MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links to external websites, many hosted on compromised CMS uploads or disposable domains, characteristic of a link farm designed to redirect users to malicious content. The presence of embedded URLs and the heuristic for a 'QR-code redirect lure' further support the phishing or malware distribution intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9988
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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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://adamlegal.com/userfiles/file/merik.pdf
- http://dj-venci.com/uploads/pages/files/ramujivedafesero.pdf
- http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/160a5e4455dae9---55015255735.pdf
- https://artasedanasingaraja.com/uploadfck/file/jejufekojowebojularorewaj.pdf
- http://smartvoicecom.com/userfiles/bofekor.pdf
- http://aite-materials.com/upfiles/file/wezuvukaletewiniwokijo.pdf
- https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ec9f54bbd2c---65675917203.pdf
- https://securityguardsupply.org/php/uploads/file/jaduxujapax.pdf
- http://penoplex24.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c77d1b26401---kamakoxakag.pdf
- http://aromamahabaleshwar.com/ckfinder/userfiles/files/37529928253.pdf
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/feb7bee62f2de2dcd46aefc25ecfba2d/juponowebubuvotukopu.pdf
- http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/ff7ad62d59930da8410e7af78c2e3f93/29772450783.pdf
- https://sakitonus.ru/wp-content/plugins/super-forms/uploads/php/files/c0e69d423ae2c019bf5d3d52119b7150/wozexide.pdf
- http://bereanbaptistashton.com/clients/1/1c/1ca8668e480cca1e897b6add33210fc6/File/76786029809.pdf
- http://airconbank.com/upload/fckeditor/file/55105740792.pdf
- http://gphs100.com/clients/e/e3/e3ed30f4e85b1ff1e74f61348c82e8eb/File/93869721775.pdf
- http://hotararicedo.ro/files/files/93934549280.pdf
- http://kulturazebrak.cz/userfiles/jilotijal.pdf
- http://bindashnews.com/userfiles/file/91900179225.pdf
- https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7d5f18c9ff---muloxodexipituzef.pdf
- http://www.jfac.kr/ckfinder/userfiles/files/11006351579.pdf
- http://branpc.in/ckfinder/userfiles/files/kukazesabezoxalitijux.pdf
- https://sportli.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1609b4aa201bb7---74609860677.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=amme+ente+amme+malayalam+song+mp3+download
- 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_off0000cfb4.bin134214454f5703681d58c0c281a16af5ac5c21f4d134009b0eeef73616427786 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCFB4 | 10896 bytes |
font_01_sfnt_off0000e8d7.bin5916c1e82b3945f023fb649c4f9ca11e268bdbf8997f61ee88dbc6f842c1d9a1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8D7 | 17288 bytes |
font_02_sfnt_off00011685.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11685 | 16792 bytes |
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