MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous embedded URLs pointing to various domains, many of which appear to be part of a link farm hosted on compromised WordPress sites. The primary URL, 'https://pistant.ru/uplcv?utm_term=the+soviet+chess+primer+ebook', suggests a lure related to an ebook, likely to entice users to click through the malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://pistant.ru/uplcv?utm_term=the+soviet+chess+primer+ebook PDF link annotation
- http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/16138325682ce0---43810392160.pdfIn PDF document text
- http://perilatomsk.ru/ckfinder/userfiles/files/27988656118.pdfIn PDF document text
- http://hycxchina.com/filespath/files/20210915165817.pdfIn PDF document text
- https://wyslijpaczki.pl/app/webroot/files/userfiles/file/firokutewexidorakekurufi.pdfIn PDF document text
- https://eravukappalpalli.com/userfiles/file/janipuxoxogufunojiferum.pdfIn PDF document text
- https://christianklein.eu/Quansis/ckfinder/userfiles/files/67210604826.pdfIn PDF document text
- https://www.ijestr.com/ckfinder/userfiles/files/73689591441.pdfIn PDF document text
- https://whatshoulditcostme.com/userfiles/file/2220142212.pdfIn PDF document text
- https://cordovajewelry.com/images/file/bovekile.pdfIn PDF document text
- https://ppkh.net/userfiles/file/68872607717.pdfIn PDF document text
- https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613c3bbe1d400---28565899548.pdfIn PDF document text
- http://grupafurman.pl/!mag2011/userfiles/file/rubobavazoded.pdfIn PDF document text
- https://sysyanginguvenlik.com/uploads/files/ribaduwepasuvujado.pdfIn PDF document text
- https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/161403edd773ef---87448241389.pdfIn PDF document text
- https://manhremhoangvan.com/wp-content/uploads/files/30063642537.pdfIn PDF document text
- http://groupkaishan.com/d/files/bowelipe.pdfIn PDF document text
- https://autopits-directo.migrupoq.com/ckfinder/userfiles/files/dedozepilosexefoxoxenenu.pdfIn PDF document text
- http://scandinavia-ex.com/images/blog/file/41617889511.pdfIn PDF document text
- http://soc-in.com/data/media/files/fubazujojo.pdfIn PDF document text
- https://organicfertilizerproduction.com/d/files/rulijifesan.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_off0000b4c5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB4C5 | 17332 bytes |
SHA-256: 099dd8f586404c8d5ab492da7c4bb62b5a7788c51e70fcf9abd7099c8129f931 |
|||
font_01_sfnt_off0000e154.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE154 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
|||
font_02_sfnt_off0000f96b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF96B | 10588 bytes |
SHA-256: 4a7c16a6fd8b47af2e30fcd71f81d371e3e82c1a44be732e5b9dd00b90ac3df8 |
|||
Open this report in the interactive analyzer, or submit your own file for analysis.