MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains numerous embedded URLs that point to compromised CMS uploads and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of these links and the overall structure strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9905
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://smidgel.ru/uplcv?utm_term=mechanical+product+design+and+development+pdf PDF link annotation
- http://altaprecision.com/userfiles/file/29924079943.pdfIn PDF document text
- https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/bd17a4967b8f2cd8f6735ac1384364bc/1088286317.pdfIn PDF document text
- http://xn--80age2amlc.xn--80adxhks/pics/images/file/xijajafeno.pdfIn PDF document text
- http://iziusb.com/userfiles//file/rabadijekamet.pdfIn PDF document text
- https://itexpertdog.com/upload/files/weseboriji.pdfIn PDF document text
- https://aksusu.com/upload/files/zobamuzifa.pdfIn PDF document text
- http://werder-ritter.de/UserFiles/File/8653667987.pdfIn PDF document text
- http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4ca43ba0f4---mubepomidakilesok.pdfIn PDF document text
- https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a3fa7625a21---rurizupejeduvomawokituvu.pdfIn PDF document text
- https://alianzatours.com/imagenes/file/56263856.pdfIn PDF document text
- https://easy2ticket.com/upload/files/xeposepupasojifok.pdfIn PDF document text
- https://www.harasportcenter.com/wp-content/plugins/super-forms/uploads/php/files/anv6d2jad1uaa87i6s9ncplf2d/52077470241.pdfIn PDF document text
- https://vhcvietnam.vn/ckeditor/images/files/zipejefejikemabo.pdfIn PDF document text
- https://warungmimpishio.com/contents/files/dejagajijisosi.pdfIn PDF document text
- http://interface-referencement.com/userfiles/file/xiwazijojasijibukotud.pdfIn PDF document text
- http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/2c869ad0797b4875250b5d185610f32f/44668445845.pdfIn PDF document text
- http://farmina.ru/uploads/files/47103090479.pdfIn PDF document text
- http://ccforum.kr/uploads/file/1622464014.pdfIn PDF document text
- http://azs-szermierka.pl/zdjecia/fck/file/62396595550.pdfIn PDF document text
- https://bibliothequedesarts.ch/ckfinder/userfiles/files/41233387797.pdfIn PDF document text
- https://terminal.hr/userfiles/file/tevuletetevev.pdfIn PDF document text
- https://art4you.sk/editor_uploads/system/files/12596942071.pdfIn PDF document text
- https://panama4d.com/contents//files/81265595268.pdfIn PDF document text
- http://tehnicgaz.eu/files/file/gerigizifeti.pdfIn PDF document text
- https://boldvision.tv/wp-content/plugins/formcraft/file-upload/server/content/files/160ae433502414---paberijifego.pdfIn PDF document text
- http://all4pets.cz/ckfinder/userfiles/files/77644039129.pdfIn PDF document text
- http://woorymart.com/userData/board/file/xudukukuwekigulovu.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_off0000e927.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE927 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010139.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10139 | 16648 bytes |
SHA-256: 0f48e1ccc960c067bdc947124eb1d31295b180189693cd7604b70db778a470e4 |
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font_02_sfnt_off00012bdc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12BDC | 11224 bytes |
SHA-256: b54097b1e5e0e181d35479d32498235ff9cf8a24880980e8f8573d443326755a |
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