MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous URLs, many pointing to compromised CMS uploads or disposable hosting, suggesting it functions as a link farm. The presence of external URIs and link farm heuristics points towards a phishing or malware distribution scheme, likely initiated via spearphishing.
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://chcial.ru/uplcv?utm_term=pet+rescue+saga+mod+apk+unlimited+boosters PDF link annotation
- https://mfdesign.hu/files/file/titigavevajibaxik.pdfIn PDF document text
- http://vektor-bezpeki.com/userfiles/files/95146355902.pdfIn PDF document text
- http://bugaboo-buffalo.eu/UserFiles/File/25623744408.pdfIn PDF document text
- https://impactmediaresources.com/userfiles/file/ponowepuralezeguliri.pdfIn PDF document text
- http://lamgi.pl/ckfinder/userfiles/files/75649288568.pdfIn PDF document text
- http://speednewslive24.com/assets/ckfinder/core/connector/php/uploads/files/39159567660.pdfIn PDF document text
- http://artospace.com/pics/file/58651881837.pdfIn PDF document text
- https://vidaleve.ind.br/ckfinder/userfiles/files/61615600516.pdfIn PDF document text
- http://rujiahk.com/uploadfiles/file/fibuf.pdfIn PDF document text
- http://opersan.com/file/nesifurezovola.pdfIn PDF document text
- http://lindendirect.com/tempimg/file/wewerudilozejamapeb.pdfIn PDF document text
- https://ipekyolumedya.com/resim_galeri/file/sozusabox.pdfIn PDF document text
- http://www.veronicaneal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/16130cef88af2e---29744395820.pdfIn PDF document text
- http://hasdeu.md/data/userfiles/files/vozubeligoruruxiwudimoji.pdfIn PDF document text
- http://tehpromyar.ru/media/file/66954665905.pdfIn PDF document text
- https://vdbergelectro.nl/wp-content/plugins/super-forms/uploads/php/files/70fd5a2565785cb95a59d1a73d54fc18/wogaxevepaxafutesawi.pdfIn PDF document text
- https://lensmam.com/userfiles/file/98147588806.pdfIn PDF document text
- https://www.oalysa.cz/ckfinder/userfiles/files/liluwikusib.pdfIn PDF document text
- https://chsromania.managenet.ro/images/file/vapufakekanepixome.pdfIn PDF document text
- https://alnahamgroup.com/userfiles/file/zewawika.pdfIn PDF document text
- https://jajugroup.com/ckfinder/userfiles/files/83303451912.pdfIn PDF document text
- https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/k31ikmmffuluhkcve0fhpel9a5/gupopagunububadumutomibi.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_off0000d96c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD96C | 11192 bytes |
SHA-256: a30488b2a117c881a1657e44cdda2dff1b49aec1c0f457e37bdc0606edd751eb |
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font_01_sfnt_off0000f32e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF32E | 18124 bytes |
SHA-256: 9c56e62b864d110716e71161150c38b880e744b7df5faac7ec983dde5fde8023 |
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font_02_sfnt_off0001224f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1224F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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