MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised CMS uploads or disposable hosting, indicative of a link farm. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware delivery. The document body is unreadable, but the heuristics and URLs point to a malicious link farm designed to lure users to external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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 http://hondatayho.vn/images/ckeditor/files/tuzoxawumasezuwiworap.pdf
- https://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/a499cfa2af59fc3b9402c9562d0bb55c/kebezinabosefujodokak.pdf
- https://educhina.mn/editor/files/15791433763.pdf
- http://galettedesrois.hu/userfiles/file/fufikomari.pdf
- https://sleepthai.com/piceditor/file/vigidudanobatugadofikub.pdf
- https://angkagenap.com/contents/files/22498244995.pdf
- http://studioassociatoemc.com/userfiles/files/65682585214.pdf
- https://stephan-kratt.de/data/reiterhof/userfiles/file/pexidixeguruk.pdf
- http://studiochiodo.eu/userfiles/files/9850201618.pdf
- https://cytairtool.com/test/userfiles/file/20210911_e347e.pdf
- http://tms-technology.com/ckfinder/userfiles/files/wexojed.pdf
- https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f01d19dd3c---rejijufusefag.pdf
- http://mediacast.vn/ckeditor/upload/files/jemokabegavonivumabom.pdf
- http://www.nisbd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e68ec6dd86---mepuzexajubul.pdf
- http://cukrarnakolbaba.eu/obrazky/files/73672345585.pdf
- https://12tiga.com/contents/files/pigonafodawopeme.pdf
- https://graphicart.ro/fckfiles/file/26473336053.pdf
- https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/3210351e16090f546efdb955760330b7/70991022056.pdf
- http://ineke-ott.nl/keramiek-beelden-imagesfile/zalivowiroto.pdf
- http://nasfthr.com/userfiles/file/pagiril.pdf
- http://hoanggiaphatstone.com/upload/files/xijogov.pdf
- http://nuestratierrapremios.com/campannas/file/85870690459.pdf
- http://www.farmaciapenil.es/userfiles/files/fulapujugesumateranage.pdf
- http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/16146dcbf65014---41423143729.pdf
- http://badischer-kunstverein.de/ckfinder/userfiles/files/nesebanu.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=go+goa+gone+full+movie+hd+download
- 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_off0000b752.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB752 | 16792 bytes |
font_01_sfnt_off0000cf64.bin3652a896fab9421dddffd7e55f3e4b07594d90e5fffe2792271ad344e599a3df |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF64 | 16160 bytes |
font_02_sfnt_off0000f8c5.bin7b695d7ea888c32df559ec5ecfb00fcf205b6e5d7fdbe84b53631fcd53015bc8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8C5 | 10724 bytes |
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