MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as a phishing trojan and by an ML classifier as malicious. It contains a link farm with numerous URLs pointing to compromised WordPress sites and disposable hosting, suggesting an attempt to distribute malicious content or phish users. The presence of multiple external URIs and a link farm heuristic indicates a strong intent to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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=cfmeu+pay+rates PDF link annotation
- http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/160a022341366d---rulikimuvusasafuzil.pdfIn PDF document text
- http://xn--80adic7alej3d.xn--p1ai/userfiles/file/zavologexiti.pdfIn PDF document text
- https://ehblending.com/wp-content/plugins/super-forms/uploads/php/files/1f9f6a89ee06ee97f770fc133347ea8b/lagagaxujarosenode.pdfIn PDF document text
- http://amadpich.com/userfiles/file/1223830653.pdfIn PDF document text
- https://cbconsulting112.ca/userfiles/files/dewolagesaniwinabuleg.pdfIn PDF document text
- http://brickchamber.com/ckfinder/userfiles/files/62731596193.pdfIn PDF document text
- https://avflash.nl/upload/files/30037586977.pdfIn PDF document text
- https://fjordancv.info/wp-content/plugins/super-forms/uploads/php/files/84f6afc87544d942386d7e4c1e906029/rilufigekup.pdfIn PDF document text
- http://jonkmp.nl/img/cms/file/81194659177.pdfIn PDF document text
- https://aannemingsbedrijfbarthulsbosch.nl/userfiles/file/59134388469.pdfIn PDF document text
- http://coytex.net//ckfinder/userfiles/files/puronidukudefagalag.pdfIn PDF document text
- http://krzysztofmalec.pl/gfx/fck/file/84149801550.pdfIn PDF document text
- http://polyacer-ecp.com/userfiles/files/20210723_145811.pdfIn PDF document text
- https://abugfreemind.com/userfiles/file/37896874049.pdfIn PDF document text
- http://woodwork.pl/ubezpiecz/obrazy/file/liwolezonarum.pdfIn PDF document text
- https://www.blackandwhite-salon.com/wp-content/plugins/super-forms/uploads/php/files/e9e3ee1c2f199e315b5f52e3e9490d99/84203138622.pdfIn PDF document text
- http://jngf.cn/files/file/37589192160.pdfIn PDF document text
- http://dellalontra.it/userfiles/files/robenajitarivaxesupefoto.pdfIn PDF document text
- https://burgas-remonti.com/userfiles/file/1651811795.pdfIn PDF document text
- https://mwasafat.com/uploads/files/1243769163.pdfIn PDF document text
- http://patroha.hu/file/watodizavulad.pdfIn PDF document text
- https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e48a21a75e---gosur.pdfIn PDF document text
- https://ladychief.com/wp-content/plugins/super-forms/uploads/php/files/d9403e1684027c87dc587bb43e271380/15957987760.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ee97.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE97 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000106a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106A9 | 17476 bytes |
SHA-256: 0595a06c7407f000fe4c77565409138ef01d31904e83c6ab75d2df4336a62b34 |
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font_02_sfnt_off000134c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x134C6 | 10400 bytes |
SHA-256: a1500b60c1f80e951c40af67ed74de9445efc635b5efeab42a46e7962ca09f44 |
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