MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised WordPress upload directories or disposable hosting, suggesting a link farm designed to distribute malicious content. The presence of external URIs and link farm heuristics indicates an attempt to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://cructi.ru/uplcv?utm_term=fifa+16+app+download PDF link annotation
- http://happyorderfood.com/uploads/files/wikomebipubajejupekujoja.pdfIn PDF document text
- https://www.ogblfrontaliers.fr/wp-content/plugins/super-forms/uploads/php/files/hcvdrq7mtsl7j15jf6kohbdb94/43093945478.pdfIn PDF document text
- https://hediyelikhanem.com/calisma2/files/uploads/todotopevu.pdfIn PDF document text
- https://mobisteelegypt.net/userfiles/file/wijolovadafotakifaver.pdfIn PDF document text
- http://lagunaapartman.hu/images/user/file/72220708174.pdfIn PDF document text
- http://kotrackusa.com/fckedit_file/file///20210917_16_14_15.pdfIn PDF document text
- https://architektor.ru/uploads/file/suvolodam.pdfIn PDF document text
- https://nocnepal.org.np/ckfinder/userfiles/files/9148557515.pdfIn PDF document text
- http://sanruou.com/app/webroot/uploads/files/3551462173.pdfIn PDF document text
- http://zge-led.com/luodan/images/userfiles/file/xuvobufemetuw.pdfIn PDF document text
- http://entone.es/wp-content/plugins/super-forms/uploads/php/files/d8071dbc315c22cead57efcc45ce2756/salexazux.pdfIn PDF document text
- http://andrenickels.de/ckfinder/userfiles/files/nibomujoredorisivigutaw.pdfIn PDF document text
- https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147a13590c2a---44890406810.pdfIn PDF document text
- https://costarica4d.com/contents/files/zaritokukabuxelesojef.pdfIn PDF document text
- https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/161478c5060b0a---kupip.pdfIn PDF document text
- https://meganimal.pt/site/upload/file/84328039640.pdfIn PDF document text
- http://modulobase.com/userfiles/file/tulexapokijivut.pdfIn PDF document text
- http://jysfh.com/upload_fck/file/2021-9-14/20210914185025598642.pdfIn PDF document text
- https://prosaison.fr/userfiles/files/puxukovibenamuzibiname.pdfIn PDF document text
- http://ore-processing.ru/d/files/biginivekajozo.pdfIn PDF document text
- http://hyundaihungthinh.com/uploads/images/files/7197596724.pdfIn PDF document text
- https://www.canoe.ro/Extras/ckfinder/userfiles/files/wirimarozijefexemenomewa.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_off0000c8da.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC8DA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e0f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0F1 | 10276 bytes |
SHA-256: 84de84078beeb32fcddc6c6df66225614f0a99a0833a36ba9071c33234c8bf03 |
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font_02_sfnt_off0000f830.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF830 | 17236 bytes |
SHA-256: 33a31d760a52ccf34335e4bcba490203ef8573a356a7abb01e313520032ee462 |
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