MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file detected by ClamAV as Pdf.Phishing.Trojan. Heuristics indicate it contains a link farm pointing to compromised WordPress upload storage and disposable hosting, suggesting a phishing or malware distribution attempt. The ML classifier also strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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.norestim.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a308ff6a6e7---90068878154.pdf
- https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/cdf5c92616c2671ed0e9aaa3eea7b506/xebuv.pdf
- http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/160be107b09e70---juvegejo.pdf
- https://vaytieudungtragop.com.vn/wp-content/plugins/super-forms/uploads/php/files/b34o0pgtquh6jp6ec5i80jduef/ketaji.pdf
- http://www.alquilerbares.com.ar/wp-content/plugins/formcraft/file-upload/server/content/files/1607a426cbabc0---26270029977.pdf
- http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/984bb3750b3f80baed648da62379bc8b/43816447005.pdf
- http://cucthongke.vn/userfiles/file///gojijetejuwavodolewovid.pdf
- https://donnasalon.ru/wp-content/plugins/super-forms/uploads/php/files/4596ac38d5ed0b0f50ac0f469bb56e7c/rimanikamadadevomesen.pdf
- http://21cedu.com/pds/userfiles/files/42154618153.pdf
- https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/pnlvp2l04f1mqocu0e2jf1p1ug/pekisomofogosinoneziv.pdf
- https://alkhairi.co.uk/wp-content/plugins/super-forms/uploads/php/files/c75e2c5a5e40ab1904bdbf7162c7abba/teradurosexi.pdf
- https://plswa.com/wp-content/plugins/super-forms/uploads/php/files/1aadd79bd20f92a7f5ed8ccd5750b636/kamisidarekim.pdf
- http://minerva-collection.net/files/files/xetef.pdf
- http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/160748c6b9faf3---780050377.pdf
- https://trichynext.com/wp-content/plugins/super-forms/uploads/php/files/325548aba88e6a864ef766f5a30d8214/tuludaretasoxuzitir.pdf
- http://beetsom.com/PROGRAM_FCKeditor_UserFiles/file/191245787060b33145a633a.pdf
- https://bonafideonline.com.ar/wp-content/plugins/super-forms/uploads/php/files/bcbeefdc15f87a2f0c5c1d45701de983/86067387229.pdf
- https://www.analfissur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080d5a37cb16---76324620260.pdf
- http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/1606f1bf2150c7---42304364784.pdf
- https://peterdegendt.be/file/1961660208.pdf
- https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/csljg93var104856e1usrpplvo/13042639401.pdf
- https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/i78jdmoe447oldk1357h1opbht/xobizinoma.pdf
- https://rjiminfra.com/wp-content/plugins/super-forms/uploads/php/files/0ee2981a3c4d274c904db5af3e98fcff/lefapis.pdf
- http://mfcwestenkwartier.nl/beta/userfiles/file/ximemotibovubumapon.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=brown+and+grey+wolf
- 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_off0000dee3.bin42bef8d9dfee8a2472be6a0638e82d079f4b2bc36db6d23b8b7e24b68266f0a0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEE3 | 19348 bytes |
font_01_sfnt_off0001110e.bin9bfc82eff1243b912b72d12c549edfc419a247b8fd72851479bdf5aa8210bb57 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1110E | 10424 bytes |
font_02_sfnt_off000128ad.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x128AD | 16792 bytes |
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