MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by a machine learning classifier and ClamAV as malicious, indicating a high likelihood of malicious intent. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic suggests it functions as a link farm, directing users to multiple distinct, potentially disposable hosting domains. While no scripts were extracted, the presence of numerous unknown URLs points to a distribution or phishing campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://vitalenzyme.com/uploads/fckupload/file/nudaketom.pdf In PDF document text
- http://gardenofsound.com/userfiles/files/mulijowofezejog.pdfIn PDF document text
- https://bongkartuantakur.com/contents/files/kofolanavujosowu.pdfIn PDF document text
- http://diskacme.dk/images/upload/file/xudebaxegixirojofezoboke.pdfIn PDF document text
- http://jar-ted.pl/file/10563965437.pdfIn PDF document text
- http://reszke.pl/fckeditor/editor/filemanager/connectors/php/file/46378775602.pdfIn PDF document text
- http://chataigne-cevennes.fr/imgs/files/65553323315.pdfIn PDF document text
- http://www.gamylai.vn/uploads/files/80911539741.pdfIn PDF document text
- https://www.hs-hofgastein.salzburg.at/ckfinder/userfiles/files/13268015384.pdfIn PDF document text
- http://kwong-cheong.com/userfiles/2630103382.pdfIn PDF document text
- http://aytekinpolatel.com/image/files/fubijitizojatuxurikamede.pdfIn PDF document text
- http://izhar-energy.com/userfiles/file/11854952890.pdfIn PDF document text
- http://nhuaduongnhapkhauaz.org/upload/files/pitoledo.pdfIn PDF document text
- https://lexconsulting.ro/webroot/files/media/1712185938.pdfIn PDF document text
- http://sk-uralstroy.ru/uploads/files/37765690307.pdfIn PDF document text
- http://kassa.pl/userfiles/file/rubaduxugenafigol.pdfIn PDF document text
- https://docommerce.co/calisma2/files/uploads/38257867396.pdfIn PDF document text
- https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616137a581566---51671499646.pdfIn PDF document text
- http://dinskayarealty.ru/media/file/5206619803.pdfIn PDF document text
- http://erisalaw-chicago.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/vejopamewumovodemer.pdfIn PDF document text
- https://angkagenap.com/contents/files/35496959768.pdfIn PDF document text
- https://vzglavniki.net/data/file/bijut.pdfIn PDF document text
- https://aukshanya.promosing.com/alpha/ckfinder/userfiles/files/89650952985.pdfIn PDF document text
- http://evo-models.com/uploads/userfiles/files/kiwatena.pdfIn PDF document text
- http://feedproxy.google.com/~r/Xvkpad/~3/896FEnmJZlk/uplcv?utm_term=question+answer+of+photosynthesis+in+higher+plantsPDF 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_off0000e34a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE34A | 18152 bytes |
SHA-256: 34ac19841575e58759917d8fda51ca8a98845eb09583ffa725e3d0aaa6911f63 |
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font_01_sfnt_off00011290.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11290 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012aa7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12AA7 | 10996 bytes |
SHA-256: caf997e0b8d737df337d37cf768a6a710ce9249970d798b77c1af13e60a59b4a |
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