MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous links, many pointing to compromised WordPress sites or disposable domains, forming a link farm. The embedded document text, though obfuscated, suggests a lure related to "Techniques judo pdf". The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware distribution via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9781
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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PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILEDThe cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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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://ketchas.ru/uplcv?utm_term=techniques+judo+pdf PDF link annotation
- http://parvazyab.net/basefile/api203/files/mesasur.pdfIn PDF document text
- http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160aa3e93c06ab---dukevu.pdfIn PDF document text
- https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606d3bb282179---biminovoko.pdfIn PDF document text
- http://homespakistan.net/magzine/uploadfiles/file/kotizotubojajusupa.pdfIn PDF document text
- https://sakkestadbil.no/userfiles/file/83781614584.pdfIn PDF document text
- http://vankouwenenmastop.nl/UserFiles/file/sejisibolexu.pdfIn PDF document text
- https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/16080cea07bcbe---kifuw.pdfIn PDF document text
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/9a1a86144ce8eb714bef5dd53b7bc9f0/61438877578.pdfIn PDF document text
- http://usagimatur.com/files/others/65802312864.pdfIn PDF document text
- https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac4afb691b6---31141833892.pdfIn PDF document text
- https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/7c9872aafa7b3dcf3350b99906d68bb3/nekelata.pdfIn PDF document text
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/20eb6876c6153ac4f70b37956ca5b8fc/22715134611.pdfIn PDF document text
- http://paynechapelduquesne.org/clients/9/9b/9b910c66cef3ae2d1bb1fd5804160a19/File/46190751819.pdfIn PDF document text
- http://commsoft.nu/demo/ktb/wsmbilder/files/laxasobelikofuwid.pdfIn PDF document text
- https://bechtoldpaving.com/wp-content/plugins/super-forms/uploads/php/files/ae17275074268eca949f2ab633495243/96421766595.pdfIn PDF document text
- https://mosoptagro.ru/wp-content/plugins/super-forms/uploads/php/files/4b7ba4ebfd8a6c03f822ac1496206055/19337674996.pdfIn PDF document text
- http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160b63b9335ed4---wodifafozulijitinowevo.pdfIn PDF document text
- https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/da44beface0600c3db0fcced962df062/78971699258.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00018410.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18410 | 33520 bytes |
SHA-256: ca1e1361cfa9f813786c8fb91f14851b8debf01a32cb38f89115d1443e8a0178 |
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font_01_sfnt_off0001e94c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1E94C | 4860 bytes |
SHA-256: 54a43d0f846ece222cf0b3a7f82e39f7f0b0924c48743113ddacc4da2f6a4337 |
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font_02_sfnt_off0001f9be.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1F9BE | 11516 bytes |
SHA-256: 3b1c3527c689c177d0505313b3dc5ab7555a08578c1a9d3e8509668a0ad1cd36 |
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font_03_sfnt_off0002206a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2206A | 4324 bytes |
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
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