MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of external URIs, many of which point to compromised CMS upload directories or disposable hosting, indicating a link farm designed to distribute malicious content. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic suggests the document may be intended to trick users into downloading an archive, which is then decrypted with a password provided within the document, a common tactic to bypass gateway security. ClamAV detection further confirms its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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://drafthe.ru/uplcv?utm_term=acadia+national+park+cost
- http://altaprecision.com/userfiles/file/lizefamizozinunepefigewe.pdf
- https://unosms.us/userfiles/file/jupokaxunivonatajogewamow.pdf
- https://didacostruzioni.it/userfiles/file/molaxen.pdf
- http://sugarfree-gelato.com/upload/file/48504934472.pdf
- http://0vote.com/ckfinder/files/zisinotuvurajikamogudaba.pdf
- https://elicopter-de-inchiriat.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160bbe3fd6f10b---44341278938.pdf
- http://raunlarose.us/wp-content/plugins/formcraft/file-upload/server/content/files/1608fda23704d0---76045836004.pdf
- https://dansobentre.net/uploads/file/bedusoso.pdf
- https://www.themeshcowork.com/wp-content/plugins/super-forms/uploads/php/files/a3017508ff643785c960191dd9904db0/kosifafatizekekawusek.pdf
- http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6ea4cf1cdf---3610724683.pdf
- http://aberdeeneyes.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160839029c6d7f---poxuvaxodekux.pdf
- http://hphs1958reunion.com/clients/47465/File/genujusigeladilem.pdf
- http://jpmoto.biz/upload_picture/lekibeb.pdf
- http://www.atrium-tuiles.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073aa2795603---bujepufexabox.pdf
- https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/64303784e8c44144d29edf1649292559/8259695343.pdf
- https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/rpvj0tv9prbpomtmg9fqls6tm7/34097912977.pdf
- http://nw-line.ru/generic/uploaded/kawenakibuwebigamukugap.pdf
- http://koryosushi.com/uploads/files/teniwunedu.pdf
- http://msslink.ru/userfiles/files/gased.pdf
- https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6d652645e2---51080688124.pdf
- https://cald-lighting.com/wp-content/plugins/super-forms/uploads/php/files/307d30a3b46e29dfc623159c6695f8fc/56246556465.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_off0000dd5e.bin21ef71de6f36f79dac9bb708647af072b93279f5e3eae8a1161041b5cd0a752f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD5E | 17464 bytes |
font_01_sfnt_off00010aef.bindf637be9791aef26007f9e08ca99a05fd1c04763f5e2a5abd58a88ff493a41fd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AEF | 10448 bytes |
font_02_sfnt_off000122c7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122C7 | 16792 bytes |
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