MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external URIs and links to compromised CMS uploads, suggesting it's part of a link farm designed to redirect users to potentially malicious sites. The PDF structure and embedded links are consistent with phishing or malware distribution campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9914
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://laborke.ru/uplcv?utm_term=programas+para+descargar+musica+en+un+android
- https://topclassgardening.nl/images/file/30593974784.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614232efb81df---57761211511.pdf
- http://ibshop.gr/uploads/_uploads/files/sagipegegolopumaseka.pdf
- http://elektromig.pl/userfiles/file/xetelawuma.pdf
- http://alltimescare.com/attachment/files/durifelidavanuretanur.pdf
- http://mamnonsaokhue.vn/app/webroot/files/ckfinder/files/jemubixolubamo.pdf
- https://ratosatu.com/contents/files/webewasotejefasegibanide.pdf
- http://haohanlegend.com/Uploadfiles/files/bapesunesiguxil.pdf
- http://market-oborudovanie.ru/upload/file/kapesegelepeme.pdf
- http://muszempilla.com/files/file/9571481992.pdf
- http://mega-gold.com/userfiles/files/72136243713.pdf
- http://qianxi.cn/filespath/files/20210910172212.pdf
- https://kysig.com/app/webroot/userfiles/files/nisijuzugajowif.pdf
- http://everestlodgelukla.com/userfiles/file/15816892927.pdf
- http://artemon.nl/userfiles/file/xivigujedowozo.pdf
- http://www.euro-fly.eu/userfiles/files/xifenevosose.pdf
- https://dimensioninteractive.com/WYSIWYGImage/file/25057868721.pdf
- http://kaupa.cz/userfiles/file/mijuginawijexozejo.pdf
- https://fmpride.com/wp-content/plugins/super-forms/uploads/php/files/c84f0b5f95fff27b62e26e2402cf8015/89123677881.pdf
- http://energywork.pl/userfiles/file/xutenep.pdf
- http://dentalweek.eu/userfiles/files/fasawuj.pdf
- https://skvely-kup.cz/files/file/44617409499.pdf
- https://www.domaine-de-la-ferme.fr/ckfinder/userfiles/files/jolizejafefiditoloxu.pdf
- https://niboparis.com/upload/fckeditor/file/1631475025_1.pdf
- https://kawanmto.info/contents/files/52249225044.pdf
- https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613f8aecb10e6---navebadopubojaruledasuvuf.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_off0000ba8e.binc54d84be53e206b923e1b9f6428c8db8f08b0b93c5187c1927f4a16326391d88 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBA8E | 17732 bytes |
font_01_sfnt_off0000e886.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE886 | 16792 bytes |
font_02_sfnt_off0001009d.bin3b8348a0bea51a2c50ab2058c336f788a08086f9f8a865fa1fed7ccea8b95a77 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1009D | 10816 bytes |
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