MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links to compromised websites and disposable hosting, indicating a link farm designed to host malicious files. The presence of a 'download button' heuristic further supports the phishing lure. ClamAV detection and ML classification confirm the malicious nature of the document, likely serving as a phishing attachment to deliver a payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://phayaotechno.com/UserFiles/File/44998511867.pdf
- http://codienlanhtrangia.com/Images_upload/files/26172409149.pdf
- http://agriturismoilnoceto.com/userfiles/files/58077081021.pdf
- http://ancient-theater.gr/media/file/namaruxexawalavorib.pdf
- http://botosani.ro/img/uploads/file/jozopa.pdf
- http://www.hebrewforreadingcomprehension.com/content/76755751995.pdf
- https://tonymusic.se/UserFiles/files/49488243021.pdf
- http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/161319a1147755---zilavubibevusabifafer.pdf
- http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161371a3654491---98951760690.pdf
- http://market-oborudovanie.ru/upload/file/72658301052.pdf
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613f8ada70f8a---jusefomujojipifizug.pdf
- https://novitas.ro/files/dabezepugetojoz.pdf
- http://a899.net/userfiles/file/lefiralupewimumekifev.pdf
- http://gpp300.fr/userfiles/file/19741162292.pdf
- https://mabuksusu2.com/contents/files/ritovewe.pdf
- http://old.bgk-meshkova.com/ckeditor/ckfinder/userfiles/files/91453570285.pdf
- http://megaprestige.ru/uploads/files/rixugivuzexi.pdf
- http://hotechike.com/files/files/sutebilagugopebovifanu.pdf
- https://wineuniverse.us/userfiles/file/kutogija.pdf
- https://lodoshosting.com/calisma2/files/uploads/wovuzofepubofidekunaxex.pdf
- https://mgc.to/sites/web/upload/files/lalakewinovamijijugawik.pdf
- https://motty-etai-sharon.com/files/files/57041906424.pdf
- https://oancora.com/ckfinder/files/fudekuxifaxowazegu.pdf
- http://livingkaneohe.com/userimages/mavitedagedurozidivafutu.pdf
- https://bepxuyenviet.com/upload/files/18591696553.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=hack+mech+wars
- 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_off0000d71e.bin130b1930185bf5d1deb18899ec8c923faeb8180378e4f40ff2f9fbca2ef902f8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD71E | 17784 bytes |
font_01_sfnt_off000105bd.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105BD | 16792 bytes |
font_02_sfnt_off00011dd4.binf108627a4787676f62f69d8df0b190458b3e3f7f69eed3cfb5735b78d51cc7be |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11DD4 | 10204 bytes |
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