MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The file contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM heuristics indicates a strong intent to lure users through deceptive links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://laborke.ru/uplcv?utm_term=worm+zone+online+play PDF link annotation
- https://meesens.be/KrMee/Tekstverwerker/lepuza.pdfIn PDF document text
- http://crm333.com/documentos/file/18233561792.pdfIn PDF document text
- http://litho-and-co.fr/ckeditor/upload/files/42001581211.pdfIn PDF document text
- http://www.radanhorse.com/resource/files/55012027680.pdfIn PDF document text
- http://rejs2013.cycling-recycling.eu/imgturysta/files/47034107836.pdfIn PDF document text
- http://www.cbs-emballages.com/upload/file/sojuzowureka.pdfIn PDF document text
- http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1612f9cc8550a6---guteredesovebuvigexozofe.pdfIn PDF document text
- https://www.wappa.com.au/siteadmin/ckfinder/userfiles/files/57265272538.pdfIn PDF document text
- http://ccshecea.org/upload/files/79626933807.pdfIn PDF document text
- https://kalyna.ua/sites/default/files/userfiles/file/94732916872.pdfIn PDF document text
- https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/54e59cc4b69accf4f6dcd92a2a224b9f/42793623511.pdfIn PDF document text
- http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/161327c000bb57---46049742954.pdfIn PDF document text
- http://wonderful-foods.net/userfiles/file/jolazusokuxudulobiposani.pdfIn PDF document text
- https://robertbah.si/files/file/70591066563.pdfIn PDF document text
- http://gruppocaminiti.it/userfiles/files/xejudukalotobiwi.pdfIn PDF document text
- http://a2itsolutions.com/chop/multimedia/userfiles/file/zilutavuravasuvugelilo.pdfIn PDF document text
- http://phannhan.vn/files/usersfiles/files/60894849964.pdfIn PDF document text
- http://mizuho-co.net/file/ck/files/54520365839.pdfIn PDF document text
- https://jamisonfurnace.ca/userfiles/files/gapev.pdfIn PDF document text
- http://clinicaveterinariamontecchia.com/userfiles/files/xupifemawojidarigamap.pdfIn PDF document text
- http://op-gold.com/ck_image/files/nojoponiwuvitiji.pdfIn PDF document text
- http://anm-av.de/uploads/files/nagerazexij.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_off0000d31b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD31B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000eb2d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB2D | 18032 bytes |
SHA-256: 6b63606aa76ec530300b9264b08a34f6500a96190178dde7b89a6e4aaa859c51 |
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font_02_sfnt_off00011991.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11991 | 10316 bytes |
SHA-256: a8f2d552771b2fa2d18964d7b8f801da86c2b24cc1d0c746a76ad5037a07fcef |
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