs4kuqtl/nefadurikavukibojoxawu.pdf
- https://rosemonttherapy.health/wp-content/plugins/super-forms/uploads/php/files/cq1rv038nkuvvcihl1pmc9va9v/37486403049.pdf
- http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac0cd512b3f---pufosomuxelipoju.pdf
- http://aceonlinementors.com/userfiles/file/pogofisipototivegodamenuz.pdf
- http://anhuifan.com/upload_fck/file/2021-5-12/20210512154858659053.pdf
- https://action-roofing.com/wp-content/plugins/super-forms/uploads/php/files/b2a057348c24c0024e39ddcda9adf071/gonotebesira.pdf
- http://abovomedia.hu/_user/file/rikupixetinuxodugev.pdf
- https://fallsplat.se/file/85982192700.pdf
- https://movesforfree.com/wp-content/plugins/super-forms/uploads/php/files/a22kbv563qvlrh0tbptcifkp71/vokoza.pdf
- https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608dded34a7c9---33015497022.pdf
- http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e01acb555a---38311077528.pdf
- https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160f1bbe02db2f---37403852062.pdf
- https://implantsdentairesdesmoulins.com/upload/editor/file/83201521749.pdf
- https://am-system.eu/ckfinder/userfiles/files/37487214523.pdf
- https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/508nqka4a81k6cotk54bgg5737/suxaxinenezaji.pdf
- https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609dc48375d54---67567185790.pdf
- https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/160abaa50d5ea8---86227146002.pdf
- https://www.ikedatosou.com/wp-content/plugins/formcraft/file-upload/server/content/files/160eca673eab8d---mirix.pdf
- http://aldara-latinoamerica.com/userfiles/file/84987483919.pdf
- http://dynamic1984.com/user_file/file/rikosepudevumubinav.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=reproductive+health+is+the
- 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_off00010dc1.bin60948d4aaebd177b7fd183fef9979aa925ee7cf201019e76943f88e17b5dae8b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DC1 | 17880 bytes |
font_01_sfnt_off00013c6f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13C6F | 16792 bytes |
font_02_sfnt_off00015486.bin2518e8cb78afa76b4fdb914ea79ad435278ce1cfca9947cf003d2b7670ff2ee9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15486 | 10716 bytes |
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