MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many of which are hosted on compromised CMS platforms or appear to be part of a link farm, suggesting a phishing or malware distribution scheme. The PDF structure and embedded links are consistent with attempts to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9935
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 https://wastran.ru/uplcv?utm_term=in+instagram+followers+free PDF link annotation
- https://advik.net/userfiles/file/77279463403.pdfIn PDF document text
- http://zatacorp.com/upload/files/palofun.pdfIn PDF document text
- https://optimumquestsolutions.com/ckfinder/userfiles/files/regadamedemulibumite.pdfIn PDF document text
- http://cobe-ing.it/userfiles/files/93335715741.pdfIn PDF document text
- http://xn--80aaeiengkwpz6p.xn--p1ai/pub/file/16081414981.pdfIn PDF document text
- https://torbay.ru/images/uploads/file/zosuziz.pdfIn PDF document text
- http://wintec-samu.hu/uploads/files/pakogova.pdfIn PDF document text
- https://aquaprosmart.com/userfiles/files/dudirudube.pdfIn PDF document text
- https://hostsolutions.ro/app/webroot/files/userfiles/files/nukimok.pdfIn PDF document text
- https://granitnet.hu/editor_up/jugidaf.pdfIn PDF document text
- http://imhyuk.com/imhyukeditor/userfile/file/14199993273.pdfIn PDF document text
- http://nebovsem.ru/app/webroot/files/files/lepubejidig.pdfIn PDF document text
- https://kcss.hu/korosi/userfiles/file/75477252152.pdfIn PDF document text
- http://entone.es/wp-content/plugins/super-forms/uploads/php/files/2f565ea504dc3fbf04fe383bc9c464c7/jexasilif.pdfIn PDF document text
- http://chia4kids.ru/ckfinder/userfiles/files/24607793464.pdfIn PDF document text
- http://melabo.com/upload/files/60354113238.pdfIn PDF document text
- http://yh-nutri.com/filespath/files/20210901122544.pdfIn PDF document text
- https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/4d8d8ac8de89e7fd506f07c1a1b790fd/62662606145.pdfIn PDF document text
- https://lightupalife.org.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16138f9bd07177---wakawisajabesegujuriwe.pdfIn PDF document text
- https://www.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/3gbbb421o79s6u2t429g4b9qo1/jamofedazebinam.pdfIn PDF document text
- http://chemicalengineers.ie/images/pexofuve.pdfIn PDF document text
- http://herningbadintra.dk/app/webroot/upload/files/5079982581.pdfIn PDF document text
- http://sakaryakasaplarodasi.org/userfiles/file/pajusejuwinivadesixono.pdfIn PDF document text
- https://shiokuda2.com/contents/files/48219229892.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_off00010cf7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CF7 | 19000 bytes |
SHA-256: cf77655089d44e0d6db2d66e6c049704d7f7d5fa1ac520970c90f0b6465c195d |
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font_01_sfnt_off00013dcf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13DCF | 10596 bytes |
SHA-256: bfe13e23056b98c0c3d18fa529dfeaea4e3bf48dc9aa9ba0c73ead5a08e5c548 |
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font_02_sfnt_off00015610.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15610 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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