MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was identified as malicious by a machine learning classifier and ClamAV, indicating a phishing or trojan payload. It functions as a link farm, directing users to numerous external URLs, some of which are hosted on compromised CMS upload directories. The primary attack pattern involves luring users to potentially malicious websites through a collection of embedded links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://mai-colle.jp/userfiles/file/83142872369.pdf
- http://csc0898.com/userfiles/file/20210627013228_iis7go.pdf
- http://savoie-outils-coupants.com/ckfinder/userfiles/files/zukomogagumoxivuridedone.pdf
- http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d61242aa27f---27048373655.pdf
- https://cavalier-hundezucht.ch/userfiles/file/wozagegivakuwiwidit.pdf
- https://topclassgardening.nl/images/file/nopefawug.pdf
- https://www.ltgpartners.com/wp-content/plugins/super-forms/uploads/php/files/a9ea473f528742bfba51d996e0b62b27/27936567119.pdf
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/4d004a284e9c69836f7dd7b029dff37e/64486923368.pdf
- https://www.tai.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160722602528c4---nokawowiludinenawo.pdf
- https://ecomassage.pt/wp-content/plugins/super-forms/uploads/php/files/qhlbl6748i5cnqo48ci03nipan/rerorejode.pdf
- http://stalmost.pl/userfiles/file/78497283238.pdf
- http://bitite.lv/media/txt/122/file/42943408374.pdf
- http://synergyproperty.com/images/files/zepadenaraxazonopomeba.pdf
- http://cleannshieldflorida.com/wp-content/plugins/super-forms/uploads/php/files/15acb34c86c850eaa3fa20cc09c747c5/fetele.pdf
- https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609263223ab0f---89881003922.pdf
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16091a9faeafda---mexozinusabe.pdf
- https://amrapalispot.com/userfiles/file/fexilotefaxofosibe.pdf
- https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160b944d649fc5---jasejifazebalivitamatoka.pdf
- http://www.ujepites.hu/userfiles/files/35658779492.pdf
- https://www.expoagrogto.com/wp-content/plugins/super-forms/uploads/php/files/tut3k1vbupeuu3ivs30ulkcl54/22566789197.pdf
- http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fc6b281529---47498279440.pdf
- https://carcable-bg.com/uploads/pictures/files/goleb.pdf
- https://mszukam.pl/dat//file/46641933606.pdf
- http://training-solutions.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607139105febe---32651576802.pdf
- https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/2181decc2c58680eda173521a2005705/44451332125.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=some+any+few+little+much+many
- 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_off0000e92b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE92B | 16792 bytes |
font_01_sfnt_off00010142.bin66342d5238bd7262e19964633eabe06566c320e6c5b7121a2f9bffbc37b80781 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10142 | 10708 bytes |
font_02_sfnt_off000119b0.bine7e261e04cdee80248e6396f27410ec77946e120680a651cc71f9c66701f09e6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119B0 | 20356 bytes |
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