MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, indicating a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 6
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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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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://laborke.ru/uplcv?utm_term=normal+distribution+curve+chart PDF link annotation
- http://odpadykj.cz/UserFiles/File/pavexovawalosu.pdfIn PDF document text
- http://xn--b1akwe.xn--p1ai/userfiles/file/fefoforasofidokapuzawidi.pdfIn PDF document text
- https://www.uniqueartzz.com/wp-content/plugins/super-forms/uploads/php/files/gh6bbgvngh0sc8oq4t5va7c8nd/52862484399.pdfIn PDF document text
- http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ccfb65c1e8---xasax.pdfIn PDF document text
- http://chikatere.com/Upload/files/33576301973.pdfIn PDF document text
- http://skogsformedling.se/bilder_umeny/File/35796567092.pdfIn PDF document text
- http://nitm.ac.in/nitmeghalaya/ckfinder/userfiles/files/tenafigologafepixesaja.pdfIn PDF document text
- https://g3az.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9c21597183---49784549377.pdfIn PDF document text
- http://myphamvickwhitebeck.vn/luutru/files/75901474700.pdfIn PDF document text
- http://kovospm.cz/fotky/file/70614742356.pdfIn PDF document text
- https://toromecanicorodeo.com/files/14089872314.pdfIn PDF document text
- http://sattamatkapatti.com/userfiles/file/vanadunusikep.pdfIn PDF document text
- http://k-yoga.org/file_upload/spaw_upload/file/20210504044740.pdfIn PDF document text
- http://dringraldi.com/clients/7/73/73ccc230e5ee2b020474e4a43bcd07af/File/74060812223.pdfIn PDF document text
- https://nazragame.com/calisma2/files/uploads/68016713683.pdfIn PDF document text
- http://longvu.vn/Images_upload/files/31693150218.pdfIn PDF document text
- http://alliance-vietnam.com/upload/files/woxebore.pdfIn PDF document text
- http://freewest.at/tekekafutiloxigitijazem.pdfIn PDF document text
- http://www.aadhar-interior.com/userfiles/file/33858428732.pdfIn PDF document text
- http://pantipplaza.com/userfiles/file/tulezo.pdfIn PDF document text
- http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/sjaog3q188vqsu53440pgc5ce0/ligutafijabid.pdfIn PDF document text
- http://aisef.org/uploads/userfiles/file/file/83463004905.pdfIn PDF document text
- https://thewaves.net/wp-content/plugins/super-forms/uploads/php/files/vkcfkrvulav8mhsik8qktr7h57/jovilugatevitebizex.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000df98.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF98 | 10916 bytes |
SHA-256: c41123df2fa05429674fedf1322876f2c9ffda45761d5c26eb50b0de7d750d69 |
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font_01_sfnt_off0000f8af.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8AF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000110c1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x110C1 | 17888 bytes |
SHA-256: 944a46231ed0af5bb4e6797540d13dcee5a1d3a1b779c809dcbbab4810ff9ccc |
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