MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF exhibits characteristics of a phishing lure, including being image-heavy with minimal text and containing numerous external links. Heuristics like PDF_IMAGE_LURE and PDF_SEO_DISPOSABLE_LINK_FARM strongly suggest this. The ML classifier and ClamAV detection further confirm its malicious nature, likely leading to the download or redirection to malicious content.
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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Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LUREPDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 68 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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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://archism.ru/uplcv?utm_term=flash+samsung+firmware PDF link annotation
- https://istanbulbalbir.com/upload/ckfinder/files/bifawawesuvokep.pdfIn PDF document text
- http://stomerijindex.nl/images/uploads/55747878150.pdfIn PDF document text
- https://viessmannboilers.ca/fck_upload/file/21054359126.pdfIn PDF document text
- http://studiotipaldo.com/userfiles/files/33665010600.pdfIn PDF document text
- http://olympiad-bigben.ru/ckfinder/userfiles/files/65937834045.pdfIn PDF document text
- http://mientaytourist.com/uploads/files/tuxajelipeledewojirumigo.pdfIn PDF document text
- https://bagstyle.uz/images/file/80288387740.pdfIn PDF document text
- https://krantiservice.com/ckfinder/userfiles/files/90565558222.pdfIn PDF document text
- http://woori-tour.kr/FileData/ckfinder/files/20210914_0937DBB9CF2B9190.pdfIn PDF document text
- http://lotuscourtpune.com/wp-content/plugins/super-forms/uploads/php/files/364f0e0f5f7bfa4b2403c9fb29c9fa58/57542526202.pdfIn PDF document text
- http://greatwalledmond.com/ckfinder/userfiles/files/80122361865.pdfIn PDF document text
- http://kccmaul.com/files/files/pigedogewuguguwezatoboda.pdfIn PDF document text
- http://e-district.org/userfiles/file/bukobip.pdfIn PDF document text
- https://llbyggodesign.se/UserFiles/files/bufesogikukusovipunoki.pdfIn PDF document text
- https://acavacecio.it/userfiles/files/xavuramiji.pdfIn PDF document text
- http://lesmashclub.com/imgUpload/files/1655374261.pdfIn PDF document text
- http://gz-theoutfit.com/UploadFiles/FCKeditor/20210906141701.pdfIn PDF document text
- http://alda.pl/ckfinder/userfiles/files/15397845386.pdfIn PDF document text
- https://fminterativa.net/cms/plugins/ckfinder/userfiles/files/voratofojifuzeluk.pdfIn PDF document text
- https://liftsystems.ro/LiftFiles/file/69726106629.pdfIn PDF document text
- http://silver1979.com/upload/file/baxixor.pdfIn PDF document text
- https://angel-juicer.com/FileData/ckfinder/files/20210908_4407E33F2C718352.pdfIn PDF document text
- https://myphambambi.com/webroot/img/files/zonufopol.pdfIn PDF document text
- http://lafenicealcamo.it/userfiles/files/losuzipoxado.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_off0000b1ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB1CA | 14060 bytes |
SHA-256: a19da271f28c7525a1eb3f78e2a1eda7221e17bcbb6b551a516db866c741c8fe |
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font_01_sfnt_off0000d475.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD475 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ec8c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC8C | 10608 bytes |
SHA-256: daed34da25584e56a95f9a40032c9af192e7d3dd6144975bc41339bc7ab96354 |
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