MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains a large number of embedded URLs, many of which point to compromised CMS upload directories, suggesting a link farm designed to redirect users to malicious sites. The document body is unreadable, but the heuristic firings strongly indicate a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9970
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://miele-service-center.ru/uploads/files/75572519753.pdf
- http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/ad6df12d1328e6d8af3e9bf88f44f54f/63510326635.pdf
- http://elisa5888.com/shopadmin/upload/files/82416725322.pdf
- https://medgarlci.com/wp-content/plugins/super-forms/uploads/php/files/928ca10d6558643f58ba26643b3d73bf/gobilowudenelenipuvote.pdf
- http://maxidmum.com/images/upload/fck/file/38471189918.pdf
- http://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b58a1d6df8b---40678561490.pdf
- http://bochosushi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080e1a2c62d9---90769615137.pdf
- https://roc.mn/uploads/files/zakova.pdf
- http://scissortailfarms.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607756133ea14---wojagokigavasoxidetewa.pdf
- https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/2f956e874c3dce200ca9e36420614189/59542159680.pdf
- https://krimgranit.ru/wp-content/plugins/super-forms/uploads/php/files/d078f0c4eb341a916df36e54d3b10617/nigijumu.pdf
- https://cwlighting.com/wp-content/plugins/super-forms/uploads/php/files/5050c920522b486a725e0dc08d8f3e3f/kixopisax.pdf
- http://ecohort.com/userfiles/files/vazudila.pdf
- http://beergolfers.com./blog/images/file/pesuxedowe.pdf
- http://udokutscher.de/gfx/userfiles/files/bomexot.pdf
- http://kondicionery-vidnoe.ru/upload_picture/file/jekofapexetinitopegeratu.pdf
- https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607bbe98d9ddd---26053369547.pdf
- https://archltginc.com/wp-content/plugins/super-forms/uploads/php/files/b0e7b739c3b848781c73098a71e6c276/56795428071.pdf
- http://glina-master.ru/admin/ckfinder/userfiles/files/4279512180.pdf
- https://wills.sg/wp-content/plugins/super-forms/uploads/php/files/af4caa2f7176c4a05e1e87ffd2d066ec/25799728701.pdf
- http://angelojrobles.com/admin_initial_test/userfiles/file/zupupukinabugifaj.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=common+factors+of+8+and+10
- 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_off0000ea6e.bine5384ccf3097d24c07025372ad0f48a66ad1f99be822d2a2964f8c315d8b08ba |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA6E | 10780 bytes |
font_01_sfnt_off00010359.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10359 | 16792 bytes |
font_02_sfnt_off00011b6b.bina880491ed69b92bc37ebc2825cabb466199730e64c70880060d2d798cf83a9dd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B6B | 17596 bytes |
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