MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links pointing to compromised WordPress upload directories and other disposable hosting, indicating a link farm designed to redirect users to malicious sites. The primary purpose appears to be directing users to these compromised or disposable hosts, likely for further malicious activity.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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 http://bangdientunhk.com/upload/files/14392643925.pdf
- http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a9463427063---luxeditupefororefixazazo.pdf
- http://midel.me/userfiles/file/fenugawopugejefebeful.pdf
- http://www.grundys.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16081bb8f569aa---mibuxubedodu.pdf
- https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/d847d9298e6e0529f0e6c63d783f2afb/56847650117.pdf
- http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/16086f31287cfb---62147004207.pdf
- http://timelessmebel.ru/wp-content/plugins/super-forms/uploads/php/files/2552730b8b82ec669a9406c5e5cbae24/xojilik.pdf
- http://c2mag.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9c1874a76---26714335189.pdf
- http://a2itsolutions.com/chop/multimedia/userfiles/file/8005984250.pdf
- https://nailseasupportgroup.com/wp-content/plugins/super-forms/uploads/php/files/002b46bc057bde8d5a5b8acc2a725d8a/31382283678.pdf
- http://anatolianlgs.com/userfiles/file/tutixike.pdf
- http://year-c.com/upload_fck/file/2021-6-2/20210602170937730763.pdf
- http://ankaser.com/userfiles/file/47804378035.pdf
- http://heyumpnd.com/userfiles/file///78393259376.pdf
- http://sity-luxe.ru/userfiles/file/8742289766.pdf
- https://roadtoring.com/wp-content/plugins/super-forms/uploads/php/files/96b8484e6631229bed5d77953ffdf877/92117397493.pdf
- http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c080f9f1567---73636735702.pdf
- http://banghetretunhien.com/media/ftp/file/sunifopofonizag.pdf
- http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606f61c56e3b5---tuwobogiwofoniwomene.pdf
- http://eraucheta.ru/uploads/file/29455424314.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=sovereign+grace+hymns
- 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_off0000c98f.binaaec67f2511559039a43176b4cf673d4190da48902caf86fc2f8866f3e7130a8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC98F | 17552 bytes |
font_01_sfnt_off0000f797.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF797 | 16792 bytes |
font_02_sfnt_off00010fae.binc4fa7adb5ce2a1e245ba6799efd77fdd604ed5a0fa2e41c51dc6516be976f473 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FAE | 10788 bytes |
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