MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous embedded URLs pointing to various domains, many of which appear to be part of a link farm designed to obscure the ultimate destination. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and the presence of URLs with 'utm_term' parameters suggest a phishing or malware distribution attempt. The ClamAV detection and ML classifier further support its malicious nature, likely as a phishing lure for downloading further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://crewmak.ru/uplcv?utm_term=du+recorder+premium+download PDF link annotation
- http://okun.su/upload/file/68408916558.pdfIn PDF document text
- http://sandlnae.com/data/editor/file/58899668602.pdfIn PDF document text
- http://kleinschaden.expert/userfiles/file/82447084866.pdfIn PDF document text
- http://xfswchem.com/upload/files/xemesada.pdfIn PDF document text
- https://www.willmarshelter.com/ckfinder/userfiles/files/kelew.pdfIn PDF document text
- http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16132610eba4c4---zifetagisoro.pdfIn PDF document text
- https://duvanco.be/docs/files/rufivobabesujimuzemone.pdfIn PDF document text
- http://sanarina.de/ckfinder/userfiles/files/muzefosazoveruwipetin.pdfIn PDF document text
- https://sua.vn/uploads/userfiles/file/20711282170.pdfIn PDF document text
- http://teormech.ru/teormech/usrimg/file/98687227189.pdfIn PDF document text
- http://www.radanhorse.com/resource/files/34466920468.pdfIn PDF document text
- http://medicare-darmstadt.de/bilder/UserImages/file/4580115760.pdfIn PDF document text
- http://www.rafaellucenaehijos.com/ckfinder/userfiles/files/97930062856.pdfIn PDF document text
- http://er-trans.com/img/produkty/files/23239899955.pdfIn PDF document text
- http://bong-dem-long.org/upload/editor/files/20061003159.pdfIn PDF document text
- https://jphotographyllc.com/userfiles/file/pesafas.pdfIn PDF document text
- https://gimenezricarte-deltabogados.com/ckfinder/userfiles/files/rakutad.pdfIn PDF document text
- https://adamslakeband.org/userfiles/file/vutozovijonekiso.pdfIn PDF document text
- http://xedaptheduc.net/app/webroot/uploads/files/35754946448.pdfIn PDF document text
- https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/1614f57c5ea74d---munajipimivunekugo.pdfIn PDF document text
- https://mithermomix.com.mx/wp-content/plugins/super-forms/uploads/php/files/f7d8900059c6f5372c7d363bbabc0f93/vuvumasavasagasipafunuvi.pdfIn PDF document text
- https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139b1a67d9fb---metevelogazux.pdfIn PDF document text
- http://thy-environment.com/userfiles/files/xufubipijisevog.pdfIn PDF document text
- http://owop.challengersports.com/ckfinder/userfiles/files/72351123026.pdfIn PDF document text
- http://chinazzjx.com/d/files/27992945555.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_off0000b4e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB4E3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ccf5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCCF5 | 16256 bytes |
SHA-256: 618c66d134bcd8086e2c7cf06c256556692c70c14340e7df9b7b053150ca30a4 |
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font_02_sfnt_off0000f5f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5F3 | 10596 bytes |
SHA-256: 1f213c68293d2ae8f8180e1371a64e097116c70cf6b33e5e82f9fe50b24e6ba3 |
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