MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by a machine learning classifier and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains numerous links, many pointing to compromised CMS upload directories or disposable hosting, suggesting it functions as a link farm. The embedded URLs and the nature of the heuristics indicate a phishing or SEO manipulation attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/634ektehcurjmd6gb83iqivp42/webefev.pdf
- http://anhuishangbiao.com/upload_fck/file/2021-5-29/20210529183710541441.pdf
- https://medsplus.us/admin/images/file/62434748832.pdf
- http://zechnerbau.at/images/content/files/gigovet.pdf
- https://eliteswimmingpoolsinc.com/wp-content/plugins/super-forms/uploads/php/files/r2tb4413ss0j9vqo4oi3va29n7/51160209518.pdf
- https://binarbaid.com/public_html/userfiles/file/2212480084.pdf
- http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608773f20a58b---gozelekabunokiliwodep.pdf
- http://stardentalcare.org/userfiles/file/wizibafitodiruzaw.pdf
- https://denizlihorozu.com/resimler/files/7693741716.pdf
- https://www.nestroots.com/wp-content/plugins/super-forms/uploads/php/files/p91r4e4k2mdqnqa02gfmaeffa3/21100823337.pdf
- https://costumeworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e70902170e---vimovoj.pdf
- https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/c57ae69e890b65d201aa4126b051d53e/megulifakidaxesadosozula.pdf
- http://recrute.fr/files/files/pemisadumozakuridevo.pdf
- http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607c0171127f4---62667074914.pdf
- http://php-lounge.de/userfiles/file/27302544449.pdf
- https://299-45.com/CKEdit/upload/files/vinabinadon.pdf
- https://kitapkapla.com/upload/ckfinder/files/podagat.pdf
- https://www.prestigeautobody.com.au/wp-content/plugins/super-forms/uploads/php/files/8e03e33cb53f58879012870754fe5c0b/12050757822.pdf
- http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16083c31027174---bunoxubi.pdf
- https://vernadoc.com/wp-content/plugins/super-forms/uploads/php/files/c616d045f8442a957ec6b37534491439/62506262155.pdf
- https://carrieres-pierre.com/userfiles/file/tuvirafewusevemipu.pdf
- http://adacu.org/userfiles/file/20210621163218.pdf
- http://springbook.no/files/56548263217.pdf
- http://helloshoppingnepal.com/userfiles/file/jasurinokopi.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=poetic+devices+personification
- 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_off0000f678.bin1281d8e407a7b730e5deb0d6e4adec9d2e4ed056c751607d2bb283deff2712a3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF678 | 10636 bytes |
font_01_sfnt_off00010efd.bind95a532f7bb0f9185188354a446da064a767a471474d216b1cef6b1c73d6a03f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EFD | 16692 bytes |
font_02_sfnt_off00013a18.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A18 | 16792 bytes |
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