MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users. ClamAV and ML classifiers identified this PDF as malicious, specifically flagging it as a phishing trojan. The presence of multiple external URIs and link farm heuristics strongly suggests an attempt to lure victims to malicious sites for further exploitation or credential harvesting.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
Heuristics 6
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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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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://cructi.ru/uplcv?utm_term=how+to+find+recycle+bin+in+android
- https://gmt-tw.com/app/webroot/userfiles/files/fesixopukowixi.pdf
- https://mehreganimaging.ir/images/upload/files/foxenexiselefotawubifugej.pdf
- https://ccichn.vn/data/upload/file/zinamolebefux.pdf
- http://dribblebar.pl/userfiles/file/fojuxakazedafijed.pdf
- https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613763a495920---jukoxaj.pdf
- http://mixline.ru/img/lib/file/waxuguriruzibib.pdf
- http://poney-club-romilly-aigre28.fr/userfiles/file/xasenikexot.pdf
- http://www.cda.org.hk/ckfinder/userfiles/files/getovejaseg.pdf
- https://piataafacerilor.ro/app/webroot/files/userfiles/files/32805459058.pdf
- http://jx4d.com/userfiles/file/72566339988.pdf
- https://krzczonowice.pl/gfx/file/81721752941.pdf
- http://ohsongpharm.com/ckfinder/userfiles/files/98127348722.pdf
- https://gtnet-engine.com/ckfinder/userfiles/files/sazilimewevevokoj.pdf
- http://stoka-saarlouis.de/userfiles/file/34994616615.pdf
- http://montaze.org/democms/userfiles/file/31316762134.pdf
- https://luckyfood.itweald.com/uploads/files/613014b2936bc.pdf
- https://balticstroy.com/uploads/files/20712532883.pdf
- http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c2d9b47c17---32110864240.pdf
- https://kermoulin.com/userfiles/file/zovuzejagavomamulowod.pdf
- https://kcharp.com/ckfinder/userfiles/files/fopapuxegazedomad.pdf
- https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/c9046f249f8e19a82737e439754c7930/xegozixajowuz.pdf
- http://spodne-pradlo-2bpoint.sk/UserFiles/File/nofonesobisinetudeva.pdf
- http://ap116.ru/userfiles/file/zigivetig.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_off0000ca8c.bina705b457c001cc4cf58d17a927aab196357511baa5602198498c9334b32c4131 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA8C | 17152 bytes |
font_01_sfnt_off0000f71c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF71C | 16792 bytes |
font_02_sfnt_off00010f33.bin681f8af22928419083f9ffaff0b2457fa2fc69e3a1a0d969f9efc6997c2ef1a4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F33 | 10632 bytes |
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