MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains numerous external URIs and link farms pointing to compromised WordPress sites and disposable hosting, suggesting a phishing or malware distribution scheme. Although no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest it's designed to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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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://crewmak.ru/uplcv?utm_term=how+to+delete+instagram+messages+forever
- https://www.bouldersudbury.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608569994f854---tuzajetizakad.pdf
- http://gertiesbloomers.com/kousumi/nulook/upload/fckimages/file/56225362110.pdf
- https://capital-tic.com/upload/ckfinder_temp/files/20210529072419.pdf
- http://topimmigrationlawyer.org/ckfinder/userfiles/files/walesawadizo.pdf
- https://akemi.ro/hirek/file/zatejokukoremuviw.pdf
- http://theheavent.com/userfiles/files/90055948750.pdf
- http://asfalon.com/__files/file/puboxuxolusozun.pdf
- http://bioident.pl/photos_fck/file/zojowo.pdf
- http://www.marcelasemper.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bdb31fc8e70---pobivajobinovosaz.pdf
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/160a0b0efced67---ziseminasuvegos.pdf
- http://skonasystems.com/userfiles/file/jibaxavugojixip.pdf
- https://binhruamuinanobac.com/wp-content/plugins/super-forms/uploads/php/files/n66t9hqk9d6qh1ik3s3m5j3k2d/viteveditigetibim.pdf
- https://arihantgranites.in/wp-content/plugins/super-forms/uploads/php/files/7ei3amp9geg5470ko6j9ho5hq4/rufuziwonakikotikuzeboda.pdf
- https://amd-export.com/site/upload/file/70256505890.pdf
- https://stpeterscbs.ca/ckfinder/userfiles/files/30268872321.pdf
- https://economiadecomunion.net/ckfinder/userfiles/files/93591593432.pdf
- http://wooshin.kr/uploaded/file/40430136860a27d364dd4e.pdf
- http://mdbim.pl/ubezpiecz/obrazy/file/gavanuki.pdf
- http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160bf564071e51---ripev.pdf
- https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/2f0e1c1cea1fb45439f495f1e8932621/68931386676.pdf
- https://www.americansummercamps.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070173dd7039---32377854181.pdf
- http://zwickerfoto.hu/_user/file/29822872065.pdf
- https://themodernla.com/wp-content/plugins/super-forms/uploads/php/files/b2298c41a944387d385a43f471bebcb6/27684993163.pdf
- https://nothingbutsafetyglasses.com/userfiles/file/55314594473.pdf
- http://businessvaluationapp.com//fck_files/file/52277347239.pdf
- http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/160893d235bb55---2353454779.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_off0000e7cc.bina4ba686797c69c4730d57cfb6cbdb6dcc7202121adf46f880ed883f9e086f335 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7CC | 16380 bytes |
font_01_sfnt_off00011258.binb7ff49d33dfb46e8e9e1e150d96648874398e316a4b1b65dbc94de4a023185ed |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11258 | 10840 bytes |
font_02_sfnt_off00012b28.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B28 | 16792 bytes |
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