MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs pointing to compromised websites, suggesting a phishing or malware distribution scheme. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this by indicating the PDF acts as a link farm on disposable hosting.
Machine Learning
- Nyx PDF Classifier malicious score 0.9936
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 https://queure.ru/uplcv?utm_term=system+of+linear+equations+matrix
- https://www.rogierstoel.nl/wp-content/plugins/super-forms/uploads/php/files/qtcbsbgbkudsa94tdtbs8umrek/37595474665.pdf
- http://ascensionchina.com/userfiles/file/69076614841.pdf
- http://cbelmira.com/wp-content/plugins/super-forms/uploads/php/files/bgih62125hktp3154agl3h0vf6/ruwep.pdf
- https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/45e18ff45ba03dabc95b98f1c443142a/22152392719.pdf
- https://nowbali.co.id/wp-content/plugins/formcraft/file-upload/server/content/files/16079e756450d9---jabikibexusiwe.pdf
- http://2ds-creations.fr/userfiles/file/60348648617.pdf
- http://digitalpolicycouncil.com/imagenes/file/lopafikifonozinivusogexap.pdf
- http://galgalesh.com/userfiles/file/44760094298.pdf
- https://chptravel.ir/data/file/54727974589.pdf
- https://cwlighting.com/wp-content/plugins/super-forms/uploads/php/files/997bd1a753ccfa0459ea2eed1ff4eb3d/taxologorateguj.pdf
- https://urbanplace.me/wp-content/plugins/super-forms/uploads/php/files/c8634679bec657496fe1a93fe65e18a4/88223681682.pdf
- https://www.sesc.com.ua/wp-content/plugins/super-forms/uploads/php/files/mcs40i65scgk4160on3cerarm2/metovurajudotixowana.pdf
- http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/160ad538357d89---nibegutijin.pdf
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/3qku0qmk37qp0050gqnvsdpkr1/94165598082.pdf
- https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b84e0e9e66d---zarigo.pdf
- http://altelaw.com/uploads/image/file/wipoxaxabotusos.pdf
- http://ecovn.vn/uploads/news_file/66175297539.pdf
- http://divorce-difficile.fr/userfiles/file/77428710845.pdf
- http://iglozawiercie.pl/zdjecia/file/23828626168.pdf
- https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/559f52de2c0493cb3283dba10f34e10f/tojuxisafivutitum.pdf
- http://cepsagibyachtfuels.com/images/photos/19070973483.pdf
- http://yakutiaprime.ru/SITE/files/editor/file/11691941847.pdf
- http://meble-tk.pl/userfiles/file/88740185116.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_off000121bd.bin4f820e31a7c052bcaeda1356dd2ea8a613742741497f5f3e8ab9f7e02c79054e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121BD | 10912 bytes |
font_01_sfnt_off00013aff.bin3cccca9427e6482658bdf72bff60a7d681956cfe030ac10493725e45a7d1ba8d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13AFF | 17144 bytes |
font_02_sfnt_off0001680c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1680C | 16792 bytes |
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