MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm pointing to compromised WordPress sites, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded URLs are indicative of a malicious workflow designed to trick users into downloading further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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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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 https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/d1fba9503a460c7f2fdf77eadd8cf3b2/18659062380.pdf
- https://duragloss.pl/userfiles/file/dovijulixaboviwafimu.pdf
- http://crosswaysrecruitment.com/userfiles/file/tafenewimepoganafer.pdf
- https://tumujerrusa.com/userfiles/dalujapatokesifisaj.pdf
- http://pretaporter-pegah.com/userfiles/file/takalimititexuven.pdf
- http://stin-verdon.fr/assets/Image/files/4774849925.pdf
- http://maslag.eu/userfiles/file/70510450211.pdf
- http://randygordonlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/nekajewotelitilato.pdf
- https://atx-stroy.ru/wp-content/plugins/super-forms/uploads/php/files/f009956bf3a3b61b632c6340a7b01310/bokaf.pdf
- https://bahispesinde.com/gnc/veri/_files/ruzekowa.pdf
- http://www.parkwaytransplant.com/media_upload/upload/files/15683629360.pdf
- http://vuonlan.vn/data/upload/files/44620476857.pdf
- https://dildendilecevirievi.com/upload/ckfinder/files/6268755793.pdf
- http://www.otevrenysklep.cz/ckfinder/userfiles/files/pikigifesal.pdf
- http://toptoptraining.ru/img/upload/file/3819430251.pdf
- http://adhunikjewellers.com/ckfinder/userfiles/files/verasabotijapudidaruxevit.pdf
- https://llbyggodesign.se/UserFiles/files/88404847031.pdf
- http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/n3oph0qorfgeddp9q1i03tigp4/77875601747.pdf
- http://antichigelsi.it/userfiles/files/bijozosuxa.pdf
- https://www.blackandwhite-salon.com/wp-content/plugins/super-forms/uploads/php/files/tmp/3219918111.pdf
- https://pmsp-me.com/userfiles/files/tefapuvowozoxipodusa.pdf
- http://metamorfoza-krosno.pl/userfiles/file/85387748132.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=classic+contra+apk
- 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_off0000ca7b.bin0e163bf6c1665f556a41ff8c32979f1e322973c6ff984aea14a2ca07763b2920 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA7B | 10360 bytes |
font_01_sfnt_off0000e202.bin537271f6f9076dd62791500056ccae30dfaa799a583474bfcba454c382e8d666 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE202 | 19528 bytes |
font_02_sfnt_off000114dc.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x114DC | 16792 bytes |
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