MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains numerous links to external websites, many of which are hosted on compromised CMS upload directories or appear to be part of a link farm designed to obscure the true destination. The presence of these links suggests an attempt to redirect users to malicious content or phishing pages.
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://zakarpattya-tour.com/upload/bizowikagebokagom.pdf
- https://presstone.hu/userfiles/file/2052480277.pdf
- http://aiswaryamatrimonials.com/fck_uploads/file/rozedixareku.pdf
- http://elfuklid.cz/foto/Image/file/99409264610.pdf
- http://jfk1969nola.com/clients/873000/File/zajezixi.pdf
- https://suksesunited.com/contents//files/gudijowarivevinafeduju.pdf
- http://szao-spb.ru/images/news/file/59857769392.pdf
- https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ca4f8c2818b---vabokolemofozuridoba.pdf
- http://stihoplet.by/upload/editor/files/baxokasirodevujebigiboro.pdf
- https://www.orthovision-lublin.pl/ckfinder/userfiles/files/15094844223.pdf
- http://ccsctda.com/ckfinder/userfiles/files/20210829_223439.pdf
- http://www.huntsvillepr.com/files/files/50794137631.pdf
- https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/63rhf88r1eat45s44mgfgcr0td/86077099531.pdf
- https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/2s2e7ljbtm73lle30ppue7o9kt/linez.pdf
- http://jfac.kr/ckfinder/userfiles/files/67149442683.pdf
- https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/9u6do38jgkpfl19beop8cncn91/14806782467.pdf
- https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/16106fd2d749dc---talubanirir.pdf
- https://personalloan2u.com/wp-content/plugins/super-forms/uploads/php/files/a614d31b9ccdca33c0559659501d26d7/63062194967.pdf
- http://penzion-u-zamku.cz/files/file/92628841749.pdf
- http://structurecreative.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0f9be315f1---316033668.pdf
- http://immobiliareborghi.com/userfiles/files/80924584101.pdf
- https://solidpractise.com/files/userfiles/file/98221574212.pdf
- https://www.finestkindcharter.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607104042ab7e---rimibedakuwirobotufid.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=angeles+city+accommodation
- 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_off0000e16f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE16F | 16792 bytes |
font_01_sfnt_off0000f986.bin44e44c61ef77541265be927c186efd1cae45416fb6d1b7e16dcdbcc712778100 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF986 | 10708 bytes |
font_02_sfnt_off000111f1.bin5741ed49ccc42cacd6a39a0306bf3a7cc42fe471fc44cafe5cb4f1975b274de5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111F1 | 17332 bytes |
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