MALICIOUS
166
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 a small file size and an image-only presentation suggesting a screenshot. Heuristics indicate a malformed exploit stream and a link farm structure, pointing towards malicious intent. The embedded URLs, while numerous, are likely part of a campaign to redirect users to malicious sites for credential harvesting or further payload delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
Heuristics 7
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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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Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTHA PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
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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 http://keitbg.com/images/files/dulidadi.pdf In PDF document text
- http://mispuntossaga.com/campannas/file/fosunarixem.pdfIn PDF document text
- http://fullx.net/files/50298494597.pdfIn PDF document text
- https://pamukoglu.com/userfiles/file/66987222430.pdfIn PDF document text
- http://abwmarlboropike.com/uploads/files/3091968000.pdfIn PDF document text
- https://mdteam.se/ckfinder/userfiles/files/68342458910.pdfIn PDF document text
- http://guowangcable.com/d/files/vuvatebewozirizosaz.pdfIn PDF document text
- https://tomorrowhubs.com/upload/users/files/favonubelu.pdfIn PDF document text
- https://akonis.ch/userfiles/files/16268762276.pdfIn PDF document text
- http://lube-stc.com/ckfinder/userfiles/files/83965329620.pdfIn PDF document text
- https://mgc.to/sites/web/upload/files/mepativodajozegib.pdfIn PDF document text
- http://ellenia3.eu/userfiles/files/sevagoxexotoro.pdfIn PDF document text
- http://myphamvickwhitebeck.vn/luutru/files/64700035535.pdfIn PDF document text
- http://rooptex.com/uploads/26638522391.pdfIn PDF document text
- http://dreesmann-foto.de/userfiles/file/18078920806.pdfIn PDF document text
- https://elicopter-de-inchiriat.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16138fd4fce340---pefoxikirenonaregumu.pdfIn PDF document text
- http://riskhedgetech.com/uploaded/file/235759287613c868d731c1.pdfIn PDF document text
- https://whitesal.com/data/images/file/2289_20210908143722.pdfIn PDF document text
- https://eetravel.net/file/23611820391.pdfIn PDF document text
- https://dm288.rs/slicice/file/gorupuxejut.pdfIn PDF document text
- http://babyshelter.net/assets/upload/files/39159923817.pdfIn PDF document text
- http://mijn-nederland.nl/userfiles/file/24386531283.pdfIn PDF document text
- https://naves.cz/res/file/vipevewebezip.pdfIn PDF document text
- https://markmont.eu/editor_uploads/system/files/54005995593.pdfIn PDF document text
- http://starfishdowney.com/uploads/files/89655952543.pdfIn PDF document text
- http://factorycontrolprojects.com/userfiles/file/34842299130.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=como+cambiar+de+iphone+a+androidPDF link annotation
- 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_off0000b0c5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB0C5 | 14028 bytes |
SHA-256: fbc4bc704e400228d8bc07f118907a648ffa7c95c3e0519e7e61e7d470ab203e |
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font_01_sfnt_off0000d343.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD343 | 10636 bytes |
SHA-256: da68182fd6d1f8892ee72148973294c691146afb6bcf20fd6b9b7745f62479af |
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font_02_sfnt_off0000eb27.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB27 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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