MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains numerous embedded URLs that function as a link farm, directing users to various external websites. Several of these URLs point to compromised WordPress installations or disposable hosting, indicating a potential phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly suggest malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
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://krisoc.ru/uplcv?utm_term=kalender+2019+mit+ferien+bw+pdf PDF link annotation
- http://archimax.ch/dynamic-images/cms/file/xelarubakirada.pdfIn PDF document text
- http://studiosimonepantaleo.it/userfiles/files/77568178168.pdfIn PDF document text
- http://precedent.by/_newsite/images_from_html_editor/file/tedatedutuvikikikaju.pdfIn PDF document text
- https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16098d9cf82852---xoxobanewokibex.pdfIn PDF document text
- https://irepairplus.nl/app/webroot/files/userfiles/files/25689303097.pdfIn PDF document text
- http://ghettaetamionarchitetti.it/userfiles/files/muwidagebanowalepigutan.pdfIn PDF document text
- https://lerong.vn/wp-content/plugins/super-forms/uploads/php/files/622b52ea32faa051fd6d6f8dafcf346e/95477681686.pdfIn PDF document text
- http://xn--rssx31a7tec6p.com/upload/userfiles/files/20210623025658.pdfIn PDF document text
- https://rosemonttherapy.health/wp-content/plugins/super-forms/uploads/php/files/ij3nfrrmeiiv2ashf2nejfqc4g/37788948824.pdfIn PDF document text
- http://uhy-th.com/image/upload/files/49862309156.pdfIn PDF document text
- https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/ac2f5bb5b3039fe923575997a25af68d/3144360732.pdfIn PDF document text
- http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/160b200df2c8c0---9034271267.pdfIn PDF document text
- http://bycongroup.com/UserFiles/file/47875173118.pdfIn PDF document text
- http://cachnhietcacham.vn/Images_upload/files/58786098648.pdfIn PDF document text
- http://nsdadventist.org/FCKData/file/panuwafir.pdfIn PDF document text
- http://infrabud.eu/fckpliki/file/sifazukiwe.pdfIn PDF document text
- http://xn--h1aaebajlcgx.xn--p1ai/sadm_files/piwexepuvuvu.pdfIn PDF document text
- http://www.caribbeandentist.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d1b4537e946---75502885109.pdfIn PDF document text
- http://coumert.com/images/file/59503625845.pdfIn PDF document text
- https://poojaindiangrill.com/nbloom/fckuploads/file/62801860998.pdfIn PDF document text
- http://bawaconstructions.com/editorData/file/xisalonikuv.pdfIn PDF document text
- https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/16127244727882---56916354271.pdfIn PDF document text
- http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607a8f34a4345---kitegupezekuvilodof.pdfIn PDF document text
- http://tongchangkj.com/uploadfile/file///2021081717164758.pdfIn PDF document text
- http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/9u6p111euvt30tnjap08hcimr7/6134767558.pdfIn PDF document text
- https://kltccompany.com/ckfinder/userfiles/files/46884789896.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_off0000d547.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD547 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ed59.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED59 | 18884 bytes |
SHA-256: 74fa7fb689366b4d8579b6bce73788a3724d7ce360b27857f87399b5ee0bda09 |
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font_02_sfnt_off00011cd3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CD3 | 11052 bytes |
SHA-256: f1b709a57382b8c1e71df0c6136f142091adb0ae740de15139468afe38fbee51 |
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