MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious File
T1059.007 JavaScript
This PDF document was flagged by multiple heuristics and a machine learning classifier as malicious. It employs a social engineering tactic by luring the user to install a browser extension or update, a common method for credential theft or malware delivery. The document contains numerous external URLs, many hosted on compromised websites or disposable domains, suggesting it acts as a dropper or phishing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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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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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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 https://drafthe.ru/uplcv?utm_term=merging+pdf+files+offline
- https://adlinefor.com/home/webagen/public_html/korn/data/file/bofitid.pdf
- https://www.ideaklinikkadikoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093fe8aa9dc1---saxokapatuv.pdf
- http://techsystem.gr/data/uploads/ckeditor/files/sojefemori.pdf
- https://www.hausbootgeiseltalsee.de/wp-content/plugins/super-forms/uploads/php/files/lmn026s7ldj9dsum2q0151jqui/dawigiluna.pdf
- http://physocare.com/Images_upload/files/pabemagadixaxefoma.pdf
- https://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/c43b37360f4961a821fe9b6c00b65bd8/vexonasojik.pdf
- https://vietspices.asia/uploads/files/83345092801.pdf
- https://qualitylightsolutions.com/wp-content/plugins/super-forms/uploads/php/files/a6567dcc122f1e9907dd0d90c5a31802/92203873244.pdf
- http://ajisushionline.com/uploads/files/46358775833.pdf
- http://allasclub.com/campannas/file/69427085897.pdf
- https://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/ru6sfer809krks834mtnenu8cr/koxitewuza.pdf
- https://a2designbg.com/userfiles/file/nizopagupa.pdf
- http://skkouty.cz/ckfinder/userfiles/files/71606293762.pdf
- https://buka.ru/sadm_files/55298182686.pdf
- http://diakmelo.hu/ckfinder/userfiles/files/62849732271.pdf
- http://cistenivytahu.cz/upload/file/gofexatazodi.pdf
- https://renteci.com/imagens/file/pabelipijanusawazegokimi.pdf
- http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/160bdfcf15efc0---2165359934.pdf
- https://caribemed.com/userfiles/file/49429805048.pdf
- http://xn--82cac8d3ajrc0gd0bo4a7nf3qg.com/userfiles/files/97671698449.pdf
- http://abwpetersburg.com/uploads/files/74742428216.pdf
- http://aihyang.com/userfiles/file/fudixebofeli.pdf
- http://flywings.sk/UserFiles/file/denojazefopeka.pdf
- 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_off0000d42d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD42D | 16792 bytes |
font_01_sfnt_off0000ec3f.bin2f6935a0579ece89e566385f4571d8b91f0db90d1e7d3371292d6fcbaaa521d1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC3F | 18164 bytes |
font_02_sfnt_off00011aff.bind1cacb533b24b1f3ed897169d5c4b7259528925a31917814da2cd40e113ac5f4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11AFF | 10408 bytes |
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