MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains numerous embedded URLs pointing to various domains, many of which appear to be compromised or disposable hosting, suggesting a link farm designed to redirect users. The presence of external URI heuristics and link farm detections indicates the primary purpose is to lead users to malicious external content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://cructi.ru/uplcv?utm_term=easy+way+to+convert+pdf+to+excel PDF link annotation
- http://szentistvanpatika.hu/upload/file/besatedexikitagomu.pdfIn PDF document text
- https://tipresentoio.it/images/file/87365247540.pdfIn PDF document text
- https://www.bussmann-tiefbau.de/ckfinder/userfiles/files/kevufiduputiwomu.pdfIn PDF document text
- https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/16144e27472bb7---17433513170.pdfIn PDF document text
- http://vibrator4you.cz/UserFiles/File/46876656262.pdfIn PDF document text
- http://mavelikaradiocese.org/rapha/ckfinder/userfiles/files/28913161343.pdfIn PDF document text
- http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/6b98fdddd32a845ff347880ddfb47f23/zupubufiw.pdfIn PDF document text
- http://floramarble.com/uploads/35106729253.pdfIn PDF document text
- https://tiguan-wiki.ru/file/49739742385.pdfIn PDF document text
- https://sunkamalzemecilik.com/userfiles/file/13362968223.pdfIn PDF document text
- http://bielle-srl.com/userfiles/files/bavijoxixozijufak.pdfIn PDF document text
- http://asja.ua/userfiles/file/18851087750.pdfIn PDF document text
- http://ilkjv.com/Images/Media/files/64367754561.pdfIn PDF document text
- http://fantasymusic.it/userfiles/files/terewufapipuxow.pdfIn PDF document text
- https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16144bcc4366e8---satokirugovo.pdfIn PDF document text
- https://francoisdaulte.com/ckfinder/userfiles/files/14582630751.pdfIn PDF document text
- http://dialog-seversk.ru/jsplugins/ckfinder/userfiles/files/sikudefuwarob.pdfIn PDF document text
- https://zapret-rf.org/web/img/podborky/files/89963860177.pdfIn PDF document text
- http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/1614c5e7284220---wibomovibuwazogewosowunu.pdfIn PDF document text
- http://nanumed.ro/uploads/files/72267394671.pdfIn PDF document text
- http://jump360.co/upload/files/20210921105900.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_off0000f516.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF516 | 17444 bytes |
SHA-256: 2c3359889befa77c32206b2f83c5ff22c612db00e9ba33d0e2fa47b02e5a6659 |
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font_01_sfnt_off000121b9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121B9 | 10872 bytes |
SHA-256: 54676f71f561090b8e6e2c3023f0a0590ec949c5688c9fe21a91ef6a460b4c23 |
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font_02_sfnt_off00013b20.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13B20 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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