MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to multiple external websites, many of which are hosted on compromised CMS uploads or disposable domains. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure suggests a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
Heuristics 7
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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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://papinchess.ru/userfiles/file/zazolatelutejurikuzijub.pdf
- https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/1607e7b6fe41f6---23805828955.pdf
- https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bf2ddc120ff---piboxefegikefeva.pdf
- https://bandotrading.com/uploads/file/57325355373.pdf
- https://balance-global.com/wp-content/plugins/super-forms/uploads/php/files/ks5pt73anhb46sefm4k0rcqj2b/9331281176.pdf
- https://srp-galabau-rostock.de/wp-content/plugins/super-forms/uploads/php/files/kmcpj3bgdis416p4jre5capdso/54831594506.pdf
- https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bece7a26b9---xetagujevedoxo.pdf
- http://womenscouncildallasarboretum.org/clients/85748/File/23677154842.pdf
- http://soft-pro.hr/upload/datoteke/58815690423.pdf
- http://www.look4job.gr/images/_user_na/file/sowuwuzuvumukulifabe.pdf
- https://finestblogger.de/wp-content/plugins/super-forms/uploads/php/files/aoc67orn7mveofekc4lsguflvu/45752535494.pdf
- https://alatheir.com/atheirwsfiles/file/17429504303.pdf
- https://tirthmobile.com/wp-content/plugins/super-forms/uploads/php/files/umsn43rdaaddgmulf77bqsgirf/39899836307.pdf
- http://www.segurosfacility.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160d67274a3d00---89964621503.pdf
- https://www.medipratik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608806c201ce7---buwovebe.pdf
- https://www.amiunaorchestra.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1606f0476dcfd9---5166239224.pdf
- http://hongshengfish.com/uploadfiles/20210625/210625170313984656rchvwna6gsxr.pdf
- http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4724812783---78536888731.pdf
- http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/160a55fcfea08b---nizonulatero.pdf
- http://ferrocom-spb.ru/userfiles/files/46923735153.pdf
- http://ahlhy.com/uploads/file/010156545656.pdf
- http://bogelaipigeon.com/upload/file/95790313462.pdf
- http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/65123525fd7ca623c4bf23c6c8d14b2e/24204860625.pdf
- https://hotelindigha.com/FCKeditor/file/surojizititi.pdf
- http://aj-logistics.com/stock/userfiles/file/85797330451.pdf
- http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/160baf5f5a3e1e---bunodifomo.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=conversion+table+inch+to+mm+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_off0000e8d0.bin2397637aab8ec4388c8207981ff45be8bddd8f73765272dfc6b9764766ce3eb2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8D0 | 11124 bytes |
font_01_sfnt_off0001026b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1026B | 16792 bytes |
font_02_sfnt_off00011a7d.binf006933361016e3303f5e0c81e378735bc9c1cc3fd08d45a74addf2ff2a852e0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A7D | 17300 bytes |
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