MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It functions as a link farm, containing numerous URLs pointing to external sites, many of which are hosted on compromised or disposable domains. The presence of 'utm_term' parameters in some URLs suggests an attempt to track user interactions, common in phishing campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://chcial.ru/uplcv?utm_term=me+before+you+book+download PDF link annotation
- https://turismopontevedra.com/ckfinder/userfiles/files/76629791210.pdfIn PDF document text
- http://elisa5888.com/shopadmin/upload/files/xesufaluv.pdfIn PDF document text
- https://servicio-mexico.com/images/file/wumugodamepanisepidaluj.pdfIn PDF document text
- http://happy-land.hu/editor_up/22603244144.pdfIn PDF document text
- http://www.chiringuitomediterraneo.com/ckfinder/userfiles/files/vudikolavixonaveta.pdfIn PDF document text
- https://ltes.tw-goods.com/UserFiles/files/webopelesovob.pdfIn PDF document text
- http://riggi.ru/userfiles/file/tifofuzul.pdfIn PDF document text
- https://www.mnogotrop.com/ckfinder/userfiles/files/zuxavir.pdfIn PDF document text
- http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/16142cf7816b56---81506884411.pdfIn PDF document text
- https://ldoris.com/upfile/files/20210909190821.pdfIn PDF document text
- http://synerfreight.com/syner_upload/images/files/36717849584.pdfIn PDF document text
- http://stphilomenaonline.org/userfiles/file/82313845167.pdfIn PDF document text
- http://rund-sro.cz/UserFiles/File/33231536912.pdfIn PDF document text
- http://rowadhr.com/app/webroot/upload/files/borulerigepun.pdfIn PDF document text
- https://fotografski-studio.kost.si/userfiles/file/kexagavatozobu.pdfIn PDF document text
- https://wintechindia.in/ckfinder/userfiles/files/22085647435.pdfIn PDF document text
- http://ylphs.com/ckfinder/userfiles/files/gubisekaw.pdfIn PDF document text
- https://popa.com.br/wp-content/plugins/super-forms/uploads/php/files/8e6dfe2ead624ccf036d3ae57e1873ff/zitepavopajez.pdfIn PDF document text
- http://www.novosib-sport.ru/ckfinder/userfiles/files/tebebiwupazade.pdfIn PDF document text
- http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161443fd1bdd3a---97623020732.pdfIn PDF document text
- https://nidi.mk/ckfinder/userfiles/files/zujujalibisa.pdfIn PDF document text
- https://www.bmo-agencement.fr/ckfinder/userfiles/files/sugipefuvuravi.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_off0000c55d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC55D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000dd6f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD6F | 17480 bytes |
SHA-256: 7613e79db8240fdca65dde8c6d1c3d6b155052c21018a9fbd4950e42af7b6cd4 |
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font_02_sfnt_off00010a08.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A08 | 10516 bytes |
SHA-256: 133b02673e02fd5023b440d12d9a100d2aee9d3f9c8b2b8e7d7cc19fdf362ac5 |
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