MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links to external websites, many of which are hosted on compromised or disposable domains, indicating a link farm designed to redirect users to malicious content. The document body is heavily obfuscated and unreadable, suggesting it is not intended for user interaction but rather as a container for these malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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 http://trlgpc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/nonug.pdf
- http://rauvuonsach.com/images/uploads/files/21875692138.pdf
- http://fotostudiovaccari.it/userfiles/files/45766130121.pdf
- https://geneolock.com/locktactyuma/userfiles/file/darokuramu.pdf
- http://sysquare.com/UserFiles/files/saxapebafikodiferemedu.pdf
- https://aihr-iadh.org/uploads/FCK_files/file/dosaxifobugebil.pdf
- https://engineeredrepinc.com/wp-content/plugins/super-forms/uploads/php/files/de1c24a800b7db3006843319aec17b27/11938133550.pdf
- https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/7svo695a5jkujs5qp91v32b23k/sapurufamevikikimun.pdf
- https://aawyx.com/sites/default/imageuser/file/13126095984.pdf
- http://uniquecharacters.com/upload/files/71416254294.pdf
- https://privatecambodiatour.com/userfiles/file/supuxogatuwusegom.pdf
- https://gk-termopanel.ru/wp-content/plugins/super-forms/uploads/php/files/789572ca2ac119eeb015f42b4f338d03/77466122688.pdf
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610026a22d85a---judelapet.pdf
- http://hydrem.ru/images/file/vivifegox.pdf
- http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c724dc6ef99---pepexirivedip.pdf
- https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5f9eaad0a5---96052794904.pdf
- http://bvmnotarissen.nl/app/webroot/files/ckeditor_files/files/99550538126.pdf
- https://tavio.ru/files/file/numafumetu.pdf
- http://bertolinacare.it/file/zevura.pdf
- http://vieclamquantri.net/upload/files/75625802673.pdf
- http://lncxjzxxw.com/upload_fck/file/2021-5-22/20210522064509180807.pdf
- https://apartmani-mestrovic-krk.hr/files/bebijivese.pdf
- http://photou.cc//ckfinder/userfiles/files/33832534248.pdf
- http://apartamentosalbatros.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b385b10cd44---80522743444.pdf
- https://tideandtigers.com/ckfinder/userfiles/files/terivixalipobinen.pdf
- http://arcdesantmarti.com/biocop/Images/images-editor/file/27379251561.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=why+did+my+skullcandy+earbuds+stop+working
- 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_off0000f520.binb57216bb939254710f25b96f2a4c0ae216ef947b6e797c646be1bb6d04c2e5b3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF520 | 17356 bytes |
font_01_sfnt_off00012268.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12268 | 16792 bytes |
font_02_sfnt_off00013a7f.bin7587301d6e2a35110f410169c4a6412ac63ac7ee2238f4e6a1802059b9c06be3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A7F | 11484 bytes |
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