MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external links, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' further supports this. While no scripts were explicitly extracted, the PDF structure and link farm behavior are consistent with phishing or malware distribution campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://crewmak.ru/uplcv?utm_term=small+filling+machine+manual
- http://doreenindiatours.com/userfiles/file/jitamowivowave.pdf
- http://geo-equipe.it/userfiles/files/81335481104.pdf
- http://greenbrier101.com/userimages/88966294411.pdf
- https://ottopianos.nl/files/81217494699.pdf
- https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/438ced5d7c8bb50322affe7caf0e1979/surovogapubigokewumobezix.pdf
- https://mcq-exambd.com/app/webroot/ckfinder/userfiles/files/35605387074.pdf
- http://hotelamadeustorino.com/userfiles/files/84841141476.pdf
- http://ge-mak.com/files/885238349.pdf
- https://stefandes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a7b16370db---goruzefudesarixozopavis.pdf
- http://tomlitkom.ru/ckfinder/userfiles/files/kurubeboximevutawukujanon.pdf
- https://pousadamarazul.tur.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609456a359648---85702253649.pdf
- http://studiotecnicomaglio.it/userfiles/files/49275231859.pdf
- http://alexlunacoach.com/img/editor/file/sorinarawewekisijuw.pdf
- https://personalloan2u.com/wp-content/plugins/super-forms/uploads/php/files/84192e2ec1a9e1c8c441aa1d9425156e/2251610297.pdf
- https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083f36a455a9---68895232013.pdf
- http://nguyenthaotech.com/upload/files/kurix.pdf
- http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/5ks4c1jg4lqn0e8br2ks5ineb5/wevimudat.pdf
- https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c09057cedd2---miravesarewasixuvikunel.pdf
- http://m-s-g.ru/userfiles/files/31747793934.pdf
- https://cal.lighting/wp-content/plugins/super-forms/uploads/php/files/dbc8f02f6a4e95d0f3faed88c5852e85/65518382155.pdf
- https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/aauu0m8hnod3cu505m1o4mkd2k/44062745218.pdf
- https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607e825c3ae51---konisurebodenisej.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_off0000c8f2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC8F2 | 16792 bytes |
font_01_sfnt_off0000e104.bina444ae45554b812e3d17c057e2b079926c74120511c0fe4b70f3790f2d416a15 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE104 | 17100 bytes |
font_02_sfnt_off00010d61.bin6bd1b930eaa5eb51ff3315f6b74c09ebed79eda911da7b25a095efda04170328 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D61 | 10472 bytes |
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