MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file contains embedded JavaScript and a significant number of external links, many pointing to disposable hosting or compromised WordPress sites. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to serve as a lure for phishing or to download further malicious payloads. The presence of embedded JavaScript suggests an attempt to exploit vulnerabilities or redirect the user to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://tz5168.com/uploadfile/image/2021/07/30/file/20210730_045127_148.pdf
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/161255bb5b34bf---xabilidonaxosixize.pdf
- http://braintradingbcn.com/wp-content/plugins/super-forms/uploads/php/files/33bb4cf4664b51ceb7843005918f4386/50305257121.pdf
- http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160ce9e0b6456c---64855697507.pdf
- https://www.myjamaicais.com/wp-content/plugins/super-forms/uploads/php/files/e96f90a8bf982403ef9995e527b10d24/lekav.pdf
- https://ekransamara.ru/files/74698041843.pdf
- https://optimustelecoms.com/ckfinder/userfiles/files/lajapalozevit.pdf
- http://teen.plovdivweek.com/js/ckfinder/userfiles/files/wazomufowukukaxazijavo.pdf
- http://hoanggiaphatland.com/uploads/image/files/sadobataxaximifazoriris.pdf
- http://asbu.net/uploads/FCK_files/file/33748375635.pdf
- https://moma-restaurant.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090b9a033bd3---22796961043.pdf
- https://minervatech.work/js/ckfinder/userfiles/files/64182544950.pdf
- http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160bdb349a995f---tefujoxupovixenuxutav.pdf
- http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160afe1ac4c29c---23388862166.pdf
- http://jtylek.pl/Upload/file/samipidejebili.pdf
- http://payassistinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160770e1db262f---vajemopibatuzarakuforarer.pdf
- https://tigapilar.com/upload/files/fuwamotugexedufivera.pdf
- https://olivierdaulte.com/ckfinder/userfiles/files/9176984901.pdf
- http://zenithmetals.com/files/tixujidukidegojugefodunuv.pdf
- https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/16084da7738f30---sulorenu.pdf
- https://congchunghadong.com/uploads/files/tupogal.pdf
- https://anaksemut.com/contents//files/4132980404.pdf
- https://web-sila.ru/wp-content/plugins/super-forms/uploads/php/files/cb646976ceaafd747a3b53e129cdfa48/93941446662.pdf
- https://btegypt.com/file/berumexa.pdf
- http://ctnphrae.com/ckfinder/userfiles/files/gulojaxakemawin.pdf
- http://agro-pasz.pl/ckfinder/userfiles/files/17571391030.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=tigran+hamasyan+sheet+music+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_off0000df95.bina325f99f400e395f56c0fa1794b6966f524fe183d7a2fc325d0bfb243a822a2c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF95 | 20192 bytes |
font_01_sfnt_off0001148e.bin62c20e1fdc876aaa913edaad233be5651eacf6f4ec86fc671aa9a0fdf2204b6b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1148E | 11076 bytes |
font_02_sfnt_off00012e06.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E06 | 16792 bytes |
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