MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to compromised CMS uploads and disposable hosting, suggesting a phishing or malware distribution lure. The embedded URLs, while numerous, do not appear to directly host payloads but rather redirect to potentially malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://dhf-china.com/d/files/tuvewirik.pdf In PDF document text
- http://daugiavanthienphuoc.com/media/ftp/file/xusujusuv.pdfIn PDF document text
- http://xfswchem.com/upload/files/54066600458.pdfIn PDF document text
- https://shevian.com/images/file/11410415979.pdfIn PDF document text
- https://www.popcaffe.it/wp-content/plugins/super-forms/uploads/php/files/0a1817371180459a2868a12e79d8e0c4/91540708802.pdfIn PDF document text
- https://www.serwkom.pl/plugins/ckfinder/userfiles/files/42242946431.pdfIn PDF document text
- https://trisyscom.com/userfiles/file/musevuzifenuruw.pdfIn PDF document text
- http://vouchertiket.com/airplane/ckeditor/uploads/files/lizin.pdfIn PDF document text
- https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/87ec8a38bcc2bdbfc5194e2af70fdba3/6607760491.pdfIn PDF document text
- http://gapp.fr/medias/files/19186679049.pdfIn PDF document text
- http://bckbytow.naszbip.pl/img/upload/files/makovuxodonelefudeneme.pdfIn PDF document text
- http://murielbellhomes.com/userfiles/files/42116574895.pdfIn PDF document text
- https://portalbime.com/UploadedFiles/New/file/25278945581.pdfIn PDF document text
- http://www.ibadirect.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142dbc8cda50---wagijapivosobuwatitukip.pdfIn PDF document text
- http://style4.allwebeasy.com/userfiles/files/85411703392.pdfIn PDF document text
- https://konzolstudio.ro/uploaded_files/file/pijemogegudevenoji.pdfIn PDF document text
- http://hajnysport.cz/FCK_userfiles/file/66776313572.pdfIn PDF document text
- http://cjmfgx.morefriendship.com/upload/files/94833585902.pdfIn PDF document text
- http://fitviewer.biz/files/file/futamebaz.pdfIn PDF document text
- http://karate-talence.com/newsite/userfiles/files/76325341808.pdfIn PDF document text
- http://venkateshservices.com/uploads/pijeg.pdfIn PDF document text
- http://corkpotters.com/images/xewanufubujorexijibabe.pdfIn PDF document text
- http://codienlanhtrangia.com/Images_upload/files/74250220195.pdfIn PDF document text
- https://theloneranger.tv/clients/loneranger/ckfinder/userfiles/files/4862543758.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=iphone+ki+ringtone+audioPDF 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_off0000b568.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB568 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cd7a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD7A | 16748 bytes |
SHA-256: 278b290b7b3e5bb64211cee85bc64f7bcc5ce1c48cf64b26028482f9eeabd278 |
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font_02_sfnt_off0000f7ee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7EE | 10600 bytes |
SHA-256: dc97804b6fd74171d3726deb803b0e65527be4a74271e05df477ccee54754e29 |
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