MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1553.005 Security Software Installation
This PDF was flagged by ClamAV as a phishing trojan and by an ML classifier as malicious. It contains heuristics indicating it's a link farm pointing to compromised CMS uploads and potentially disposable hosting. Notably, it includes an instruction to disable security software, a high-risk indicator for malicious documents. The document body is heavily obfuscated, preventing a clear understanding of its specific lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
Heuristics 8
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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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Security software disable instruction high SE_SECURITY_BYPASSDocument instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/fccca1e144a6201156359472b6f892f6/jokozomiribodu.pdf
- http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160b8266a90129---48119413305.pdf
- http://afghansolar.com/userfiles/file/tiwaxoxaluvododopoz.pdf
- https://www.urban-quartz.co.uk/wp-content/plugins/super-forms/uploads/php/files/1e5a377ba451b35707e24fde8c2d68c4/tovafo.pdf
- http://x04ydivan.ru/userfiles/file/79324196600.pdf
- http://antropolog.ru/userfiles/file/40221929368.pdf
- http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/pqsfga02ejt8337he5qut68ij3/76465410986.pdf
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607cd3c0dbd53---2020394362.pdf
- https://completecollegestrategies.com/wp-content/plugins/super-forms/uploads/php/files/bca71cdab59bae46f0e8652a63af91fe/15170490233.pdf
- https://synersys.fr/contenu/file/36206844816.pdf
- http://xn--80aafkqcanfpgnhbng3b5i9a.xn--p1ai/pict/file/52647089353.pdf
- https://mosallaesf.ir/uploads/ck/files/57597255558.pdf
- https://jennysbooks.com/wp-content/plugins/super-forms/uploads/php/files/2abab0bd455d927edf45b3ca8162dff4/xanopizagu.pdf
- http://dhleisure.com/ckupload/files/45968167671.pdf
- http://ahsaipu.com/v15/Upload/file/20215552652053.pdf
- http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a06b32bce37---87911141563.pdf
- http://eltonltd.ru/sites/default/files/uploads/1221340407.pdf
- https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/4c377e1a22e19be7a99a885fd444c298/tipojoj.pdf
- http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609447fe69aa4---16981655005.pdf
- http://broadviewlibrary.org/uploaded_bvlib/file/xepuvi.pdf
- https://aannemingsbedrijfbarthulsbosch.nl/userfiles/file/36178405395.pdf
- https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/160854075108a8---vedopu.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=five+nights+at+freddy%27s+4+free+download+full+version+pc
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f94e.bin67cd4328d5fd6e9134f1b1c85b1680a1a932e20a6f130eb7c914dfd2913d640b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF94E | 16640 bytes |
font_01_sfnt_off00011009.binb8f26d34119c27801dcc7c2823f4fa7c0b2a7764b6e35a34dd0e57e25a57846f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11009 | 11356 bytes |
font_02_sfnt_off00012aaa.bin968a7eb50a7d464bd4c20110a4311274254654c9e39f1f76bda7f1f0f3b0912a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12AAA | 18496 bytes |
font_03_sfnt_off00015aa4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15AA4 | 16792 bytes |
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