MALICIOUS
216
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious File
The PDF document exhibits characteristics of a phishing lure, directing users to a link farm hosted on compromised WordPress sites. The heuristic 'SE_BROWSER_INSTALL_LURE' indicates the document likely prompts the user to install a browser extension or update to view content, a common tactic for malware delivery. The ClamAV detection and ML classifier further confirm its malicious nature, classifying it as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
Heuristics 8
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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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/1606cbb7e5a487---74023267488.pdf
- https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/38bf12e6759ade57bcb6d568ce8e9297/vegepako.pdf
- https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1608b571c07795---xedujep.pdf
- https://asset-books.com/userfiles/file/35974993624.pdf
- https://gauravkankariya.com/wp-content/plugins/super-forms/uploads/php/files/bj6fhfvvj3oampfsr057p06sj3/posenu.pdf
- https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b4d72e1fe85---24438351960.pdf
- https://hotellemaritime.com/hotel/upload/files/bapakoxevaragarumo.pdf
- http://alphanaturehk.com/userfiles/file/zelikoweja.pdf
- http://staples1981.com/clients/b/ba/ba027a536d51c1d997ee76cae6dc9017/File/39022873357.pdf
- http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607075e8966f3---xuwebizedupamusuj.pdf
- https://www.skyline-recruiting.com/wp-content/plugins/super-forms/uploads/php/files/22acf1d6dcd4610a09467fc56da631e4/wasutekotug.pdf
- https://doitsolutions.co/wp-content/plugins/super-forms/uploads/php/files/dba183e5481027a0723d7ac7f66195a4/74345121662.pdf
- https://digidatadecolombia.com/wp-content/plugins/super-forms/uploads/php/files/0c0b88976f6a25c254774692eeea6ef9/25751308401.pdf
- http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160774e15e5396---gadebu.pdf
- http://beastyenergy.com/userfiles/file/20297292533.pdf
- https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/160982b81e4a41---libikukopewemedopipaw.pdf
- http://vudafrique.com/wp-content/plugins/super-forms/uploads/php/files/66b837fa20cb78aa6b77271377a691c3/xaxuxajelamawotonenotus.pdf
- http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ea39f04d4f---pujokifobemibiluwidewu.pdf
- http://www.peopleoftheheath.com/wp-content/plugins/formcraft/file-upload/server/content/files/160852805d7b5a---miser.pdf
- http://seoulmenu.com/uploads/files/65057620532.pdf
- http://caratow.eu/userfiles/file/16981631904.pdf
- https://sckprime.com/wp-content/plugins/super-forms/uploads/php/files/917a7e6a4070789acc2de17039985531/60674748252.pdf
- https://tcufroghouses.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d9826141eee---72181538485.pdf
- http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16091570a191fd---xulididokurariniwowa.pdf
- http://tai-yang.tw/taiyang/upload/file/foxukakadubasum.pdf
- https://www.tonygssoulfood.com/wp-content/plugins/super-forms/uploads/php/files/0b9451098bf1519c3a8bccf6684d642b/5596403634.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=this+one+summer+pdf+download
- 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_off0000f206.bin17dd97a996ebdf67c7cc96769ae21b946ba1fff936a0684b63cf38969f326dee |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF206 | 10816 bytes |
font_01_sfnt_off00010ac6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AC6 | 16792 bytes |
font_02_sfnt_off000122d8.bin9239bf779731d78777f51ffdc6e4d977f3870fda3670a91078b593aebe675f0a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122D8 | 17364 bytes |
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