MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs that point to various domains, many of which are associated with compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to potentially harmful content. The presence of external URI links and the overall structure strongly suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9971
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://crysiq.ru/uplcv?utm_term=net+framework+4.0+v+30319+offline+installer
- http://ktcz.eu/files/files/30280802519.pdf
- http://lpxs168.com/filespath/files/20210903155535.pdf
- https://xn--90aweabvm.xn--p1ai/ckfinder/userfiles/files/56767431351.pdf
- https://www.dynasil.com/wp-content/plugins/super-forms/uploads/php/files/4967d37d58aabb6b25e3b7281475b4bc/rubet.pdf
- https://siriusdynamics.com/assets/uploads/files/xijofuse.pdf
- https://mytshirtcreator.com/app/webroot/files/file/46953208622.pdf
- http://samtekelektrik.com/files/fitapovovexinajag.pdf
- https://812423.qqtogeljackpot2.com/contents/files/25078527853.pdf
- http://osstemcardiotec.com/files/fckeditor/file/18446857686140575082eec.pdf
- http://denetimmusavirlik.com/userfiles/file/mifowurusanowaze.pdf
- http://signauction.net/userfiles/file/ruwuxop.pdf
- https://ikansambel.com/contents/files/fomomizalamabinujodav.pdf
- http://decoworld.in/dayafter/uploadimages/newsimages/file/29511980737.pdf
- http://adec-interiors.net/Uploads/file/zatatukefutedenasuv.pdf
- https://gestionarival.com/userfiles/file/kizibimatanesoxukulupufut.pdf
- https://toliveinchristjesus.ceosale.catholic.edu.au/application/third_party/ckfinder/userfiles/files/39743064402.pdf
- http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/1dcbe911f44329750e0e834b26daa5ac/dijowidepeta.pdf
- https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/16150e5816c5fc---pajed.pdf
- https://adikketiga.com/contents/files/67529351370.pdf
- https://datajournonepal.org/files/nubufazi.pdf
- http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/161535e9ad7d87---89065760542.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000bf80.bin067329df87a5004ba41a2c1e468184c2afb10fe41f1508c4b552013aca7c2b41 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF80 | 19696 bytes |
font_01_sfnt_off0000f339.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF339 | 16792 bytes |
font_02_sfnt_off00010b50.bin23a071f7ce45610fa1ea7e2a6df3b12a0f32ec6b796c4ecbe62cea1ff49b9fe6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B50 | 11252 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.