MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF document flagged by ML classifiers and ClamAV as malicious. It contains numerous links, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The heuristic 'SE_INVOICE_LURE' indicates the document's content is likely a deceptive lure, such as a fake invoice, to encourage users to click these links. No scripts were extracted, but the overall structure and URL patterns are indicative of a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://wastran.ru/uplcv?utm_term=personnel+management+policy+and+procedures+manual
- http://gat-asset.com/CKEdit/upload/files/finividubovel.pdf
- https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160e40d8cca1d1---bupanekulifabog.pdf
- http://sun-eko.eu/files/file/bixufenemeku.pdf
- https://viboot.com/ckfinder/userfiles/files/xajexa.pdf
- https://connatlas.com/home/conn/public_html/ckfinder/userfiles/files/betuxewipemojaj.pdf
- http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c48cd04441---durop.pdf
- https://ms02bet.com/contents//files/62039208370.pdf
- http://teaandtiara.ca/clients/c/cf/cffd5a667a547ddf6f7ed7e454f715b7/File/50418875565.pdf
- http://cherishedmomentphotos.com/clients/8/84/84fe84b553acfcd191e166b7401b6f02/File/79328729529.pdf
- https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/b5dbf3fd6d7f8cc6718f1441c41637de/lezikomejogekarekobibebud.pdf
- https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f7b5ada1f3---werasojitep.pdf
- http://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f9173e4e9a---90272035025.pdf
- https://zivotzaokny.eu/res/file/dejigumufufudowix.pdf
- http://gyobel.it/public/file/21056880878.pdf
- https://laflammerouge.ch/userfiles/files/12828863601.pdf
- http://krevue.cz/UserFiles/File/numis.pdf
- https://beautyyaurient.com/editor_upload/file/retubipoledekixop.pdf
- http://automsystem.com/UploadFile/file/20210504160103450.pdf
- http://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160bcb8e2d1595---xinegipobopinok.pdf
- http://yavuzselimvakfi.org/resimler/site/files/bokumeg.pdf
- https://salvatoredivilio.it/userfiles/file/50330044984.pdf
- https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/2kta0rq49lqu0j4dnu8r02e7d3/68844236706.pdf
- https://tripleccompanies.com/wp-content/plugins/super-forms/uploads/php/files/5d0f207b6c616f5bf90262c94d83adb4/televan.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_off0000d419.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD419 | 16792 bytes |
font_01_sfnt_off0000ec30.bind31e6c26291e04294a81daee96ca6129514893fab23ab9fa3be7dac151e57cb8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC30 | 11072 bytes |
font_02_sfnt_off000105d4.binc8d06b65a9686879fbe81d69f6e84bc4a540c93905416ad443b01422ab663b87 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105D4 | 16756 bytes |
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