MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. Heuristics identified it as a link farm, with many distinct hosts pointing to compromised CMS uploads. The embedded URLs, such as http://brothersaluminium.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/160ac98cf83727---57985214291.pdf, are likely intended to lead users to phishing pages or download further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://brothersaluminium.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/160ac98cf83727---57985214291.pdf
- http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609496950a5d3---gujagodirupaduxukusovesal.pdf
- http://bertrandetgastineaudesigners.fr/userfiles/file/63269225695.pdf
- http://ateliergermain.net/sites/default/files/file/ruzoruwumad.pdf
- http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/9i8e1qll464mbipplb1nl1mqb6/15536895472.pdf
- https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f187f924c2---bapewigugusabododufije.pdf
- https://functionalmovement.gr/wp-content/plugins/super-forms/uploads/php/files/a5057043e81595bfcf3830e9dfc94932/mijagowuzivotesoropovis.pdf
- https://jollytime.ru/wp-content/plugins/super-forms/uploads/php/files/6eaf6ad6b52fef5c022bba6719c5fab8/fokonuwawoziruzu.pdf
- http://brette-animation.com/userfiles/file/juxegopip.pdf
- http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/160d2026c4eafc---fisos.pdf
- https://cursosgratuitosonline.es/wp-content/plugins/super-forms/uploads/php/files/s7u2jnj9meiae8hciarlcaurk8/20108020696.pdf
- https://heykidsletscook.info/wp-content/plugins/super-forms/uploads/php/files/2a820e9735d41bac4536ef2a11b838c2/dakibavisama.pdf
- http://lookkorea.net/userfiles/file/jezoberuxima.pdf
- http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160a8803a2bd98---69615388075.pdf
- http://villaturri.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a5d83aeada2---molovebuloru.pdf
- https://okinawa4d.com/contents//files/6837860794.pdf
- http://www.goataxiservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608151e2c09b9---60445848511.pdf
- https://cor.org.ar/wp-content/plugins/super-forms/uploads/php/files/t28l0puld2n8200bfrgb58458h/66960058918.pdf
- https://utilitydiscount.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ebefe57334---83502030538.pdf
- http://usaoxin.com/userfiles/2021-5/file/mekamuxujizixejojusin.pdf
- http://www.saito-ken.jp/userdata/file/kizenoxo.pdf
- http://wintec-samu.hu/uploads/files/29167138106.pdf
- https://cspdental.com/wp-content/plugins/super-forms/uploads/php/files/5c4acb0986600b24dd2ddcae693328c3/51710474280.pdf
- http://begemot-rus.com/uploadfiles/file/2021050302505973499.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=call+of+duty+unlimited+cp+apk
- 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_off0000f856.binfb6a29ee87fcea2a140de210a106170d94a03ac845ceb84e2f87a07a85da6464 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF856 | 16860 bytes |
font_01_sfnt_off00012470.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12470 | 16792 bytes |
font_02_sfnt_off00013c87.bin6054785beed7a4cf2ec7960f95d92fd2f55254a948a747504b5cd7205a9cbe07 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13C87 | 10852 bytes |
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