MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. The presence of a 'Password-protected archive handoff' heuristic suggests the document's purpose is to instruct the user to obtain a password for a separate archive, a common tactic to bypass gateway security. The document also contains numerous links to potentially compromised websites, indicating it is part of a link farm designed for SEO poisoning or to host further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9923
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://medok18.ru/wp-content/plugins/super-forms/uploads/php/files/cae945f5e95d99f27667eb7fad10cf50/49047391176.pdf
- http://111-orte.de/testarea/cwsCMSlight/media/files/29417104080.pdf
- https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/550dc42235f07397e7d09e91416b5cb6/nomederupeto.pdf
- http://suachuabaoduongmaynenkhi.com/img_quanganh/files/32133844247.pdf
- https://burkina-businessschool.com/business_school/uploads/file/89543337578.pdf
- https://primewestelectrical.com/wp-content/plugins/super-forms/uploads/php/files/398d946e9a74ff1a34565dc9d5cdb8b6/wewoboninenite.pdf
- https://reifenscho.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a9c0f9190c1---kofejija.pdf
- http://www.lbf-cosmetics.com/website/wp-content/plugins/formcraft/file-upload/server/content/files/160bfab326a7b5---2738238441.pdf
- http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160c46c308cba5---86913449035.pdf
- http://thm-holding.ru/wp-content/plugins/super-forms/uploads/php/files/69078ab553ca401f97558b973ac5f8cd/98257851498.pdf
- http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16085d114cdb3a---5403752526.pdf
- https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6d6fb4da0d---zapuwoladojivude.pdf
- https://novzelandiya.ru/ckfinder/userfiles/files/nurafolovurotudadu.pdf
- https://berbagiangka.com/contents//files/45076799284.pdf
- http://abwalabamaave.com/uploads/files/zejopeluxosiraj.pdf
- https://leesman.com/wp-content/plugins/super-forms/uploads/php/files/da93de4a99d5404f0f4d1d131126cdfc/61081503340.pdf
- http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/160717984ef97b---53933963316.pdf
- http://theultimatemarketingsystem.com/survey/userfiles/files/40460485612.pdf
- https://www.dishdivvy.com/wp-content/plugins/super-forms/uploads/php/files/a049903af18f318368c96525dfb3eb10/benajebokukewusorawizu.pdf
- https://arihantgranites.in/wp-content/plugins/super-forms/uploads/php/files/8svcceft9oarkec9d7hmplvrj5/jaxatewobexufudevatotek.pdf
- https://ikitellirezistans.com/upload/files/mavoxinevominabelesen.pdf
- https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074cd9c941c3---89622041793.pdf
- http://aryajob.com/user_upload/file/29617287907.pdf
- http://akkoryazilim.com/userfiles/file/xugazelojisusonewageweduk.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=the+complete+guide+to+the+toefl+test+ibt+edition+audio
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c77f.bind4dd684fba600e76e82113b3b9fa2a46dd4ef110c5a3fec107e983de25f62797 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC77F | 17596 bytes |
font_01_sfnt_off0000f507.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF507 | 16792 bytes |
font_02_sfnt_off00010d18.binfb982d6e50751d4cb5b75adb077c10e25a3391ffbd20358c06f3a9f009176c8a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D18 | 17628 bytes |
font_03_sfnt_off00012815.binfd456c2017489a7b40af24747c45bf9a0c83e08f92e75cf08cd251c0b6ef383c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12815 | 11172 bytes |
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