MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of links pointing to other PDF files hosted on various domains, many of which appear to be disposable or compromised. This structure strongly suggests a link farm intended for SEO poisoning or to lure users to malicious content. The ML classifier and ClamAV detection further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://summithigh75.com/clients/867147/File/jiwekitofejotigutiwepew.pdf
- http://grawerlik.pl/userfiles/file/49348883975.pdf
- https://deconkhoemanh.com/wp-content/plugins/super-forms/uploads/php/files/amm0aocc3q3fgjcuefupc952f5/30839826261.pdf
- http://digivideos.net/ckfinder/userfiles/files/difujuwufuwilasiv.pdf
- https://lea-inc.com/wp-content/plugins/super-forms/uploads/php/files/726948fd6f92f52f25babbd611d2377c/pesojoribepepuzewavoza.pdf
- http://maihome.hu/admin1/file/89791805793.pdf
- http://brenna-ski.pl/userfiles/file/taxanumadikoxidufolebi.pdf
- http://vejwun.cz/images/25957739045.pdf
- http://ayurveda-shiatsu-nice.com/upload/files/82107037533.pdf
- http://wsospice.org/uploads/userfiles/file/file/zajufok.pdf
- http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f263fd1c2c---59132281979.pdf
- http://www.marcelasemper.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cd3830f3efc---68308910033.pdf
- https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/16075fadc6f9eb---tenozolabewagibusu.pdf
- http://crystaltrade.hu/data/file/bujutafuxewin.pdf
- https://wroclaw-effatha.pl/grafiki/file/xuxemosivep.pdf
- http://murito.fr/ckfinder/userfiles/files/8705546790.pdf
- http://dsagco.com/Upload/file/mekisijalogadorel.pdf
- https://bostaninsaat.com/image/files/32063820137.pdf
- http://whewfamily.com/clients/12004/File/sowota.pdf
- http://driver-jazda.pl/upload/file/pezanekulox.pdf
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bbf4de9369c---70333415904.pdf
- http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6038cca222---94130898677.pdf
- http://automozg.by/upload/editor/files/23854187776.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=lesiones+premalignas+del+cuello+uterino+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_off0000e9ee.bin95d8dccafebb6a8fa40eb357bd83e00db1fc18cd17f9e51a77e064e36f4eda0e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9EE | 18932 bytes |
font_01_sfnt_off00011a0f.binc65a48e811983af4d83878d7f9443b2b5d2985d96cf18586a99b8d87b9c1c5b8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A0F | 11020 bytes |
font_02_sfnt_off0001337b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1337B | 16792 bytes |
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