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, presenting numerous URLs that likely lead to phishing pages or malware downloads. The presence of 'utm_term' parameters in some URLs suggests an attempt to track user engagement with the malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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=pspdfkit+android+example
- https://tttinox.com/upload/userfiles/files/21291015545.pdf
- https://bayardplaza.co.uk/wp-content/plugins/super-forms/uploads/php/files/qj76hapm8pg9klhalimcmp7gfh/nibutoneledisudul.pdf
- http://e-hane.com/files/lerepegonekegijavi.pdf
- https://srp-galabau-rostock.de/wp-content/plugins/super-forms/uploads/php/files/o7b0gmjqfo84cr8el0ab3tun9g/gaganedab.pdf
- https://mobspace.xyz/web/img/podborky/files/fisowagalezilupapegupid.pdf
- http://www.catalogodecineargentino.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099d5d59991e---bokije.pdf
- http://baheth24cars.com/ckfinder/userfiles/files/tofodefosavixoxin.pdf
- http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f3e82153fa---28826364669.pdf
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/161207cb7e01ef---jatotejisog.pdf
- https://www.myjamaicais.com/wp-content/plugins/super-forms/uploads/php/files/c417fc1c50b4e1f8c11ce0db88f6341c/lilixinoxuxarugop.pdf
- https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608a306142bf4---lumidizikifobef.pdf
- http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/1606f726051e69---18837024977.pdf
- http://brlairport.com/images/file/23351761944.pdf
- http://jagatjyotischool.org/jagatjyotischool/userfiles/file/bepakomusazuwux.pdf
- http://kovospm.cz/fotky/file/19842743265.pdf
- http://nw-line.ru/generic/uploaded/kurutizugom.pdf
- http://ibb-online.ru/f/file/31146284460.pdf
- https://apskarota.org/userfiles/file/94901388858.pdf
- http://vejwun.cz/images/vabeburukipake.pdf
- http://vinmexindia.com/uploads/45800185172.pdf
- http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607dd343500aa---losura.pdf
- http://assushop.com/userfiles/assushop.com/file/bemupuxoviluvezowezopowu.pdf
- https://mrmusicfoundation.org/wp-content/plugins/super-forms/uploads/php/files/9dnlbubipd1fu2evj0o2blutdr/3434819607.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_off0000b810.bin3f399a3d543d4203bc8ab1fdd52e28b8ef38b90dfbb0e807fe28af0fc99a6869 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB810 | 16220 bytes |
font_01_sfnt_off0000e1ad.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1AD | 16792 bytes |
font_02_sfnt_off0000f9c4.bin2a1ecbdd6c9f190bf268e83aeb21004f32c67ff03f64d70c6174daa0a796f20a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9C4 | 10856 bytes |
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