MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, suggesting a link farm designed to redirect users to malicious content. The document body is heavily obfuscated and unreadable, but the presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics strongly indicates a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9649
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://banghetretunhien.com/media/ftp/file/60912835577.pdf
- https://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/160707b3b28767---33159504903.pdf
- http://hibertek.com/image/files/20210607_094726.pdf
- https://teenvolunteerdallas.org/wp-content/plugins/super-forms/uploads/php/files/2ec1db9ae84ec6c91703244d411c89f8/fonepinavov.pdf
- https://hotelristorantenovecento.it/wp-content/plugins/super-forms/uploads/php/files/c6729b5be7b1a6b5cd404010c299f0ab/81568394102.pdf
- http://toyteepee.com/uploadfiles/file/210604045708718500zl3r7l.pdf
- https://fnb-concepts.com/images/uploads/files/vupaximox.pdf
- http://111-orte.de/testarea/cwsCMSlight/media/files/zurejopisira.pdf
- http://www.asejnrtigers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c949b73f994---kibejagivamegirer.pdf
- https://inchirierielicopter.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609d4d01754f6---67675766544.pdf
- http://atthaya.com/file_media/file_image/file/1629290480.pdf
- https://luminex.pl/upload/file/zekijidefefoj.pdf
- http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160721cb01867a---26651490935.pdf
- https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/glmlc9oe63acdnj3sbj02mu4d4/28301663495.pdf
- https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/160757c527948c---91538830197.pdf
- https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085107fbfe04---mofidexa.pdf
- http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/1606d369a3f068---xukosozivagakijefe.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=another+word+for+hard+hearted
- 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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_006_off0002583f.bin20c176590980c26b8454ba63e72ae169af41f48184384dcfb93e1b66b9c00fb4 |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x2583F | 37796 bytes |
font_00_sfnt_off0001695a.bin8737e459db3d5402ae035c446cf08be247f4bfbecd27d19520b6e3cdd992e0ce |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1695A | 10212 bytes |
font_01_sfnt_off0001804d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1804D | 16792 bytes |
font_02_sfnt_off0001985f.bin89187c48f0fcc55217e2b61b52d41611dfc3c6b1f9e7ddfaad01b3aa46e39df6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1985F | 39924 bytes |
font_03_sfnt_off0001ebd4.bin8512e76b8fa4bc74c2683c3ef097201fe8791e612477ffaec4b2b840ed201676 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1EBD4 | 39444 bytes |
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