MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is a PDF containing numerous embedded URLs, many of which are hosted on compromised websites or disposable domains, suggesting a phishing or malware distribution attempt. The presence of a 'download button' lure and links to compromised CMS uploads further supports this. ClamAV detection and ML classification confirm its malicious nature, likely as a phishing or trojan delivery mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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 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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://yotlist.com/uniformkontakt/userfiles/image/files/wawekiwuburowubutifuted.pdf
- http://aajude.pt/backoffice/ckfinder/userfiles/files/lakumekividofebu.pdf
- http://helderlive.nl/ckfinder/userfiles/files/pilurubat.pdf
- https://inchirierielicopter.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161343d9841540---68562692584.pdf
- http://ophirtonhotel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/161337a9980a3c---47841248159.pdf
- http://ketnoikienthuc.com/upload/files/vikawoxuvimagujobupun.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b18a8c224f---71977056953.pdf
- http://coumert.com/images/file/nipinikiluja.pdf
- http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/16136a126eb302---bufopewazutuzupomuj.pdf
- https://omprintandpack.com/userfiles/file/26581752306.pdf
- https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/161399bfdf2b41---11397300162.pdf
- http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/1612f7bcd119ab---78259960657.pdf
- https://stmarys-perthamboy.com/upload/File/jubofuxav.pdf
- http://yoron.net/up/files/xupunijutuwute.pdf
- http://termosystem.pl/userfiles/file/80263806520.pdf
- https://jotelek.hu/files/file/purebozinef.pdf
- http://giteduguedesboires.fr/userfiles/file/nazonegodomatemefa.pdf
- https://apoiotelecom.com/imagens/img_fckeditor/file/jixanubegodurevawovawal.pdf
- https://www.cosanuesa.com/componentes/editor/ckfinder/userfiles/files/xaxak.pdf
- https://2winit.com/Files/files/54707275479.pdf
- https://aymsoft.us/aym_image/files/4400642121.pdf
- http://chinalabware.ru/d/files/72861329369.pdf
- https://www.abandassociates.com/ckfinder/userfiles/files/jirotabenepubej.pdf
- http://jan-fotografie.nl/upload/files/mukeb.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=zapya+file+transfer+pc+to+mobile
- 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_off0000df0d.bincdd49bd6f3d108bcfc176dea29fcc1050f9df3c44c210f60b1576e43c49b852b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF0D | 10860 bytes |
font_01_sfnt_off0000f7f4.bine7624c07f789f96db0a6c2ef366fa0db1bcbaf5751bb36d313fc2ced82f551b3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7F4 | 18928 bytes |
font_02_sfnt_off000129f5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129F5 | 16792 bytes |
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