MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of links, many of which point to compromised CMS upload directories or disposable hosting, indicating a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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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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://busanpc1.com/upload/fckeditor/file/3528289163.pdf
- http://kotolantopeni.cz/file/51147498049.pdf
- https://rajaunited.com/contents//files/duxasudunafajilideviw.pdf
- https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/160ac22114c062---38762184037.pdf
- https://cdmsig.com/ckfinder/userfiles/files/60456915823.pdf
- https://southtours.com/wp-content/plugins/super-forms/uploads/php/files/diu44asnpah1ouq3jnj3vsj78r/6005488728.pdf
- https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/e4809c901b63a5e3d6e1f1a6b75d8c92/87638318886.pdf
- https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/1607802996f472---vezenofaribonuzawifefivup.pdf
- http://turatabor.hu/media/xisarupolowukunepus.pdf
- http://mp-journal.com/media/file/wizijafi.pdf
- http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/160748c6b9faf3---780050377.pdf
- https://vestol.bg/files/file/4688544376.pdf
- http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091b58526969---widamegukujod.pdf
- http://gourmethousemacau.com/UploadFilesfile///18776319180.pdf
- http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/160931bec507b0---63988984771.pdf
- http://asianaccounting.com/admin/fckeditor/userfiles/file/57420346842.pdf
- http://vucert.vn/uploads/files/69568237053.pdf
- https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/466c023ab6ebf138ca967570dd909ea9/namesegapogafumubolol.pdf
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/1607d29c973e5f---vegirusinegufaxuximiga.pdf
- https://cornerstonelaw.eu/userfiles//file/94066956407.pdf
- http://beastyenergy.com/userfiles/file/87849916304.pdf
- https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/ada05745a2c947d52aa77202ebe6e732/31538921860.pdf
- https://asaptransfers.co.uk/wp-content/plugins/super-forms/uploads/php/files/rome55oqd0vmlgc41vuk71skg7/43270552303.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=reported+speech+with+conditional+sentences
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f23f.bin8687bf4d237698f8c4f0c0b34a2e461b5002a42499c0af30c06a62ddbb9625ef |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF23F | 18540 bytes |
font_01_sfnt_off0001220a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1220A | 16792 bytes |
font_02_sfnt_off00013a21.binc191ad80cc98fff540cefd0647bb0af46c181a73e87d07524f257350b307e692 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A21 | 10740 bytes |
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