MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document that contains a link farm pointing to various PDF files hosted on disposable domains, a common tactic for phishing and malware distribution. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates that the document likely instructs the user to open a password-protected archive, a method used to bypass gateway security. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9911
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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://ketchas.ru/uplcv?utm_term=crear+fondos+de+pantalla+android
- http://sov.tranovice.org/webpagebuilder/ckfinder/userfiles/files/15284578889.pdf
- http://milwaukee.center/userfiles/file/vudob.pdf
- http://probeg2000.ru/files/userfiles/files/34544415540.pdf
- https://moniimpex.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613af5a0d4963---bufax.pdf
- http://szentdorottyapatika.hu/files/godovutuvetuwak.pdf
- https://epagneuls-bretons.fr/caningest/images/file/walawesamulitadux.pdf
- https://strategieb2b.com/userfiles/file/32647783317.pdf
- http://rld-carbon.ru/file/56971888909.pdf
- http://volkshilfe-ktn.at/images/content/files/90727753144.pdf
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/0qe4e9011o52v1lfr4f27p2070/92929077074.pdf
- https://dalton-english.com/userfiles/file/zigegejan.pdf
- http://tomgiongvip.com/uploads/files/file/funumevirolidobife.pdf
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161365e323ea02---67800267251.pdf
- http://xn--80aejmo0alc.xn--p1ai/ckfinder/userfiles/files/77134351106.pdf
- https://promise-land.com/upload/file/gavum.pdf
- https://forkidsvietnam.vn/wp-content/plugins/super-forms/uploads/php/files/t25abcric9j017o5628h7irpg0/japinexezosijezekubodetop.pdf
- http://www.vinoplaza.nl/img/upload/files/77465448381.pdf
- http://agro-partner.com/Image/files/77865201389.pdf
- https://livres-d-art.com/ckfinder/userfiles/files/98529025865.pdf
- http://pathtojanna.com/userfiles/files/58565260545.pdf
- http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613c69415048b---pisagewilagaroxemaziriw.pdf
- http://phutungtdc.com/upload/files/vodotuzufijumerib.pdf
- http://uro-medical.pl/zdjecia/fotki/file/gopolesutejeb.pdf
- https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/5e95fd7b0b7eb481fee43f225925e072/xiwajujiwudekaweruz.pdf
- http://f-kcc.jp/user_data/userfiles/files/42054438281.pdf
- http://xn----ctbguteehkho5h.xn--p1ai/ckfinder/userfiles/files/ponek.pdf
- http://tlumacz-francuskiego.pl/userfiles/file/30521563335.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_off0000d735.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD735 | 16792 bytes |
font_01_sfnt_off0000ef4c.bin9adef7b8320854059975d2105adb7b1a2ac7b7aedfa3d9c8ea1ffad268f0cac5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF4C | 10520 bytes |
font_02_sfnt_off0001075a.bin670d959dd28540dae94eaa8499344373c1dc5b80bfa4910983762673d1f6a4ce |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1075A | 18816 bytes |
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