MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and an ML classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous links pointing to compromised websites and link farms, suggesting a phishing or malware distribution lure. The presence of embedded URLs and the nature of the heuristics indicate an attempt to redirect the user to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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 https://archism.ru/uplcv?utm_term=myers+psychology+for+ap+practice+test+answers PDF link annotation
- http://ombs.ru/uploads/files/ligipatimasimaker.pdfIn PDF document text
- http://goldmustang.com/files/files/10964852262.pdfIn PDF document text
- http://chnli.tw/CKEdit/upload/files/25342376532.pdfIn PDF document text
- http://lab4050.com/upload/editor/file/20100799854.pdfIn PDF document text
- http://visusmarble.com/images_upload/files/zezapumedipejokujikinun.pdfIn PDF document text
- https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/bfa9eab6e1f5d9e5c8fe5dce5c741201/gimadeboji.pdfIn PDF document text
- http://papianiarch.it/userfiles/files/pavitenavava.pdfIn PDF document text
- https://nceptionsolutions.com/wp-content/plugins/super-forms/uploads/php/files/c8b81a2629e8ec0b84217a82685d5e9c/sogorikerijo.pdfIn PDF document text
- https://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160982c37085d8---13416379321.pdfIn PDF document text
- https://michelbarbot.com/upload/files/50193234179.pdfIn PDF document text
- http://thunderstar.cn/userfiles/file/20210502052311565268221.pdfIn PDF document text
- http://schokobrunnen.com/idata/84134839010.pdfIn PDF document text
- http://drive4smilesquebec.ca/clients/f/f5/f58105ca183540932673f5bf18e62671/File/dupufovuvekafesedeb.pdfIn PDF document text
- https://zippy-inc.com/app/webroot/userfiles/files/17846112206.pdfIn PDF document text
- http://liburnia.pl/userfiles/file/jevaxixetelugux.pdfIn PDF document text
- http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160846ba9c850a---momiwagunasedebarek.pdfIn PDF document text
- http://kxnjl.com/userfiles/files/98768592758.pdfIn PDF document text
- http://www.firstpages.eu/app/webroot/files/userfiles/files/fizokum.pdfIn PDF document text
- http://adamlegal.com/userfiles/file/92683605386.pdfIn PDF document text
- http://nuyewpilot.academy/wp-content/plugins/super-forms/uploads/php/files/76198a2c74356825bdee6ec05e734d16/56361208808.pdfIn PDF document text
- http://ascensionchina.com/userfiles/file/70515227140.pdfIn PDF document text
- http://fabrykakonwersji.pl/wp-content/plugins/super-forms/uploads/php/files/9865ade640bc96e3981bccbf7e232e3c/tufuvanerutazux.pdfIn PDF document text
- 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_off0000c76f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC76F | 10952 bytes |
SHA-256: 20959254656b2b9fc1d6209940a8abb48a8e7d861c3e9b081b4f41c00959f38a |
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font_01_sfnt_off0000e0e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0E3 | 16616 bytes |
SHA-256: 3992083ef1f184cfaafc1028184f5c792aa9f31ae719b16efe21d09806cba433 |
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font_02_sfnt_off00010ba1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BA1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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