MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ClamAV as Pdf.Phishing.Trojan. It contains embedded JavaScript, which is a common technique for executing malicious code within PDFs. Additionally, numerous external URLs were extracted, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm or phishing lure. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://crewmak.ru/uplcv?utm_term=mot+ki+shayari
- http://www.iamgoingto1996.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143cf3820ebd---novudawimomupuwafe.pdf
- http://donghobaoan.com/uploads/files/29471627007.pdf
- http://ipea.kr/userData/board/file/23498136386.pdf
- http://dalieuht.com/app/webroot/uploads/files/tizisevodoxa.pdf
- https://eagle-aviation.com/userfiles/files/jovigokinezumip.pdf
- http://lucchetta.net/userfiles/files/2804534140.pdf
- https://phr4u.com/files/piduni.pdf
- http://www.uvhk.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c42c0db39a---giginalofozo.pdf
- http://373113.linker.tw/files/ruzituduzetevidoton.pdf
- http://unite-chem.cn/upload/files/pufezodino.pdf
- http://cateringkieuan.com/uploads/userfiles/file/80749181575.pdf
- https://pikhospital.com/ck_uploads/uploads/files/77187065556.pdf
- http://geometracosentino.com/userfiles/files/retutedexewagur.pdf
- http://grandrosso.com/js/upload/files/78813640972.pdf
- https://astoraccessories.com/uploads/ckfinder/files/rotut.pdf
- https://thepetrichortouch.com/wp-content/plugins/super-forms/uploads/php/files/ob0v1bdnvhprlr7b200oda8ke8/xedukizadon.pdf
- http://goldenagegroup.vip/userfiles/file/kosawejatixadedajorizud.pdf
- https://yenicekentkaplicasi.com/userfiles/file/26161262008.pdf
- http://colegiosantarosa.com/uploads/imagem/file/48613300256.pdf
- http://florylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/75199036689.pdf
- http://qazaqbanki.kz/data/content/files/mesatipojebawid.pdf
- https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/ca17294460e42aeb97f62a531a5a243d/xesipunevar.pdf
- https://sibois.eu/userfiles/file/58896369061.pdf
- http://geoscan.it/userfiles/files/8553776806.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_off0000b187.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB187 | 16792 bytes |
font_01_sfnt_off0000c99e.bin433df08990adc9c1ebefe8115368958b71ff06a10b503975244dbeefeee9c6a9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC99E | 10124 bytes |
font_02_sfnt_off0000e06c.bin4c432a318dc85608637af92410d3f62667e2065d62576c3bf1aa96441cf63f29 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE06C | 15372 bytes |
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