MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, directing users to multiple external websites, some hosted on compromised CMS platforms. The embedded URLs suggest a phishing or malware distribution campaign, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://allytemp.ru/uplcv?utm_term=text+picture+apps+for+android PDF link annotation
- http://1000projects.ru/upload_picture/file/90465856286.pdfIn PDF document text
- http://drivingschool-brno.eu/files/xixavafitokisuwez.pdfIn PDF document text
- http://xahscw.com/userfiles/file/dirusokagujijekoribigap.pdfIn PDF document text
- http://fitviewer.com/files/file/20130558426.pdfIn PDF document text
- http://elhammagazine.com/ckfinder/userfiles/files/xodigezifofuxufuz.pdfIn PDF document text
- http://novosib-sport.ru/ckfinder/userfiles/files/ribirumoxoketete.pdfIn PDF document text
- http://recuva.kr/upload/fck_img/1631260819/file/75847049540.pdfIn PDF document text
- https://bem-sa.com/img/file/30032204121.pdfIn PDF document text
- http://allseasonsart.com/uploads/fck_uploads/file/mijomomovuwitulubuje.pdfIn PDF document text
- https://libertyrealestate.in/ckfinder/userfiles/files/33672449336.pdfIn PDF document text
- http://deaprogettazioni.it/userfiles/files/5454664155.pdfIn PDF document text
- http://xn--939a66v0zjo3bcvdmrp.com/data/ckfinder/files/24149774310.pdfIn PDF document text
- http://studiotecnicodama.it/userfiles/files/74584901300.pdfIn PDF document text
- http://sakirnoopo.ru/wp-content/plugins/super-forms/uploads/php/files/4567054d5da7d3d367d6e1b8a8b75e5e/41034219983.pdfIn PDF document text
- http://www.uc-kushiro.net/images/library/File/20238321471.pdfIn PDF document text
- https://mobiligennari.com/userfiles/file/robelorekedamaxuli.pdfIn PDF document text
- http://chuaphucluong.com/uploads/image/files/23383514637.pdfIn PDF document text
- http://sportingclubalbinia.eu/userfiles/files/55836123070.pdfIn PDF document text
- http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/1613509696667f---50823588713.pdfIn PDF document text
- http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/otlgbo0gsqmu4s42rcbipr8lk7/dalemebezixanakevudoweto.pdfIn PDF document text
- http://cs-golfclub.com/ckupload/files/tazezumuzatopusi.pdfIn PDF document text
- http://orthopediedelft.eu/files/24084997195.pdfIn PDF document text
- http://kythuatviet.vn/uploads/userfiles/file/pabadozapofugupese.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_off0000f1aa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1AA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000109c1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109C1 | 10732 bytes |
SHA-256: f9e2be0c89474f1787fed5230d35ccc9404b828ad0ac06657f492c6ada079236 |
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font_02_sfnt_off00012292.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12292 | 18096 bytes |
SHA-256: 4b8b42bc5f69c8c854d86cc0221544983909bd6838550e3c180744f48bc83c8a |
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