MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which are part of a link farm designed to redirect users to potentially malicious sites. Heuristics indicate these links are on disposable hosting and use UTM parameters, suggesting a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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://krisoc.ru/uplcv?utm_term=philips+fr984+manual
- http://homeopathyhongkong.org/files/98738600757.pdf
- http://ykzn8.com/upfiles/editor/files/zenulifap.pdf
- https://blagoustroystvo24.ru/ckfinder/userfiles/files/fogitupiwusikavekipiso.pdf
- https://theatresaucinema.fr/uploads/file/48498176798.pdf
- https://wonwon.taipei/photo/file/kokugodonikiwexomen.pdf
- http://everintelconsulting.com/upload/file/202109121245511224.pdf
- http://paillasse.hu/userfiles/file/79245082968.pdf
- https://deshpanday.com/ckfinder/userfiles/files/88534118271.pdf
- http://kag.fr/userfiles/file/bapitubazesibiwogu.pdf
- http://ks-system.co.uk/ckfinder/userfiles/files/45330732165.pdf
- https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613e1753da1e5---64091036018.pdf
- http://cosmikkino.ru/sadm_files/13795165458.pdf
- http://eakqshop.com/ckfinder/images_store/files/zituwupipakebokizuz.pdf
- http://tongshengchem.com/ckfinder/userfiles/files/bagogulu.pdf
- http://hflbdq.com/uploads/file/290922039423.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16152c3a5c5756---86759125447.pdf
- http://coming-c.com/userfiles/file/letol.pdf
- http://lutechmed.com/Images_upload/files/70699574414.pdf
- http://airserbia2009.vs.rs/multimedia/file/jeletofanesowerafonopot.pdf
- https://www.helpagesl.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613453c41ef94---77951595225.pdf
- https://generalaudit.pl/eurostyl/photos/file/92911897441.pdf
- https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/1615745485231b---zefoveb.pdf
- https://hostsolutions.ro/app/webroot/files/userfiles/files/vizotonuzudibobe.pdf
- https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614e30febc57e---jadarex.pdf
- http://roberthalasz.eu/uploads/file/linojugeravolujanipip.pdf
- https://xenonsvjetla.com/files/83436608829.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_off0000dfd6.bin0715d6d2feda513baf4302fe75b675487feb4cab32b956de4fbe537565059eb2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFD6 | 19580 bytes |
font_01_sfnt_off00011329.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11329 | 16792 bytes |
font_02_sfnt_off00012b40.bin85c8ccd869a28d9742d26d4c4d6137980de5663c356f0eaf217f7a65e23336d8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B40 | 10828 bytes |
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