MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to compromised WordPress uploads and disposable hosting, suggesting it's designed to redirect users to malicious sites. The embedded URLs, such as 'https://krisoc.ru/uplcv?utm_term=popcorn+time+android+vpn+free', likely serve as lures for phishing or malware downloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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://krisoc.ru/uplcv?utm_term=popcorn+time+android+vpn+free PDF link annotation
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/32siun65sna0c0rned231nolm3/61737157572.pdfIn PDF document text
- http://tcsklife.com/filespath/files/20210905205001.pdfIn PDF document text
- https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/e71fe6e022bee0aae2c07d6b08d4267d/31102285734.pdfIn PDF document text
- http://karpatskiles.ru/store/files/vejupizobakotisozab.pdfIn PDF document text
- http://csaladiegyteruautok.hu/userfiles/files/68231029919.pdfIn PDF document text
- http://wellnesszeewolde.nl/site/data/ws/files/68437931107.pdfIn PDF document text
- https://agrando.cz/files/file/78023417131.pdfIn PDF document text
- https://kapefashion.com/files/files/72617831624.pdfIn PDF document text
- https://psg66.ru/admin/ckfinder/userfiles/files/98537896815.pdfIn PDF document text
- http://beiks.info/public/file/27186885034.pdfIn PDF document text
- http://andreuma.madteam.net/ckfinder/userfiles/files/zuvavu.pdfIn PDF document text
- http://espressobuilders.com/app/webroot/files/userfiles/files/34036298812.pdfIn PDF document text
- https://regenerateacademy.com/file/fadogolovawiganatedamat.pdfIn PDF document text
- http://serdceprirody.ru/userfiles/file/9254547857.pdfIn PDF document text
- http://urduhadith.org/survey/userfiles/files/64086217722.pdfIn PDF document text
- https://dortmundpools.com/contents/files/54966156997.pdfIn PDF document text
- http://meskerjager.nl/media/files/12547483563.pdfIn PDF document text
- https://resortweeks.pro/userfiles/file/83621978530.pdfIn PDF document text
- http://topaslt.com/userfiles/file/81317487433.pdfIn PDF document text
- http://belv.ru/userfiles/file/wuxibiwa.pdfIn PDF document text
- http://cabanagarden.hu/editor_up/depat.pdfIn PDF document text
- https://ihotel2b.com/upfiles/editor/files/1699700270.pdfIn PDF document text
- http://tanriovermensucat.com/uploads/genel/files/gedevajufebaxudo.pdfIn PDF document text
- https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/858ae279418c8326263011e39ff88a9b/50078176787.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_off0001102d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1102D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00012844.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12844 | 10636 bytes |
SHA-256: 4c0eb926c2da6b53eb8f6d4db1ca7626e84f63ca33e7f9bf8f2b4c664110db23 |
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font_02_sfnt_off0001409f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1409F | 20396 bytes |
SHA-256: 630be7a52fcbd46ae74a606720608f1937542930ebd7d812f78fd4bbd8aae4c5 |
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