MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF is identified as a phishing lure due to its image-only nature and the presence of an action trigger. It contains numerous embedded URLs, many pointing to potentially disposable domains, suggesting a link farm or redirection mechanism. The ClamAV detection and ML classifier strongly indicate malicious intent, likely to redirect users to a malicious site for credential harvesting or further payload delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9954
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 http://zhizhencn.com/filespath/files/20210916221021.pdf In PDF document text
- http://drentmedischadvies.nl/uploads/files/77310406172.pdfIn PDF document text
- http://artospace.com/pics/file/69872864763.pdfIn PDF document text
- http://arkystudio.eu/userfiles/files/selugugo.pdfIn PDF document text
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/16130ffc39ed7f---74764474769.pdfIn PDF document text
- http://jacsonsfurniture.com/userfiles/file/47297668488.pdfIn PDF document text
- http://entryexpress.online/chapter_images/files/lajasazutej.pdfIn PDF document text
- http://asbu.net/uploads/FCK_files/file/tuzuk.pdfIn PDF document text
- http://no1sushinroll.com/uploads/files/widiga.pdfIn PDF document text
- http://radio6deenero.com/uploaded/files/tewokemolunigiv.pdfIn PDF document text
- http://studioarchperissinotto.eu/userfiles/files/xuxagusokitodon.pdfIn PDF document text
- https://homestayhoian.vn/uploads/image/files/34777852866.pdfIn PDF document text
- https://nichebearing.leaddeehub.com/userfiles/files/30927202246.pdfIn PDF document text
- http://szerecsen.hu/editor_up/zetulisodimu.pdfIn PDF document text
- http://hk-sai.com/ckfinder/userfiles/files/zanilurogikusatataluv.pdfIn PDF document text
- http://www.look4job.gr/images/_user_na/file/29358709714.pdfIn PDF document text
- https://get-insurance.in/ckfinder/userfiles/files/31714794942.pdfIn PDF document text
- http://pololanna.com/user_img/files/46339288720.pdfIn PDF document text
- http://tvoirostov.ru/ckfinder/userfiles/files/24606835213.pdfIn PDF document text
- https://binarbaidrealestate.com/public_html/userfiles/file/51613349033.pdfIn PDF document text
- http://lnshiyue.com/userfiles/file/20210914005619_462062568.pdfIn PDF document text
- https://bbu.vn/Images_upload/files/33807309219.pdfIn PDF document text
- https://singlespeed-switzerland.ch/userfiles/files/tixotagetudabi.pdfIn PDF document text
- http://parzenica-bialka.pl/userfiles/files/xuzasudoza.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=i+will+teach+you+to+be+rich+pdf+free+downloadPDF 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_off0000af0a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF0A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c721.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC721 | 10940 bytes |
SHA-256: 25e6b5247d4152e6b6e00a69f198ac0c840ffa606b2793c0ae0b6a316f9add64 |
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font_02_sfnt_off0000e038.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE038 | 13992 bytes |
SHA-256: fd850916243d9f0eef1803268c13cbc2954a4e5d3d26a86b93824adc5cd4986b |
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