MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. The document contains numerous external URIs, many pointing to compromised WordPress upload storage, suggesting it functions as a link farm. The primary purpose appears to be directing users to potentially malicious websites, likely for phishing or further malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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 https://ketchas.ru/uplcv?utm_term=i+wanna+go+home+old+country+song
- https://kayakbranson.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d9e0e75ec8---34390631887.pdf
- http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160b9df303c4b1---zopurelategilifim.pdf
- http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16081f47d49025---46152432633.pdf
- http://goldway.jp/upload/board/file/lopomibesanizubukezepusa.pdf
- https://ev-owners.jp/userfiles//files/38235188021.pdf
- http://xn--80aaeiengkwpz6p.xn--p1ai/pub/file/40930407120.pdf
- https://maugli24.ru/wp-content/plugins/super-forms/uploads/php/files/9c2cef309ef73a8c14ce5453d24a0d31/puzonuzubularofabofi.pdf
- http://skonasystems.com/userfiles/file/77139387169.pdf
- https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/7r5dgtgpdc5af7bhah01vllir5/34274272087.pdf
- https://www.parkgest.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160a77351f15cc---62255900348.pdf
- https://studiopros.com/userfiles/file/
- https://michaels-limo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d91f137d6f5---migazedasedirebidosekes.pdf
- https://www.getfitcrew.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c3cfb71af11---29907555814.pdf
- http://maychaybocaocap.com/app/webroot/uploads/files/92908679486.pdf
- http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609cb83928062---kemirizixomotidenilus.pdf
- https://www.arphplumbing.co.uk/wp-content/plugins/super-forms/uploads/php/files/ol5dh2l65jr70sutufqs0dket6/xuvibasalivazivujobedore.pdf
- https://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609ecd6a5f5ad---68894404980.pdf
- http://bhsclassof70.com/clients/a/ac/acf0241a72c9eb28a719a759cf8a4748/File/29968081503.pdf
- http://location-appartement-venise.com/italie_documents/files/bimusapejofimi.pdf
- https://fiambreszav.com/wp-content/plugins/super-forms/uploads/php/files/75217ea0b122f3e878a3ed1c14d6bbdc/tamafapewudivibejodi.pdf
- http://md-servicios.com/userfiles/file/xarudolole.pdf
- https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/921afe759f76b8a6d8593ed694367f8b/69161118694.pdf
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b9c5904a61d---6538485074.pdf
- https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/4215102a58e9595cca29e531405ca621/69364891451.pdf
- 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_off0000f69e.bin17764e6ff90725ee3b1903f010bbca282ec2a9c55d10818d14edd236fc8aa1b0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF69E | 17056 bytes |
font_01_sfnt_off0001230d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1230D | 16792 bytes |
font_02_sfnt_off00013b24.binf6bdbdcc6fe8a64dd3b18811468f7ec36c401bb2cda1d956062186bc69149ec4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13B24 | 10976 bytes |
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