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 links to external websites, many of which are hosted on compromised CMS platforms or appear to be part of a link farm, suggesting a phishing or malware distribution scheme. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this. No scripts were extracted, but the overall structure points to a malicious PDF designed to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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 http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/16135248e97021---gekapeviragufejere.pdf
- https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/1614473d3753ef---56961737446.pdf
- http://ricarda-allegra.de/userfiles/file/96821291583.pdf
- http://rulife.ru/ckfinder/userfiles/files/1197979657.pdf
- http://rebornfair.com/FileData/ckfinder/files/20210903_6269326A4E416ADD.pdf
- https://serviceelectric.ca/userfiles/file/mupibokopukulovarem.pdf
- http://szigmetal.hu/editor_up/lomamofixunekadol.pdf
- https://paulogomeslda.com/userfiles/file/vovozov.pdf
- http://seednseed.com/admin/fckfiles/file/92068085164.pdf
- http://seibyou-koujien.com/files/files/viduxotajikitidomodijim.pdf
- http://miskolciharsona.hu/pictures/file/redikijukoxufeteketen.pdf
- https://rocksoliddesigns.biz/userfiles/file/jejuraxaluziku.pdf
- http://kaus21.com/userData/board/file/85824079294.pdf
- https://centrehistoriquesndbc.com/ckfinder/userfiles/files/33857809785.pdf
- http://premo.at/userfiles/file/76201065175.pdf
- https://giga-tronics.com/userfiles/files/waxumomozavitexuw.pdf
- https://mymovingestimate.com/wp-content/plugins/super-forms/uploads/php/files/cd7bbbf4c48a6f6bea3d8330f2f7b40c/bisojajat.pdf
- http://thaoduocvn.com/userfiles/image/file/20797566893.pdf
- http://hometextiles-consultant.com/ckfinder/userfiles/files/wolin.pdf
- https://bangvetthuong.com/luutru/files/38009998257.pdf
- http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/gl2p9rnlnga76tln6tids3emv0/liwebuzejop.pdf
- http://otoozevran.com/resimler/files/83473315218.pdf
- https://biorenta.lt/ckfinder/userfiles/files/ragavagegojevuz.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=watch+harry+potter+7+online+free
- 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_off0000d577.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD577 | 16792 bytes |
font_01_sfnt_off0000ed8e.bin6948770455874d141ccdf769b8776ad39d009de17db0c62adf719effa5ce02c4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED8E | 10564 bytes |
font_02_sfnt_off000105a7.bin8a26690a1934350c97ffbf574626d022da85264c7a766aaa4b3b324c020d8752 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105A7 | 18632 bytes |
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