MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains numerous links, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to potentially harmful sites. The presence of these links and the overall structure strongly indicate a phishing or redirection attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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 https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f6e903b712---pamowoperizopexosexumuxo.pdf
- http://tatugigo.com/ckfinder/userfiles/files/tovobukonavateresiref.pdf
- http://top-rubber.com/admin/fckeditor/editor/filemanager/connectors/upload/file/59078108276.pdf
- https://angkagenap.com/contents//files/wazokipuz.pdf
- http://hodori247.com/uploads/files/58152381177.pdf
- http://dnt-mayak.ru/content/File/nozaxezotezakizevepu.pdf
- http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a2b7e9c0030---menimedobidonijekafibemoj.pdf
- https://blokhol.com/upload/files/xufosad.pdf
- https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/cj6g08ao6e67k7v1q4rnn2u77n/xatefopazaveg.pdf
- http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609ef42cccb14---rowiwanubirerixularo.pdf
- http://df-2.de/images/daten/file/69596271853.pdf
- http://www.dawnrotaryclub.tw/UserFiles/files/wotanulivawunatevagavuwos.pdf
- http://elcampoeco.org/FCKeditor/file/zidikerixazi.pdf
- http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5478270bd2---23478015792.pdf
- https://qualitylightsolutions.com/wp-content/plugins/super-forms/uploads/php/files/65bfb4be56430d23bd79943dca4b8e9f/43462449951.pdf
- http://vagtteam.dk/userfiles/Files/5072836953.pdf
- http://antifftech.com/uploadfile/file///2021050301250589.pdf
- http://ski-experience-japan.com/images/blog/file/30019417086.pdf
- https://goldmenu.com/userfiles/file/44025848253.pdf
- http://fszhenjia.com/upfolder/e/files/20210708101331.pdf
- http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e5ca8d5cc0---ketedijit.pdf
- http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/1606f30bd6dae9---29638510765.pdf
- https://www.db-ynox.fr/ckfinder/userfiles/files/dikirogakubadikamadesuk.pdf
- https://muahohangnhat.com/app/webroot/uploads/files/82824101472.pdf
- https://revapackers.com/wp-content/plugins/super-forms/uploads/php/files/8om3uqothr9vo9np31o4ccl6oc/somilirapatokuw.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=bankers+adda+current+affairs+july+2019+pdf
- 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_off0000be12.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBE12 | 16792 bytes |
font_01_sfnt_off0000d624.bin18ed8b8f335b9c181f0334b8c456e49edcaba5bd06d3b082a968e0f3381652b7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD624 | 17692 bytes |
font_02_sfnt_off000103c2.binbdf8df7d539f87920be299649f60994ee3df58a6f3e66c5a63594f151aa23c20 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103C2 | 11444 bytes |
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