MALICIOUS
216
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document exhibits characteristics of a phishing lure, specifically requesting sensitive recovery information. It contains numerous links to external sites, many hosted on compromised WordPress installations or disposable domains, suggesting a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to credential harvesting or further exploitation.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 7
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Recovery secret / private key request critical SE_SECRET_RECOVERY_LUREDocument requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
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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://archism.ru/uplcv?utm_term=san+certificate+example
- http://mikailang.net/userfiles/file/20210502090515_455379947.pdf
- https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afcc5721d80---piwuzofo.pdf
- https://criteriacambio.com.br/wp-content/plugins/super-forms/uploads/php/files/4smscv999dv106e0cvj2gvbfos/27700400449.pdf
- http://bafiti.com/sklep/userfiles/file/rinuwadoradixijanef.pdf
- https://aydin-elektrik.com/resimler/files/58143086797.pdf
- http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/91f27f78a1079e3705f7f7aaa0574f0c/pijijos.pdf
- https://hssipm.com/wp-content/plugins/super-forms/uploads/php/files/1ee77adfac301a4b32510813ea846226/babejojurow.pdf
- https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/cd812700efe3bd7f9f41dfba7ca1cfbc/89986553001.pdf
- http://lhs60to70.com/clients/3/32/32806278e47d7e4d905c37b1d6ebf04a/File/87607571358.pdf
- https://bluetact.com/locktactyuma/userfiles/file/77367357985.pdf
- https://www.hotelamoha.it/wp-content/plugins/formcraft/file-upload/server/content/files/160accddb9d256---bakemevinonul.pdf
- https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16095cda718330---ruxipifopob.pdf
- http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e4e0851c69---fetebasedijilorawajaluk.pdf
- https://www.adilaltinsoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607945196d9f9---gusazifapebirupuguji.pdf
- http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609f8b2d390ec---33045736806.pdf
- http://scmsalliance.com/clients/864514/File/1821374689.pdf
- https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/5ae64b2c59600290398d2f7700b53487/68190773361.pdf
- http://sazjah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608fb10d981f5---84962731336.pdf
- https://prikolnaya.com/wp-content/plugins/super-forms/uploads/php/files/cafa43290c66d83bbe7f9081d9fcd5bb/52762001100.pdf
- http://jagatjyotischool.org/jagatjyotischool/userfiles/file/11466385390.pdf
- http://paitoonbox.com/userfiles/files/20003043631.pdf
- https://eminencesolutions.in/resources/userfiles/file/46288232507.pdf
- http://nextgt.eu/uploads/file/17229955340.pdf
- http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6e8d551281---kagagep.pdf
- https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/0aded72c43dbbd5fbdb38ba58d0c096b/19405188102.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_off0000e25d.bin1be13b4e78f2ad923fa69fd4e9f5541176cedf2dd506f681d3c434e8d11a7238 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE25D | 17172 bytes |
font_01_sfnt_off00010f7a.bin3de3d84222b8850de43f7d61246052f88c0dce41e1f476b8667bced98cf99dcb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F7A | 10528 bytes |
font_02_sfnt_off00012775.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12775 | 16792 bytes |
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