MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ML classifiers and ClamAV, indicating it is likely a phishing or trojan delivery mechanism. It contains numerous links to external PDFs hosted on compromised CMS upload directories and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of a 'download' button lure further supports the phishing pretext.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1992a03dc1---varukakijemewi.pdf
- https://xn----9sbccjdbca7cyaieg1a3j.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/acfb435117c63907f31ba2ea7a44d3f5/wulirobotifasaxuxu.pdf
- http://gardatrans.com/content/Files/kutuwojurimasigasumipukud.pdf
- http://e-photo.lv/ckfinder/userfiles/files/pekaxavosuxaz.pdf
- https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/3a8b9b76ff3a1a1202eeef78c4d0afc3/75605075677.pdf
- https://planet-for-events.de/userfiles/file/mameme.pdf
- http://medrea.ru/upload/files/18954789441.pdf
- http://crm333.com/documentos/file/javawexu.pdf
- http://wawabed.pl/uploads/userfiles/file/20809182192.pdf
- https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/14a045ce7ff479e175c28c7755bf2a34/21404628822.pdf
- https://www.traveltimevipp.com/wp-content/plugins/super-forms/uploads/php/files/d119fcf5d681633ec71a0e58c4e92823/85470221862.pdf
- http://fautographie.org/images/userfiles/files/bupuzuxipejivawavulo.pdf
- https://weeb.nu/userfiles/file/75776370636.pdf
- http://haiphongcontest.com/images/files/96367291432.pdf
- http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/161083ed56fbf0---44269654723.pdf
- http://bursaceyizgelinlik.com/images_upload/files/dubolidowufola.pdf
- http://gabinetortodontyczny.eu/userfiles/file/gizuravikumivamelame.pdf
- http://c2r-auto.com/uploadfiles/file/2021071304532373499.pdf
- http://jrpst.pl/userfiles/file/watoxixosetukezurem.pdf
- https://tuvanthietke13-5.com/webroot/img/files/xovelodapi.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=sketchup+2015+free+download+with+crack+64+bit
- 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_off0000b034.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB034 | 16792 bytes |
font_01_sfnt_off0000c846.bin79d46b2182a81c8ab9e0279d2838f98210ef5b50f8a639c3f82098f785632b6f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC846 | 15056 bytes |
font_02_sfnt_off0000eeee.binb82dd899fd85f005ea1843225a50a1cf8567ee77bb159579eecc7e3d2b34f36f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEEE | 11716 bytes |
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