MALICIOUS
216
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file exhibits characteristics of a phishing lure, embedding numerous links that redirect to potentially malicious content. The presence of links pointing to compromised CMS uploads and disposable hosting, combined with a high ML classifier score and ClamAV detection, strongly suggests malicious intent. While no scripts were directly extracted, the PDF structure itself facilitates the redirection, likely as part of a multi-stage attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
Heuristics 8
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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://smidgel.ru/uplcv?utm_term=power+of+now+summary+pdf
- https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/rfrg5ioc1gsrqasr335l0558o5/gasimutegamilifakixi.pdf
- https://dienlanhhonganh.com/images/pic/file/25666872489.pdf
- https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/8a2d7301c81f1a564fb09ebb4f8dd2d6/52488791777.pdf
- https://anyimaker.com/upload/users/files/53138525772.pdf
- http://expertcomptablecourreges.fr/michel_courreges/userfiles/file/kosutikokevilisugi.pdf
- http://veterinarioassociatopacinidallatorre.eu/userfiles/files/33058339626.pdf
- http://kinel-hunter.ru/upfiles/file/kidototinuditizovolov.pdf
- https://nutrishop.in/ci/userfiles/files/30214843084.pdf
- http://compsult.net/userfiles/file/bodowufidepesoxuvuta.pdf
- https://tdfstore.it/file/safoluzovuberegebuwuku.pdf
- https://vidaleve.net/ckfinder/userfiles/files/pajugovolifiz.pdf
- http://jan-fotografie.nl/upload/files/toxunojiwepigewuvalaluziz.pdf
- http://consol.hu/images/uploadedimages/file/5630356984.pdf
- http://hoanhaochemical.com/uploads/files/81037969386.pdf
- http://pro-group.ru/userfiles/file/11763377035.pdf
- http://fvv-hohenfelde.de/sites/default/files/files/xezobupix.pdf
- https://meganimal.pt/site/upload/file/xukunagoperi.pdf
- http://sanfrancescovet.com/userfiles/files/lowekoguluwodivubosada.pdf
- https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/576dc9c8672eccd1958f52305a836aa5/zofolepadok.pdf
- http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/161361f3ac7745---foruwibeborevivozatu.pdf
- https://optimumquestsolutions.com/ckfinder/userfiles/files/vaterelefe.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_off0000ecd0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECD0 | 16792 bytes |
font_01_sfnt_off000104e7.binfefc646ad2b3efd6e7c1c3c47840d5c1c18caf13892e4ecd37ace0717f8450da |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104E7 | 10724 bytes |
font_02_sfnt_off00011da1.bina62d2ca681518897ebe54ddcfbaedbbd680a34351e7d6557fe3ba7e04797622c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11DA1 | 19276 bytes |
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