MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm hosted on compromised CMS uploads and disposable domains, a common tactic for phishing and malware distribution. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic indicates the document likely instructs the user to open a password-protected archive, a method to evade gateway security. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
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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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 http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a6ce95b6f9d---kuvixokep.pdf
- http://utopiasacramento.org/clients/0/07/071cdeedc048305be324eb10ab8031d4/File/sagedefevedifabomufuwomip.pdf
- https://lawyerupsmart.com/tempimg/file/xoboxepodok.pdf
- https://dtcprojects.com.au/wp-content/plugins/super-forms/uploads/php/files/sq1rk7uubbvhpdckf85l9u8s5d/dudipeliv.pdf
- http://musorcentrum.hu/files/article/file/33846987683.pdf
- https://culturasiapamplona.com/guiarte_userfiles/files/54461659518.pdf
- https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160865c4ae3e42---tabusibomivubowulenapu.pdf
- http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/e101eca39bd54fb9b62b52b95fdcbddd/xurasofamuxapivowuzuvibe.pdf
- https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8615b4f09b---remes.pdf
- http://vidol.nl/userfiles/file/88202395695.pdf
- http://notarbrazda.cz/userfiles/file/95224627782.pdf
- https://advancedbusiness.co/wp-content/plugins/super-forms/uploads/php/files/3e1b6b2b5c06f024f4acb730c2f26f77/80486150391.pdf
- https://namastehealth.in/wp-content/plugins/super-forms/uploads/php/files/f431q7er19ngm4dp5ok210jjo5/17097916734.pdf
- http://files.ibiza-ferien.de/file/fiwetefurisemewiz.pdf
- http://cohensevents.com/clients/74638/File/xuzavodirufanexitopa.pdf
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/16094938c636a8---ririfirenibivivopawuremu.pdf
- http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/77ad3a21f94cb2cd6d36d12f29c0e857/wefowijewokusifedetuki.pdf
- http://doks-films.com/pcms/content/file/lipofefenetuguvazip.pdf
- https://shared401k.com/wp-content/plugins/super-forms/uploads/php/files/26c141ad3583b0a1fb63f3dddf0d7e9f/91712270337.pdf
- https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/1607360e10b624---68816376947.pdf
- https://event-connections.net/wp-content/plugins/formcraft/file-upload/server/content/files/1606f7465bb55b---fapuwap.pdf
- http://contentworks.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606e82705fdaf---611818775.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=cheapest+month+to+travel+to+hawaii
- 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_off0000f3a9.bindbfab3002b127a4da7bfc1259c8ce3e33c1cc2ee95bbff32ab215c931aef86ec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3A9 | 17696 bytes |
font_01_sfnt_off00012230.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12230 | 16792 bytes |
font_02_sfnt_off00013a47.bin43ce8ae8ad77a05d69ad4b182492e63a941e8a6a64e6f071bffe5fe31df6445a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A47 | 10700 bytes |
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