MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous embedded URLs, many of which point to compromised WordPress sites and disposable hosting domains, indicating a link farm designed to redirect users to potentially malicious content. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent. No scripts were extracted, and the document body was unreadable, so the primary attack vector appears to be the exploitation of user trust through deceptive links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
Heuristics 5
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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://tabularasa.lv/sites/tabularasa/uploads/documents/files/90962668472.pdf
- http://bubblesoflove.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608bcfd8e5abd---ravokiga.pdf
- https://alrashed-alsaleh.com/userfiles/files/43667386513.pdf
- http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/isn028r4nliucn6ujeldb11i84/84708349632.pdf
- http://talleresjpg.es/img/file/gadulojedomu.pdf
- http://forter.vn/hinhanh/file/43465575520.pdf
- http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608738d609d50---sibenazulafujidogexevavar.pdf
- https://laurallo.com/ckfinder/userfiles/files/xijexawasenexevifadu.pdf
- http://lushexperiences.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076fe69753a9---titixad.pdf
- https://chiataiec.com/userfiles/Proj_Name//files/vesololibedila.pdf
- http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083e85e2e7e7---53375759519.pdf
- https://yourlightingbrand.com/wp-content/plugins/super-forms/uploads/php/files/08c474409426687f18a439dd88e18354/webazutotivivemu.pdf
- http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d5c6fcb8d0---polamu.pdf
- http://vom-ragnaroek.de/uploads/file/nalaritejejufu.pdf
- http://lateonsettay-sachs.org/userfiles/file/19600172149.pdf
- https://trellisdundee.com/wp-content/plugins/super-forms/uploads/php/files/fa95038f4437a55b69e597047c4a00c6/nuvupajilurexizujepe.pdf
- https://asset-books.com/userfiles/file/dumazojazuxuloluvazumo.pdf
- https://dptech.vn/uploads/files/fewidojog.pdf
- https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/40ab0ef580280d6e06b5aa24a9610f84/26893729696.pdf
- http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608944be7529b---63804769818.pdf
- http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16082234b6402d---41019249859.pdf
- http://ccforum.kr/uploads/file/1622284183.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=untitled+jamboard+online
- 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_off0000d41c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD41C | 16792 bytes |
font_01_sfnt_off0000ec33.binf5a823399c645eb13a02fe334d8ab944a394f4c844c8f1dc4232527def51e79a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC33 | 10516 bytes |
font_02_sfnt_off00010403.bin645c0771932715f5686f42814cab7352fa3c8eaf60d2ecd8a6fe06c27d4c8f16 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10403 | 17764 bytes |
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