MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF was flagged by multiple heuristics as malicious, including a high-confidence ML classifier and ClamAV detection. It functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites. These links likely serve as a lure to redirect users to malicious or phishing content, consistent with a phishing attack vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9935
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://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/1606e64866a3fd---77071796036.pdf
- https://howardsteeves.com/wp-content/plugins/super-forms/uploads/php/files/3accd8938f4073f815456c0a5b275f59/48143981159.pdf
- http://www.mywil.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16082af88dcaf1---9254758616.pdf
- http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095ae5cee5f3---xozufepu.pdf
- http://metafelix.it/userfiles/files/37787230630.pdf
- http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a472329ca85---97624076178.pdf
- https://anmoul.com/userfiles/file/mawimez.pdf
- https://meganimal.pt/site/upload/file/97287810150.pdf
- http://morethancars.nl/uploads/edytor/file/85209230367.pdf
- https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607158b40c20e---dowuwuxojewido.pdf
- https://schmitz.cz/res/file/dekenoroxugerudawojo.pdf
- https://buka.ru/sadm_files/68710173090.pdf
- https://www.sudburyhighspeedinternet.ca/wp-content/plugins/super-forms/uploads/php/files/b3e23bbc0d54cbc1190eccd6f1b82ac4/merebefasariraginuweku.pdf
- http://av-jet.ru/userfiles/file/jezubogofevigebelojidiza.pdf
- http://ohsclassof73.com/clients/9/9a/9a21b0b253f7c4eafe662346d237c286/File/73483447445.pdf
- http://oreade-breche.fr/userfiles/file/730680165.pdf
- https://angkoronetour.com/userfiles/file/pusajoxelopunuwivu.pdf
- http://brette-animation.com/userfiles/file/pabirozokefakokoxid.pdf
- https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e6b2033fdd---11591161462.pdf
- http://akgikorea.com/file_upload/fck_upfile/file/vaparisebu.pdf
- http://fandimnarodaku.cz/upload/file/folefir.pdf
- http://kaplanpm.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a2f9e7a102---92274257196.pdf
- http://zawayakw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160757f3416739---74389559526.pdf
- http://granite1962.com/clients/869125/File/vetivaxoburusoxif.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=how+to+play+cold+war+zombies+alone
- 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_off000104c3.bin20cc6230cd660e15dc569dca00eed5b4f9d275c35ab2e3ee201054715fd540f0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104C3 | 11068 bytes |
font_01_sfnt_off00011e5f.bineb815fb75576a477190f53aac52159af7d6efc4d360822ea1d55f6d16eb3cf3a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E5F | 18308 bytes |
font_02_sfnt_off00014e4f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14E4F | 16792 bytes |
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