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 ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, suggesting a link farm or phishing lure. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' reinforces this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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://cructi.ru/uplcv?utm_term=effect+of+unemployment+in+malaysia+pdf
- http://yournamebadges.com/withyourdog/cms_uploads/file/39914259602.pdf
- http://alemotta.com/resources/original/file/5818097812.pdf
- http://gymostrov.org/gymostrov/userfiles/file/vunosib.pdf
- http://surausa.com/uploads/files/14645604434.pdf
- https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba65dd37d3c---ninubajozumez.pdf
- http://spc1962reunion.com/clients/c/c5/c535eb5d361035e84cedf1152ec4da8f/File/82595878121.pdf
- https://bursac.net/userfiles/file/21969245605.pdf
- https://coatielectronica.com/files/vumanasewobofabofadag.pdf
- http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083ca86ea8dc---potegutizidet.pdf
- https://tucsonhomewindowtint.com/wp-content/plugins/super-forms/uploads/php/files/4735fbf90063f215e762d8b3d98c40fd/18883281236.pdf
- http://autodilykanka.cz/cmsimple/images/file/fewokaguratiwexelilaj.pdf
- http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d271ecd6b5---juvibufi.pdf
- https://mmszke.hu/files/file/15993868709.pdf
- http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098add4bfd11---kizetevexixifowalij.pdf
- https://acronimocostanzo.com/userfiles/file/1786446925.pdf
- http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a41898a9b5a---76505528758.pdf
- http://viewcs.com/partner/upload/dextfile/95846649335.pdf
- http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160e3392738612---gedana.pdf
- http://lbs.ac.at/wp-content/plugins/super-forms/uploads/php/files/bhouiagu1g9rsomumaotqv1c5d/fofunalijusumomojeku.pdf
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160ac1391e7f72---27070427855.pdf
- https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608778cfdd04e---misufegati.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e25b.bin27477cb1440a3f89f78f7ebf47e3d8ad4fa6f060a014abc2c206a1b9490d185c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE25B | 16928 bytes |
font_01_sfnt_off00010e74.bin0f2656cf6517a98eda01922ef3bb2dcf95abfd84dc0e6e080b591d3d94dfbea6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E74 | 10880 bytes |
font_02_sfnt_off0001279a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1279A | 16792 bytes |
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