MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious File
The PDF contains a link farm pointing to multiple domains, many of which appear to be compromised CMS uploads or disposable hosting. The 'SE_ENABLE_LURE' heuristic indicates the document likely instructs the user to enable macros or editing, a common tactic to bypass security. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to download a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9946
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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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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Macro/content-enable lure medium SE_ENABLE_LUREDocument instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
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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://akcjonariusz.com/UserFiles/file/74322945518.pdf
- https://tenfci.org/userfiles/file/rojagakixumibakowiwo.pdf
- https://gresathouse.com/wp-content/plugins/super-forms/uploads/php/files/65cd7db79e02bc838088da3d6313aeb1/lebewivototit.pdf
- http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/160a7fc4e60448---5910035178.pdf
- https://backcountryplayground.com/wp-content/plugins/super-forms/uploads/php/files/78d14b505bf6e1a0278674c845f65b53/visofovolekowur.pdf
- http://aa-nusd.jp/wafezolawelireve.pdf
- https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607174d893e0a---47325802220.pdf
- https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/bh8u29tc75f4pdn39ie5361k9v/71111795623.pdf
- http://www.k-24.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076ba9b28b14---69218497548.pdf
- https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/d7cb99a44d2fbbfbd34afb4b638df659/kimadevizedafisivuzulefev.pdf
- http://orchid-daikanyama.com/userfiles/file/11225044454.pdf
- http://israel-aliya.com/wp-content/plugins/super-forms/uploads/php/files/530cbccfc4a69cf0f8aaba6189e4b9a9/99398886554.pdf
- https://dtcprojects.com.au/wp-content/plugins/super-forms/uploads/php/files/kr1oaornb96j01pjpp4pegj1q2/nitarinumevabisejilegorag.pdf
- http://matrixuniverzum.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160d2bc0e0647c---rowuxekasazajizamusumog.pdf
- https://laser123.com/geektic/files/polokikirovesajes.pdf
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/7mqohmrnh21paftn5gklo695dq/suzulumirukofaju.pdf
- http://liburnia.pl/userfiles/file/romerivurak.pdf
- https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f980093333---potaponan.pdf
- https://myupfield.link/wp-content/plugins/super-forms/uploads/php/files/s12a1us8abbgl45546icq9vm3v/sunozogunefogud.pdf
- https://homini.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1608c22d76ca1f---83336978177.pdf
- https://myphambambi.com/webroot/img/files/78898652589.pdf
- http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/160861ee605426---danemotulakirufatarob.pdf
- https://iwnta.com/userfiles/file/44949467683.pdf
- https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/16077e806cf911---94570704331.pdf
- https://sharzh-ufa.ru/wp-content/plugins/super-forms/uploads/php/files/edda6d40a433d7d1d6815087bc688358/68423489701.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=symptoms+of+diphtheria+in+humans
- 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_off00016b97.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16B97 | 16792 bytes |
font_01_sfnt_off000183ae.bin374dfc787dd45d740423753ad37f228b175e2e4ecdb40240db0b37b3683d45e4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x183AE | 11008 bytes |
font_02_sfnt_off00019d11.bin8771b2d56bf89e65294bbf5af7da2dbf70dbc377e9c089fbad50182aae1b09dc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x19D11 | 18788 bytes |
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