MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to numerous external PDF files hosted on various domains. The primary URL, https://pistant.ru/uplcv?utm_term=free+grace+soteriology, suggests a potential SEO poisoning or traffic redirection scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
Heuristics 5
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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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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://pistant.ru/uplcv?utm_term=free+grace+soteriology PDF link annotation
- http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1613bb7ae4b8db---91108324623.pdfIn PDF document text
- http://amicalelaique-guyancourt.fr/ckfinder/userfiles/files/giwumuduvegiberezu.pdfIn PDF document text
- https://mamo-tato.ro/userfiles/file/63026198616.pdfIn PDF document text
- http://knowleangling.co.uk/ckfinder/userfiles/files/42835561510.pdfIn PDF document text
- http://tantrungnghia.vn/media/ftp/file/kaxukewilo.pdfIn PDF document text
- https://aradmissions.com/ci/userfiles/files/1130358986.pdfIn PDF document text
- http://friulanamarmi.it/images/file/70067942621.pdfIn PDF document text
- http://eamenfaraz.com/cache/fck_files/file/31329736210.pdfIn PDF document text
- https://cncunse.com/d/files/sikaduxes.pdfIn PDF document text
- http://tipsclubcr.com/campannas/file/66976890127.pdfIn PDF document text
- https://istanajp.net/contents/files/74878855473.pdfIn PDF document text
- http://whitedwarf.ru/public/images/ckfinder/files/87616848953.pdfIn PDF document text
- http://sparkpro.lv/content/file/17655505380.pdfIn PDF document text
- http://al-bandak.com/userfiles/file/rerogo.pdfIn PDF document text
- http://www.themixchange.com/userfiles/files/35706586808.pdfIn PDF document text
- http://klawiatury-foliowe.pl/_data/file/51386971856.pdfIn PDF document text
- http://aldobini.it/userfiles/files/lixumopikapofafij.pdfIn PDF document text
- http://dtpokebar.com/uploads/files/43740145604.pdfIn PDF document text
- http://pomodorolennep.de/gfx/userfiles/files/28502914442.pdfIn PDF document text
- https://izr.fr/files/66290044517.pdfIn PDF document text
- http://aqua4you.hu/userfiles/file/malazuxinowugotomuzul.pdfIn PDF document text
- http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613754ac1e288---74800976708.pdfIn PDF document text
- https://samarthanamparisara.org/apadmin/uploads/userfiles/files/12870237574.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_off0000beb0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBEB0 | 10392 bytes |
SHA-256: ef6f119d2d47b84f95ff2c2ddf2a95d4d7d0b60ae9c94a9bdffd92162d0d2668 |
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font_01_sfnt_off0000d658.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD658 | 18244 bytes |
SHA-256: e98a9caf352c3f0aaf5d6791863fd025731420ba6d02ed4adcf4282d48282241 |
|||
font_02_sfnt_off000104ce.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104CE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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