MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to various domains, some of which appear to be compromised or disposable hosting. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' strongly suggests the document's purpose is to distribute malicious links. No scripts were extracted, but the overall structure points to a phishing or redirection attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 6
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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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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://pistant.ru/uplcv?utm_term=what+does+841+mean+in+numerology
- http://www.greenfield-sustainability.com/images/files/56479012900.pdf
- https://ourlady-schools2.com/userfiles/files/7210825813.pdf
- http://adams-gold.ru/archive/image/file/sefoxinejopovunumomezof.pdf
- http://micronforgacsolo.hu/UserFiles/file/10000689288.pdf
- http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/nj66t5glvun1n3k8qk09bk0j6n/38327941774.pdf
- http://www.cerel.eu/images/wyswig_images/file/94221811715.pdf
- http://saxons99.com/clients/5/5f/5faa49e4155ddd0d4faf97b0d7aa3dde/File/35038831635.pdf
- https://maugli24.ru/wp-content/plugins/super-forms/uploads/php/files/9c7b2678d3652a6c159bf3d5e5103dfd/3112990696.pdf
- http://tragadsonisurat.com/ckfinder/userfiles/files/wiruferojarusazotipakewoz.pdf
- http://hgbs.de/userfiles/file/96481288524.pdf
- http://elencostruzioni.it/userfiles/files/63959337939.pdf
- http://phrabat.net/UserFiles/File/pebig.pdf
- http://blog.crowdly.com/wp-content/plugins/formcraft/file-upload/server/content/files/160949bf3a714f---80370950313.pdf
- https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/66e54c430683b8692a5219573a21aa93/kixufisidab.pdf
- http://www.heksan.com.pl/file/walikalulifenij.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d08c9aa286---bened.pdf
- https://doitsolutions.co/wp-content/plugins/super-forms/uploads/php/files/081057cca3a25747d544e25197cc051d/60888177500.pdf
- http://la-roofers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160870b541e56d---lamuzitoremujasowega.pdf
- http://ayurveda-shiatsu-nice.com/upload/files/16492380965.pdf
- https://textosolutionslinguistiques.ca/upload/editor/file/60869240891.pdf
- https://inverpalmas.site/aym_image/files/fepulumeloge.pdf
- http://suachuathietbi.com/upload/files/72544586844.pdf
- https://bohemiamaestro.com/webpagebuilder/ckfinder/userfiles/files/wemaxefedojidazi.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_off0000e2eb.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2EB | 16792 bytes |
font_01_sfnt_off0000fb02.bin877b9b171cd9c722f942681782504bb54232f835125a1c6b3a037c07812a0251 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB02 | 11240 bytes |
font_02_sfnt_off0001150b.bind02a105ff75e19c04f66e943b1402a413c760458da6da26ea1cc799754bbe9fa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1150B | 18136 bytes |
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