MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous URLs pointing to compromised websites and link farms, suggesting an attempt to lure users to malicious content or phishing sites. The presence of a 'download' button lure further supports a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9970
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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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://altinay-law.com/images/file/nafavi.pdf
- https://kodcomputers.ro/2664/uploads/39206660696.pdf
- http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/ik13cgqru6hi459dind4emc5q1/lutovarijububapewefibu.pdf
- http://bjzjygj.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/wajesiterozesaz.pdf
- http://scheiden-maassluis.nl/uploads//file/zomaxuru.pdf
- http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609777a4186d7---tatexopojemo.pdf
- http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c534038cae4---13164342965.pdf
- http://auksozvynas.lt/userfiles/file/zusubarosub.pdf
- https://ethiquedevelopers.com/wp-content/plugins/super-forms/uploads/php/files/ca7442f558280bf62fbe909bf1f7c876/99817151312.pdf
- https://www.justgym.co.za/wp-content/plugins/super-forms/uploads/php/files/lgs87unn8ullsgnin0j91o4oce/liwilizirifekuzaxopa.pdf
- https://mimpiindah2.com/contents//files/kixanepejomejabora.pdf
- http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/160848efae5be7---wuseviwuxuwabugu.pdf
- https://moscowfashion.net/content/xuploadimages/file/95722841998.pdf
- http://project-lovcen.me/userfiles/file/77846453689.pdf
- http://texasstatealphaxialumnae.com/clients/f/fe/fe72632f573fdc77cca6b85875c63e8a/File/27994726657.pdf
- http://alimentosldm.com/userfiles/file/42741958958.pdf
- http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608669341344f---46223735811.pdf
- http://sanphamhanquocymy.com/uploads/files/98938269709.pdf
- https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e09fc652e67---16107690454.pdf
- https://sharzh-ufa.ru/wp-content/plugins/super-forms/uploads/php/files/32e83ab3707d61fc3e8dd710510563dc/kobaxakividuvinawinaxez.pdf
- http://www.akutrans.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090f081821fd---zuxowizomusuxowim.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=separation+notice+from+job
- 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_off0000f60f.bin9abbb3c4d920b7ee8d75735c4487f240cabd77062f141220e0500a424b6f7843 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF60F | 17124 bytes |
font_01_sfnt_off000122df.bin87d1a7b8efcd61d70714a27f0bcf1b11d85993350c9d724c0e56e94014bb1f93 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122DF | 10772 bytes |
font_02_sfnt_off00013b6b.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13B6B | 16792 bytes |
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