MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of external URIs pointing to various domains, many of which appear to be compromised WordPress sites or disposable hosting. This structure is indicative of a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly support the malicious nature of this PDF.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://philabc.ru/uplcv?utm_term=business+statistics+mean+median+mode+pdf PDF link annotation
- http://thewesternmist.com/userfiles/file/27069613563.pdfIn PDF document text
- https://frasertechno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f00b4e86676---panurozowevatowuxo.pdfIn PDF document text
- http://kesifveotesi.com/files/39986354447.pdfIn PDF document text
- https://tcufroghouses.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094dfe4d21d5---sidumuxigosigajarupi.pdfIn PDF document text
- http://www.juniorcollege.cl/ckfinder/userfiles/files/37615738513.pdfIn PDF document text
- http://karinameal.ru/imgdish/files/vitatimagalona.pdfIn PDF document text
- https://campermagazine.tv/public/file/51055384464.pdfIn PDF document text
- https://avantkart.com/wp-content/plugins/super-forms/uploads/php/files/nhgmshdrcgm5itser4rld6o2jo/80974562075.pdfIn PDF document text
- http://abaj.cz/UserFiles/File/murur.pdfIn PDF document text
- http://asclyziarskyklub.sk/userfiles/file/52467539890.pdfIn PDF document text
- http://newdimension.su/userfiles/file/31685932123.pdfIn PDF document text
- http://harc-ias.vn/Images_upload/files/67476251701.pdfIn PDF document text
- https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160c307b417cdf---maniparitijazaj.pdfIn PDF document text
- http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/1610aa58e36bf4---77687101187.pdfIn PDF document text
- https://qualitycountscleaning.com/wp-content/plugins/super-forms/uploads/php/files/3b231cf59af249529bd9f1002d00f0c7/nevimologapifevalago.pdfIn PDF document text
- https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/fgapt1cpa1lav3dtu4g5se96bv/75873114417.pdfIn PDF document text
- http://okvin.org/userfiles/file/xasokufi.pdfIn PDF document text
- http://asacnfservices.com/ckfinder/userfiles/files/26404532435.pdfIn PDF document text
- https://sieuviet.net/webroot/img/files/rirusuwidutafudo.pdfIn PDF document text
- http://gzmzwl.com/Uploadfiles/files/52066495672.pdfIn PDF document text
- https://webrekruit.com/php_codes/Scott/VieauAssociates/code/userfiles/file/regiburapututarisajek.pdfIn PDF document text
- http://yuanyoujie.vip/userfiles/file/4246479921.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_off0000e0c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0C0 | 10788 bytes |
SHA-256: 8848989ab68f10bec526c93b2e9bb7ea3b860d0baeb6fa5a0d19b621f322c43b |
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font_01_sfnt_off0000f9a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9A3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000111b5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111B5 | 17900 bytes |
SHA-256: 6550a6c8deada861664df467913e8a412eecd28be682fafd5aaf38baa350b2f3 |
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