MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous external links, many pointing to potentially compromised WordPress sites or disposable hosting, indicating a link farm or phishing lure. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and heuristic firings like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' point towards a phishing or malware distribution campaign, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://cructi.ru/uplcv?utm_term=warhammer+40k+dark+heresy+2nd+edition+pdf PDF link annotation
- https://fallsplat.se/bildbank/file/16746892797.pdfIn PDF document text
- http://www.gpkoaee.ru/ckfinder/userfiles/files/xemakokunaxezagubej.pdfIn PDF document text
- http://prmakeup.com/Image/files/mijojidokixeros.pdfIn PDF document text
- http://stroykap.com/application/views/stroykap/userfiles/file/74336155870.pdfIn PDF document text
- https://fetogram.com/images/upload/files/70951788732.pdfIn PDF document text
- http://www.pantonerestauri.com/ckfinder/userfiles/files/38536714401.pdfIn PDF document text
- https://rainbowfurnitures.com/files/files/niwajod.pdfIn PDF document text
- http://kartelabasligi.com/images_upload/files/65435567725.pdfIn PDF document text
- http://bora.su/ckfinder/userfiles/files/56206670743.pdfIn PDF document text
- http://praconsulgroup.ru/pict/file/tidajutemonavugaripawap.pdfIn PDF document text
- https://fishuntpesca.it/file/16406978893.pdfIn PDF document text
- https://komunalno-vrgorac.hr/files/51868871922.pdfIn PDF document text
- http://idevicesplus.nl/app/webroot/files/userfiles/files/60345338323.pdfIn PDF document text
- http://2478.ru/admin/ckfinder/userfiles/files/49897667861.pdfIn PDF document text
- http://rungruangsteel.com/public/upload/userfiles/files/68687929262.pdfIn PDF document text
- http://dooroc.com/tk/upload/file/xaketujetudulevopoxereb.pdfIn PDF document text
- http://saringkarnwood.com/UserFiles/file/nixojiko.pdfIn PDF document text
- http://asesoriazabalburu.org/azaba/files/file/58845301511.pdfIn PDF document text
- https://www.frontierexim.com/wp-content/plugins/super-forms/uploads/php/files/2g7bicd48nf5fnq5s05lfbr0bg/68612719838.pdfIn PDF document text
- http://classtool.info/upload/files/15408000320.pdfIn PDF document text
- http://sadiqandsons.com/userfiles/files/41974128610.pdfIn PDF document text
- https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138f4f36f322---31726066842.pdfIn PDF document text
- http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/161435a3f77400---gumigopofovezabaz.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_off0000b9ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB9CA | 15268 bytes |
SHA-256: 0874ea35eea6c7de0eaabb46bb1383f24706a29724efb40cb73997b9d1b7d90f |
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font_01_sfnt_off0000e078.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE078 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f88f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF88F | 11236 bytes |
SHA-256: 4abe931aafe87681c319cc5daec715c59c1af50388a6ae908fdafdf72e66a4c7 |
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