MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and a link farm pointing to multiple disposable hosting sites, indicating an attempt to distribute malicious content. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic suggests the document is designed to trick users into downloading a password-protected archive, likely to bypass security scanning. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9908
Heuristics 8
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://lor-rostov.su/userfiles/files/9634672404.pdf
- https://www.limratechnologies.net/wp-content/plugins/formcraft/file-upload/server/content/files/16142ad0c937b6---tetanewuzaleveweseda.pdf
- http://hosungtour.net/FileData/ckfinder/files/20210904_CF96D13935B042BD.pdf
- http://stilistspb.online/public/files/uploads/files/24789654641.pdf
- https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/d744aba955bfbee8ab7a3b50f8151725/ragowetufurakedox.pdf
- http://thicongdiennuocmiennam.com/uploads/files/40872937130.pdf
- https://sklepbonus.eu/userfiles/file/91070728100.pdf
- http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614b7f10e2bcc---rurujorarutibazeba.pdf
- http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614b22dc19e88---75629914235.pdf
- http://buffagiuseppeinfissi.com/userfiles/files/12182103025.pdf
- http://mytrangroup.com/uploads/userfiles/file/vorifuxidag.pdf
- http://mictrogiang.com/userfiles/files/pemijivisulakomevuwizeda.pdf
- https://sweetburden.com/upload/users/files/dogilarefekunajixugodix.pdf
- http://peach2560.xyz/js/ckfinder/userfiles/files/74455537726.pdf
- https://o2opr.co/userfiles/files/73108645455.pdf
- http://www.hangmandigital.com/files/file/nigidesoforafoxokuvisixuf.pdf
- http://proreferee.ru/uploads/ckfinder/files/19887953893.pdf
- https://faresaldabbous.com/uploads/files/sutojiz.pdf
- https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/sbj02osp04ngsus3i4k3lurl1c/genetetiru.pdf
- http://zaiger.ru/img/file/33511494552.pdf
- http://encino.ilovepokebar.com/uploads/files/wunuku.pdf
- https://cincia.ro/ckfinder/userfiles/files/78064084999.pdf
- http://serramentisiciliano.it/userfiles/files/getorotebapebu.pdf
- http://tctrack.vn/images/newtech/files/55410427739.pdf
- https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1614ae49240ed5---ribiwiko.pdf
- http://steffis-strassladen.de/userfiles/file/pugikuxefufopawuzepo.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=winrar+for+android
- 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_off0000c5b4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC5B4 | 16792 bytes |
font_01_sfnt_off0000ddca.bin6ec51146a30a7e5673e49bd252460f911b8d96cb6dd0ce06374360db4ff5afea |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDCA | 9896 bytes |
font_02_sfnt_off0000f3a3.bin23d7c5441f2ace9c7136406e52f29d9ddcdf955561ccf1a0fd6cdb1734599f68 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3A3 | 16332 bytes |
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