MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links pointing to external websites, many of which are hosted on compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious or phishing sites. The presence of embedded URLs and the overall structure strongly suggest a phishing or credential harvesting campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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 https://infrive.ru/uplcv?utm_term=flutter+java+11 PDF link annotation
- http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612edc8b8e4ff---fanibefufibemirinopozuxog.pdfIn PDF document text
- https://fundacjaartfreeart.pl/userfiles/file/xawenosuzo.pdfIn PDF document text
- https://alyosserspneed.com/userfiles/files/sekubigisonijefaruwen.pdfIn PDF document text
- http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16135871a48a58---titalagosi.pdfIn PDF document text
- https://aslplastic.com/ckfinder/userfiles/files/buralala.pdfIn PDF document text
- https://silverstonedevelopments.com/ckfinder/userfiles/files/44005838395.pdfIn PDF document text
- https://karlholmbygg.se/UserFiles/files/20605370018.pdfIn PDF document text
- http://cesnek-vysocina.cz/UserFiles/File/xojiwi.pdfIn PDF document text
- http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613093ae92b4f---tiwazizufexebopes.pdfIn PDF document text
- http://thietbimaugiao.vn/Images_upload/files/67146195758.pdfIn PDF document text
- http://vekosgroup.ru/userfiles/file/8894301599.pdfIn PDF document text
- http://schule.havonix.com/ckfinder/userfiles/files/831695538.pdfIn PDF document text
- http://wisdomtours.net/upload/file/63978167295.pdfIn PDF document text
- http://suarezbeltran.com/aym_images/files/60494159320.pdfIn PDF document text
- https://infoenergie-loire.org/userfiles/file/jizekikotopuwepaborixa.pdfIn PDF document text
- http://dylogistics.com/userData/board/file/20732813505.pdfIn PDF document text
- https://penal-garazh.ru/files/mazukabidu.pdfIn PDF document text
- http://alrabbancapital.com/file/files/43278632635.pdfIn PDF document text
- https://thic.net/plugin/ce1/ckfinder/userfiles/files/xuwisiwanol.pdfIn PDF document text
- http://mega-gold.com/userfiles/files/39849155813.pdfIn PDF document text
- https://simorgh.it/uploads/file/jexudometejutuputapeg.pdfIn PDF document text
- https://cleaner.pl/userfiles/file/58506189916.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_off0000d574.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD574 | 18152 bytes |
SHA-256: ac97676712b1c2b70e0b6239118b05181084aaa1d5257d95ffd5762ef14aa313 |
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font_01_sfnt_off00010420.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10420 | 9944 bytes |
SHA-256: e8dba1d26a0add1b8aad07940e2f53cc6cc60d4db9577e68383f7be4f82b52df |
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font_02_sfnt_off00011a54.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A54 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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