MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded JavaScript stream and numerous external URIs, many of which point to compromised CMS uploads or disposable hosting, suggesting it functions as a link farm. The primary purpose appears to be redirecting users to potentially harmful external sites, possibly for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9833
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 http://abwnickersonplaza.com/uploads/files/lenizoli.pdf
- http://orderleesushi.com/uploads/files/pozosodagoxoxodiboki.pdf
- https://pollackmihalyiskola.hu/ckfinder/userfiles/files/32563737751.pdf
- http://grappin-annat-como.com/userfiles/grappin-annat-como.com/file/22922062604.pdf
- https://www.agro-zavod.ru/app/webroot/js/ckfinder/userfiles/files/71447818493.pdf
- http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/goiortul9cc01ir75kfns4ljk7/pefaronipumotukizudawar.pdf
- http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/9522e2c0eeae3ce30a5d9a3127533a63/12898182702.pdf
- https://portugaliaimagyarok.com/ckfinder/userfiles/files/nilijurelawezupuzil.pdf
- https://xosobacninh.vn/webroot/img/files/49245882142.pdf
- http://arisutour.com/ckupload/files/fozovuk.pdf
- http://dorp.pl/userfiles/files/55997081994.pdf
- http://jszl-rolls.com/filespath/files/20210906175247.pdf
- http://harmonie-avion.fr/actualite/files/45474217337.pdf
- http://pocatellocampfire.com/wp-content/plugins/super-forms/uploads/php/files/v2i4f7lhus94lmuc3gj6dftb16/daret.pdf
- https://iqmuseum.mn/uploads/files/75031052596.pdf
- https://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/1cb91f0d3ad087985cfa9a079ae260b8/sefoduwoga.pdf
- https://wlao.on.ca/wp-content/plugins/super-forms/uploads/php/files/dd5cbd151688ef33b0fbfee5f7ab71eb/mikadup.pdf
- https://mangalargalux.com.br/ckfinder/userfiles/files/duferupapakasamoxuvud.pdf
- http://sushimura1.com/uploads/files/14971308348.pdf
- http://webursitet.org/Files/file/28746492233.pdf
- https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/6a09d51a1c055aaa4f76efaeded9ead6/52591607679.pdf
- http://honghuibio.com/d/files/gatokabapokovez.pdf
- http://trungnguyenjsc.vn/uploads/image/files/1050613187.pdf
- http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1612f09671d99f---xinivoruwof.pdf
- http://373113.linker.tw/files/bixurimaso.pdf
- http://safiorida.dk/operatori/userfiles/file/8109754215.pdf
- http://xedaptap.net/userfiles/file/ripasu.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=application+software+sample
- 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_off0000d81a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD81A | 16792 bytes |
font_01_sfnt_off0000f02c.bine250b5479bc9d014d1cd9ca9e3207aa7a606b011ec816965254e9a3def3e4157 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF02C | 16784 bytes |
font_02_sfnt_off00011ba4.bin0b95865af24f2235fc99a6b305909277a022cfba3de324364cb6172a37a7d21d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BA4 | 10708 bytes |
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