MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm with numerous external URIs, many hosted on disposable domains, indicating a likely attempt to lure users to malicious sites. The ML classifier and ClamAV detection strongly suggest malicious intent, consistent with phishing or malware distribution via a spearphishing attachment. No scripts were extracted, but the structure and URL patterns are indicative of a malicious PDF.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
Heuristics 6
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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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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://www.hgekc.com/media/userfiles/file/xobutuzuxepidigodoguri.pdf
- https://firmabudowlanawalczak.pl/web/uploads/files/54298596872.pdf
- http://villalapinetafavignana.it/userfiles/files/gorukole.pdf
- http://smirna.pl/files/file/35099939653.pdf
- http://zatuchlina.cz/upload/file/98120326099.pdf
- http://tchid.net/userfiles/file/97549641271.pdf
- http://heathrowairporttaxi.website/userfiles/file/rosepinatum.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16138387dc7ead---63168487305.pdf
- https://dazhonghua1688.com/ckfinder/userfiles/files/bamakomovebupunabifi.pdf
- https://ezokniga.com/uploads/file/77016706198.pdf
- https://rumputhijau.com/contents/files/68793779711.pdf
- https://www.shopveriamici.com/wp-content/plugins/super-forms/uploads/php/files/umpouhqh6c8bqi484isevqs7ie/54659094917.pdf
- https://idfusionllc.com/wp-content/plugins/super-forms/uploads/php/files/b58a13be3856a528680953054736f57d/xufesedo.pdf
- http://skupka23.ru/upload/m/sabekokokuwazonakeren.pdf
- https://vleek.com/uploads/files/41405160314.pdf
- http://thainightjob.com/ckfinder/userfiles/files/wofekulafebexed.pdf
- http://ourdesign.hk/ckfinder/userfiles/files/rixufibanoxuzozegoloxijex.pdf
- http://liebherr-tr.com/userfiles/file/sinabifub.pdf
- http://alrabbanoilandgas.com/file/files/jodozigisafomuzasokile.pdf
- http://itena.si/uporabnik/file/64198443430.pdf
- http://tdsns.ru/userfiles/file/muwewebodeko.pdf
- https://hotel-la-licorne.fr/userfiles/file/xunuf.pdf
- http://cissi.it/userfiles/files/bivedotizububevi.pdf
- http://xn--ob0bjxt9h99icicrvkksa421cwwp7hiv4d6a.com/ckfinder/userfiles/files/77758856574.pdf
- https://aadhaarretail.com/administrator/imagetemp/file/37944340920.pdf
- http://lecieldesandes.fr/ckfinder/userfiles/files/mubabewoxanetod.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=how+to+share+multiple+images+in+android+programmatically
- 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_off0000de17.bin31261ce12e57f581e3ab62e6f68ad3d30fc5854959fea6e2522749bc7c284848 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE17 | 11252 bytes |
font_01_sfnt_off0000f827.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF827 | 16792 bytes |
font_02_sfnt_off00011039.bin7f7ea8596c997ea14c8777b709e4bf24608b149b4c09bc41d8299d78500d37e4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11039 | 19304 bytes |
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