MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs pointing to various domains, many of which appear to be part of a link farm designed to obscure the ultimate destination. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using small PDFs on disposable hosting to redirect users, suggesting a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
Heuristics 5
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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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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://wsystem.sk/userfiles/files/22014413239.pdf In PDF document text
- http://spc1991.com/ckfinder/userfiles/files/mepanozelajomowidisez.pdfIn PDF document text
- http://baozhaopharma.com/upload/files/47459138635.pdfIn PDF document text
- http://bodemveenweiden.nl/bodem-veenweiden-img/32920839641.pdfIn PDF document text
- http://rebornfair.com/FileData/ckfinder/files/20210918_BA69A9742E83AD10.pdfIn PDF document text
- http://seatraderhk.com/userfiles/49701990271.pdfIn PDF document text
- http://urbanposthotel.com/admin/ckfinder/userfiles/files/21209507860.pdfIn PDF document text
- http://ppogrimall.com/upload/editor_image/file/81552471358.pdfIn PDF document text
- http://www.peritaonline.es/ckfinder/userfiles/files/litekegesedobas.pdfIn PDF document text
- http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614e21a7974ee---wojep.pdfIn PDF document text
- https://jancsoalapitvany.hu/ckfinder/userfiles/files/70442398960.pdfIn PDF document text
- https://www.jnvhardoi.org/ckfinder/userfiles/files/8733524074.pdfIn PDF document text
- https://fertilizergranulatorprice.com/d/files/39440940275.pdfIn PDF document text
- https://lordoptika.hu/files/files/26636597845.pdfIn PDF document text
- http://tjjjsh.com/uploads/files/dofog.pdfIn PDF document text
- http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f707eabcba---68060933515.pdfIn PDF document text
- http://fishtech.org/uploads/userfiles/file/file/vilufogajiboke.pdfIn PDF document text
- http://luckysim.com/userfiles/file/36162616220.pdfIn PDF document text
- https://tahitotfaluovodak.hu/ckfinder/userfiles/files/sinokafivobavizefam.pdfIn PDF document text
- http://studiomontironi.eu/userfiles/files/15932953377.pdfIn PDF document text
- http://akademia-jedenastka.pl/zdjecia/fck/file/voboberanefosutomegu.pdfIn PDF document text
- http://humidorio.de/ckfinder/userfiles/files/dumojoxiwo.pdfIn PDF document text
- http://larben.cz/media/images/upload/file/69454543086.pdfIn PDF document text
- https://chetanaus.org/bheru/uploadfiles/file/fudegoneruwek.pdfIn PDF document text
- http://tiwtactic.com/userfiles/files/nezomirefefi.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=how+to+create+a+background+service+in+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_off0000b05a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB05A | 14888 bytes |
SHA-256: 0d1dd3b848eb0f5cfa068dab3bf08129ae806d03bc8ce3bf52eb10138494620f |
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font_01_sfnt_off0000d594.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD594 | 10972 bytes |
SHA-256: 8a0d844c3f9e4c79f1c099442c750ac19e9010d1e75ce75c5bace7c8a1d9248a |
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font_02_sfnt_off0000ef05.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF05 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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