MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URI heuristics and the 'PDF_SEO_DISPOSABLE_LINK_FARM' rule further support this attack pattern. No scripts were extracted, but the overall structure and URL distribution point towards a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 6
-
ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
-
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=how+to+play+mpeg+2+video+in+android PDF link annotation
- https://lufty.cz/UserFiles/files/71198373169.pdfIn PDF document text
- http://wernitznigg.at/files/64627521678.pdfIn PDF document text
- https://rolcsi-bau.hu/userfiles/files/80027704707.pdfIn PDF document text
- http://ewtch.com/upload/files/tonelebavivajogupag.pdfIn PDF document text
- http://fotografoenricogiampieri.it/userfiles/files/rinume.pdfIn PDF document text
- http://anneadamslaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/80492144892.pdfIn PDF document text
- https://www.penyembuhanholistikreiki.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a1f7340944---76293851087.pdfIn PDF document text
- https://dadrarad.ro/userfiles/file/xotewigisetuponuzekoti.pdfIn PDF document text
- http://barrybusiness-crm.com/ressource/devis-photo/files/61891976260.pdfIn PDF document text
- https://luxurytravel-show.com/wp-content/plugins/super-forms/uploads/php/files/94c91a43820e1425b85fa83ed4cd9ed8/wudenesil.pdfIn PDF document text
- http://ilkemymm.com/image/files/52534197764.pdfIn PDF document text
- http://seanbittinger.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/45958661481.pdfIn PDF document text
- http://sanarina-coaching.de/ckfinder/userfiles/files/66763248883.pdfIn PDF document text
- https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/16137f723da9fe---34343674586.pdfIn PDF document text
- https://saigonservices.vn/images/uploads/files/rejofagunapafubil.pdfIn PDF document text
- http://antropolog.ru/userfiles/file/4148115262.pdfIn PDF document text
- http://wsp.pl/userfiles/file/73613914195.pdfIn PDF document text
- https://wecareu.net/ckfinder/userfiles/files/66975379507.pdfIn PDF document text
- http://jjinline.org/file_upload/file/31734717423.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_off0000b4fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB4FD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
|||
font_01_sfnt_off0000cd0f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD0F | 16028 bytes |
SHA-256: bbab1cc19cb1c76cdf1f6088f17eae5e84eeec853d95449344e3ca2ab3c42d7e |
|||
font_02_sfnt_off0000f5f2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5F2 | 10944 bytes |
SHA-256: d2a2fe61caf61afd7309894e5b2e59b13c43c7513433d81bf41fa9f3d5d753b0 |
|||
Open this report in the interactive analyzer, or submit your own file for analysis.