MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised websites or are part of a link farm designed to obscure the final destination. The primary attack pattern involves luring users to click on these links, potentially leading to further compromise.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://chiangmai-esc.net/user_img/files/86435759858.pdf In PDF document text
- https://ozora.schaffsen.com/contents/file/najugodovog.pdfIn PDF document text
- http://sinostandards.net/upload/files/xezasuxenemoto.pdfIn PDF document text
- https://n95america.com/wp-content/plugins/super-forms/uploads/php/files/447bb1ef69586faa8448d2ae687be578/midabasetuwubavibolot.pdfIn PDF document text
- http://urduhadith.org/survey/userfiles/files/58522567800.pdfIn PDF document text
- http://sky1981.com/asset/uploads/files/ziwonofoxomafutal.pdfIn PDF document text
- http://www.tobywells.org/media/fckdir/file/14873155179.pdfIn PDF document text
- http://haustechnik-hagenauer.at/60532370687.pdfIn PDF document text
- http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613b325a0d673---92502334807.pdfIn PDF document text
- http://bangtaisay.com/uploads/userfiles/file/vokopamuxivinumi.pdfIn PDF document text
- http://bckvalumni.org/userfiles/file/93044008138.pdfIn PDF document text
- https://hiperaktivite.info/userfiles/files/20737374150.pdfIn PDF document text
- https://cosmetic.dilen.top/upload/files/tuxutisedatosivanit.pdfIn PDF document text
- http://acupunctuuryao.nl/ckfinder/userfiles/files/lopovasuzamudugipukax.pdfIn PDF document text
- http://lovepetclinics.com/file_media/file_image/file/78884840150.pdfIn PDF document text
- http://la-roofers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161315e2a33bc9---56640317154.pdfIn PDF document text
- https://organicearthfiji.com/documents/file/vojipale.pdfIn PDF document text
- http://thietbibepnhahang.net/media/files/87127990738.pdfIn PDF document text
- http://szsahsh.com/uploads/files/koxufatosibejovubalazanej.pdfIn PDF document text
- https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/338d08959dcadd8859fdc42ecaa3581f/1772402544.pdfIn PDF document text
- http://rc-saty.cz/gais/image/file/wituvex.pdfIn PDF document text
- http://mcutech.net/files/54760379769.pdfIn PDF document text
- https://dom4m.de/userfiles/files/33397721607.pdfIn PDF document text
- http://thepokeluau.com/uploads/files/wufelim.pdfIn PDF document text
- https://reitinguok.lt/userfiles/file/87452684773.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=ihd+with+pciPDF 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_off0000d4ed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4ED | 18136 bytes |
SHA-256: 03989ff0f9296afd3c125c136de1b7295f4ab8640424ca0921f7268a26de1025 |
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font_01_sfnt_off00010390.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10390 | 9816 bytes |
SHA-256: fa8aed0f48b84409991ae5d262e2ce59d7de4b50712019ea471bf27b0d29b678 |
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font_02_sfnt_off0001193a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1193A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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