MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous URLs, many of which are part of a link farm hosted on disposable domains, suggesting an attempt to obscure the ultimate malicious destination. The presence of external URIs and the link farm heuristic indicate a strong likelihood of redirecting users to malicious content or downloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://irlanc.ru/uplcv?utm_term=mx+share+download+apk PDF link annotation
- https://un7un9b3rl1pa7-99.com/contents/files/26224348637.pdfIn PDF document text
- http://liveisagenix.com/ckfinder/userfiles/files/sutasesasuv.pdfIn PDF document text
- http://cascinamana.it/userfiles/file/2039424103.pdfIn PDF document text
- http://ceroki.com/image/files/63491468004.pdfIn PDF document text
- http://dpholding.ru/uploads/files/bipuzoterutojomes.pdfIn PDF document text
- http://paglialonga.it/userfiles/files/sidafujobapugavofafubor.pdfIn PDF document text
- http://younewstoday.com/task/userimages/file/82470379743.pdfIn PDF document text
- http://sklenicky-obchod.cz/web/admin/fckeditor/userfiles/file/52056342368.pdfIn PDF document text
- https://mikepromedia.com/wp-content/plugins/super-forms/uploads/php/files/f561a913f5757dfbd940ac225ba6b934/dedigodedidekosu.pdfIn PDF document text
- https://psychologgia.pl/Upload/file/47499596595.pdfIn PDF document text
- http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/os3okhjhp7mmibjccb5h66n5rr/kokuwusazosozudoxud.pdfIn PDF document text
- https://kimcert.org/E/file/44947117119.pdfIn PDF document text
- http://tolltisztitas.eu/userfiles/files/57209991881.pdfIn PDF document text
- http://v-lukomorie.com/uploader/files/jelibibirixinelumete.pdfIn PDF document text
- http://gniortho.com/files/Upload/file/73625560537.pdfIn PDF document text
- http://nguyenxuanhuong.com/upload/files/29052672537.pdfIn PDF document text
- http://federicozucchettiarchitetto.eu/userfiles/files/79682051256.pdfIn PDF document text
- http://zhongjiukeji.com/upload_fck/file/2021-9-13/20210913170547430520.pdfIn PDF document text
- http://bursaceyizgelinlik.com/images_upload/files/68773090299.pdfIn PDF document text
- http://m-s-g.ru/userfiles/files/mesufafemolusetemixi.pdfIn PDF document text
- http://cbstav.cz/file/98641297202.pdfIn PDF document text
- https://www.aifimm.it/admin/inc/ckfinder/userfiles/files/9374567292.pdfIn PDF document text
- http://bongoes62.dk/userfiles/file/1885280913.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_off0000e340.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE340 | 19160 bytes |
SHA-256: 075541fb44965dc2004df0698ca02d484bdc58b46eeb07ca6176f18a4ad35c9e |
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font_01_sfnt_off000114f2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x114F2 | 10572 bytes |
SHA-256: b33940ab3732a87eb2ccb1e77dadc993ed790b53653eac2ff931dea49b72da18 |
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font_02_sfnt_off00012d12.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D12 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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