MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged as malicious by a machine learning classifier and ClamAV. It contains a 'Clipboard command execution lure' heuristic, indicating it instructs the user to copy and paste content into a shell. This is a common technique to trick users into executing malicious commands, likely to download and run a second-stage payload. The document also contains numerous links to external PDFs hosted on various domains, some of which are identified as compromised CMS uploads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9909
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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Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LUREDocument tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
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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 https://www.heracles-hotel.eu/wp-content/plugins/super-forms/uploads/php/files/5c8j591dbp1trm7pbcsjkor5nb/fukenevatoruxet.pdf
- https://purevdavaa.mn/uploads/ckfinder/files/pubud.pdf
- http://kamerton.nl/clientfiles/bewuwenasi.pdf
- http://getvisa.ru/images/File/sujironegaxeroxuga.pdf
- https://t2sc.me/userfiles/xokewusol.pdf
- https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160758120a5e8b---35944183497.pdf
- https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/177f117282da5c3c2494032d2143b752/90240818383.pdf
- http://sip7.online/wp-content/plugins/super-forms/uploads/php/files/57ab30befe6bec691ab19cd53b61a19c/mubozawizinazizazimub.pdf
- http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e100bc62e2f---zexewef.pdf
- https://briljant-maleri.se/UserFiles/files/vores.pdf
- http://www.associatedomains.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a4e1b7781d---bikadakuxasasogapoladow.pdf
- http://westleyden72reunion.com/clients/4/46/469dc9162705cbff2d1fbe132f144f37/File/13535394445.pdf
- http://tryinvest.eu/userfiles/files/20051879481.pdf
- https://autoroman-service.ro/imagini_ws/26844201492.pdf
- https://aimara-bg.com/userfiles/file/vatejoxugogebade.pdf
- https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/8d2e2fded9701341fb8aea615443079a/43073008173.pdf
- http://connect-senior.ch/uploades/userfiles/file/83647254700.pdf
- http://hondaototanan.com/upload/files/dakatogeseduvegogepa.pdf
- https://thejasmineway.net/wp-content/plugins/super-forms/uploads/php/files/kn1dmskria56h463mnm7bn3su6/zetinifotolod.pdf
- https://patoman.ro/ckfinder/userfiles/files/mobasagitakifatiru.pdf
- https://pensionatiitalianiinportogallo.it/wp-content/plugins/super-forms/uploads/php/files/58a86407239eaa2140d6aa96a5ed49d0/jowirugamitifepibe.pdf
- https://asharfilalkulfi.com/ckfinder/userfiles/files/65842181573.pdf
- https://eslms.com/userfiles/file/muzasuzuwugibilisow.pdf
- https://www.kngroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc29a8a324e---ginasalogumum.pdf
- http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aafeef0f462---nijafudediboloja.pdf
- http://rosniyom.com/userfiles/files/30682558437.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=excuse+letter+for+being+absent+in+work+due+to+bad+weather
- 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_off000122fd.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122FD | 16792 bytes |
font_01_sfnt_off00013b0f.bina43696e164faac6dbd21495f0d4a084e72ca4846b6874b0ac8693e6e13508e8f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13B0F | 17988 bytes |
font_02_sfnt_off00016a71.binf2bb119c5cd47e7bbaec04a56c81fe8e7accc5fcffcc71ce9ba91f088b44defd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16A71 | 11260 bytes |
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