MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains a large number of embedded URLs, many of which point to compromised WordPress upload directories or disposable hosting, suggesting a link farm designed to manipulate search engine results or distribute malware. The presence of these links and the nature of the hosting indicate a likely attempt to lure users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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://zsmnowakowski.pl/userfiles/file/63447867564.pdf
- https://mbamantra.com/ci/userfiles/files/82000309129.pdf
- https://rijst.nu/userfiles/file/96833554956.pdf
- http://stlnsk.ru/uploads/file/rifovi.pdf
- https://tcufroghouses.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c49baad8aea---wuvadopolesiraga.pdf
- http://dotbamboo.com/file_media/file_image/file/jefamofobiz.pdf
- http://sugarfree-gelato.com/upload/file/sinoforeme.pdf
- https://acronimocostanzo.com/userfiles/file/lakijevatinoxojojafewifug.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160827bba93216---lakipugi.pdf
- http://svenstavik.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082e60a2e232---95766776654.pdf
- http://itkaufmann.com/images/fckimages/file/75285454817.pdf
- http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160837c8457633---54578031955.pdf
- http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094ae2e2f4f7---11429993146.pdf
- http://mobilephleb.com/clients/2/2d/2d2188d13063160162e6e2bbcdac547d/File/23322820287.pdf
- https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0544d6fd7c---merer.pdf
- http://thuduchouse.vn/pics/file/suroluronolukipolajegemi.pdf
- http://infinivideo.hu/sites/infinivideo/files/kifopor.pdf
- http://contelex.it/userfiles/files/gokibopuludegabo.pdf
- https://ltgtrends.com/wp-content/plugins/super-forms/uploads/php/files/c47b019f9c20d748b763b930159d986a/levexidapoduwitetukab.pdf
- http://dblbtech.com/userfiles/file/gibutomidijajupuvorov.pdf
- https://local-atlas.ru/userfiles/files/98865374906.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=ejercicios+present+perfect+y+past+simple+4+eso
- 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_off0000d6f9.binf9e87337ce82184f02dd4eb4f23cdb8002950f19e63590b8561320b947480341 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6F9 | 10944 bytes |
font_01_sfnt_off0000f05a.binaf9834d893886ae52c9f4071b9f59efc34844a57d1ca29ac59d192c89aa4d303 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF05A | 19428 bytes |
font_02_sfnt_off000120e3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120E3 | 16792 bytes |
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