MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ClamAV as Pdf.Phishing.Trojan. Heuristic analysis indicates it functions as a link farm, directing users to multiple compromised WordPress upload storage locations and disposable hosting sites. The embedded URLs, such as 'https://krisoc.ru/uplcv?utm_term=politics+in+america+textbook+pdf', are likely used to distribute malicious content or facilitate phishing attempts.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 6
-
ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
-
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.
-
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.
-
External URI info PDF_URIPDF contains an external URL action
-
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.
-
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=politics+in+america+textbook+pdf PDF link annotation
- https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/160b36159abd1a---diduwojazabuxogowepebix.pdfIn PDF document text
- https://baoholaodong24.com/userfiles/file/20719577519.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f2257d4f5a2---lekimorep.pdfIn PDF document text
- http://tunglamgarden.com/images/fck/file/9615711056.pdfIn PDF document text
- https://zlatartopalovic.rs//files/672966325.pdfIn PDF document text
- https://apexforestservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091e26357a85---perigaluzisomugo.pdfIn PDF document text
- https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/b1b53ce38547f17db44792ac8678860c/43864508396.pdfIn PDF document text
- https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/rkihctjk0lp7msgk7fbn398mc1/82102526186.pdfIn PDF document text
- https://stl-log.com/htdocs/cljr/data/files/34200407129.pdfIn PDF document text
- http://ownlines.com/upfiles/file/gexuviziselepe.pdfIn PDF document text
- https://actor-conseil.com/files/file/55162857553.pdfIn PDF document text
- https://meganimal.pt/site/upload/file/26716183455.pdfIn PDF document text
- http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16087f957dd0f8---45920660333.pdfIn PDF document text
- https://bdcomunicazione.it/file/28208483290.pdfIn PDF document text
- http://paroissedementon.fr/upload/files/wukapawinijazesuritewe.pdfIn PDF document text
- http://dynamic1984.com/user_file/file/vebekuzifupumujode.pdfIn PDF document text
- https://floridagreatescape.com/media/file/44890048765.pdfIn PDF document text
- https://www.opsclown.it/ckfinder/userfiles/files/19416966653.pdfIn PDF document text
- http://gazosilikatnn.ru/uploads/files/devidajonekubos.pdfIn PDF document text
- https://mingyi-lock.com/data/file/userfiles/files/wekanukojufajalimeg.pdfIn PDF document text
- http://www.cerel.eu/images/wyswig_images/file/41025098781.pdfIn PDF document text
- http://jatyn.cn/upfiles/202107/file/1625353509.pdfIn PDF document text
- http://shopsuathientu.com/uploads/userfiles/file/xupudejo.pdfIn PDF document text
- http://thegroverestaurantnj.com/userfiles/files/61270589333.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_off0000ba71.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBA71 | 16620 bytes |
SHA-256: 2559db6479119e8568b118b37591972e5ef020feca760160b25e627fc1672c25 |
|||
font_01_sfnt_off0000e508.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE508 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
|||
font_02_sfnt_off0000fd1f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD1F | 11116 bytes |
SHA-256: f741b5af8ebf3beb085f759ee0d75b1ba8b0cb2e9df2d23b3383dd1e0f70272f |
|||
Open this report in the interactive analyzer, or submit your own file for analysis.