MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a high-severity PDF_RANDOM_URL_LINK and ML_NYX_PDF_MALICIOUS. It contains numerous links to external websites, many of which are hosted on compromised WordPress installations, suggesting a link farm or phishing lure. The ClamAV detection as Pdf.Phishing.Trojan further supports its malicious nature. The file likely serves as a delivery mechanism for further malicious activity by directing users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9986
Heuristics 7
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://global-gypsum.com/wp-content/plugins/formcraft/file-upload/server/content/files/160979cc477d3a---tefidekuvitejigo.pdf
- http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/1609913085890e---94680625609.pdf
- https://lion-trading.co.uk/wp-content/plugins/super-forms/uploads/php/files/kep1vgtmdl7b2odrgdgpigrrtg/safededobud.pdf
- http://2990592.ru/ckfinder/userfiles/files/bevupojakasej.pdf
- http://scantech3d.com/files/63990081467.pdf
- https://www.techsrollout.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f82fe39b60---24910145477.pdf
- https://www.americansummercamps.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607276905e97d---moxaletupesafezuzawu.pdf
- https://china-glass-mosaic.com/userfiles/files/20210802_150611.pdf
- http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607162f13270c---49522020125.pdf
- http://debeight.net/UserFiles/File/44566384473.pdf
- http://karinameal.com/imgdish/files/bufozaku.pdf
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/d6a8c152846904485f1df3af14eb6fb1/vewisuwelafonopinajije.pdf
- https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/dlqqj541491loks91qugg5khkb/92600143353.pdf
- https://sip7.pl/autoinstalator/sip7.online/wp-content/plugins/super-forms/uploads/php/files/51317417668b463f7824d4eafe98e973/17045204608.pdf
- http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/2k5j53bqj8p4sq06lg3dngm3s2/tedujafosugesojimiv.pdf
- http://markone-tools.com/upload/files/pamupijuz.pdf
- http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085c3160010c---24861623138.pdf
- http://xn--or3bi2da319p.com/upload/fckeditor/file/fituxub.pdf
- https://koltoztetes-szallitas-lomtalanitas.com/ckfinder/userfiles/files/55802846712.pdf
- http://hi-reid-solutions.com/wp-content/plugins/super-forms/uploads/php/files/48e4575fe4575c834d0d5e1dc055bedd/93443082727.pdf
- http://scbczy.cn/up_files/file/20210616_145121.pdf
- http://jgbt.us/pds/userfiles/files/61003566911.pdf
- http://beastyenergy.com/userfiles/file/jukosiko.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=joindre+un+fichier+pdf+dans+facebook
- 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_off0000f54f.bin560fc774e7b8bb0727306dfabecf67022d614de3895b5841fab3721ba631550e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF54F | 10896 bytes |
font_01_sfnt_off00010e3c.bin5836d4704c815fa27128d490b6c41e7ddfe2e007c9fc2c41ad985df8700d6051 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E3C | 18872 bytes |
font_02_sfnt_off00013d89.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D89 | 16792 bytes |
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