MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file is identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. The presence of numerous external URLs, many hosted on compromised WordPress sites, suggests a link farm designed to redirect users to malicious content. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' strongly indicates the document's purpose is to trick users into believing they are receiving a password for an archive, a common tactic to bypass gateway security and deliver a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 7
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://inwebjor.ru/uplcv?utm_term=bella+renesmee+and+edward
- https://iescolumbus.org/wp-content/plugins/super-forms/uploads/php/files/97abe08020cd472acb7a8717de1b5a74/54607560563.pdf
- http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f9bd2d591d---5877865937.pdf
- https://energooptima.hu/upload/File/55569664039.pdf
- http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/eb34141a93c8b3f60d5f1e734b228be0/3840528876.pdf
- http://ge-mak.com/files/62554643429.pdf
- http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16088b6893a0fb---zatukal.pdf
- http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cb615239141---guxavaxejol.pdf
- http://quangcaosms.org/media/ftp/file/jubolofewete.pdf
- http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c81722cdc1---womuxufujozalir.pdf
- https://www.getfitcrew.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a73bd705b77---26058776213.pdf
- http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/uutcppep9n0nrdj0cl9q8jd530/soralupemefitewux.pdf
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16071f741e0074---funudasimubumotitaravu.pdf
- http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/1607efecebaa22---25424125709.pdf
- http://0-50.ru/userfiles/file/2011443239.pdf
- http://kondicionery-dolgoprudny.ru/upload_picture/file/laradexoxodoparuluvidum.pdf
- https://edukiya.com/wp-content/plugins/super-forms/uploads/php/files/1ae89ab94444549a9ef56b96db884f56/tidifuwokozunopevagewo.pdf
- http://shmountaineering.co.uk/wp-content/plugins/super-forms/uploads/php/files/8ss5u7o3vaf2icbmu22dg0sgf1/kenikizowefo.pdf
- http://arunimaflavours.com/userfiles/file/noralimelomos.pdf
- http://banglatalkies.com/dynamic-images/cms/file/94001792302.pdf
- https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/nr6s24i4fs0qsb4da7arjovpoc/xepolalurukivajuvidolavan.pdf
- http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160af696322160---20553739253.pdf
- http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/16082638ff277c---xusurefapirezalovoli.pdf
- https://ols.lighting/wp-content/plugins/super-forms/uploads/php/files/f2940fd6964135f32ed2d130295e0700/bubudaxagis.pdf
- https://rinducm1.com/contents//files/zewaxavosidikaxaka.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_off000154a7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x154A7 | 16792 bytes |
font_01_sfnt_off00016cb9.bina75f43afb897576cbc03ee54b850bd622207a14fb8f7541e888f7704fe535c20 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16CB9 | 18168 bytes |
font_02_sfnt_off00019ae8.bin62fc9e60a3cfa3b5c11516786a33b429aca07864fb0a897a1fb2066cb3cabc64 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x19AE8 | 10240 bytes |
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