MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier. It functions as a link farm, containing numerous URLs that point to compromised WordPress sites and disposable hosting. These links likely lead to further malicious content or phishing attempts, consistent with a spearphishing attachment delivery vector. No scripts were extracted, but the PDF structure itself facilitates the redirection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://montaze.org/democms/userfiles/file/70156746198.pdf
- http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16097f79ebb67b---gugulikobosogokaza.pdf
- https://unicornproduction.gr/wp-content/plugins/super-forms/uploads/php/files/53aef6a75521ae8831d9d26c7e6fab7c/bumutejos.pdf
- https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/ac188dfb34aab750c10cfa1a26121c29/87273986020.pdf
- https://unitedfightalliance.com/ckfinder/userfiles/files/81500256831.pdf
- http://fine-cottage.ru/userfiles/files/jafuvesajibomo.pdf
- http://nuyewpilot.academy/wp-content/plugins/super-forms/uploads/php/files/9b33fcd682c28d3cbb1153ab2c864455/23676747511.pdf
- http://connect-senior.ch/uploades/userfiles/file/74695935182.pdf
- https://ms01bet.net/contents//files/pamumevopip.pdf
- http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/1608d793200e49---voroxewamimaluratem.pdf
- https://www.displaysdirectaustralia.com.au/application/third_party/ckfinder/userfiles/files/55251916145.pdf
- https://www.criteriainvest.com.br/wp-content/plugins/super-forms/uploads/php/files/p52b211rb7l41saf0jdjgfimtc/logobajejasotukowupetek.pdf
- http://applexin.com/ttpsea/files/file/xunokinegi.pdf
- https://pilotcenter.gr/wp-content/plugins/super-forms/uploads/php/files/j3lc9nmngkps5uitshrrs8uq2e/29707461042.pdf
- http://zetrade.cz/userfiles/file/muximatepilasawovulu.pdf
- http://www.loicadesacavem.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1607ec49bb5920---30508776058.pdf
- http://vieclamquantri.net/upload/files/zowuwivarufufokudopi.pdf
- http://anhuizpyy.com/upload_fck/file/2021-5-13/20210513083405109597.pdf
- https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072aa55c6be4---41341494615.pdf
- https://www.kngroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f427f6321d---27619838814.pdf
- https://akproauto.net/nbloom/fckuploads/file/92728116526.pdf
- https://snabavto.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bcefe427263---14672805327.pdf
- https://burstallconrad.com/editor_files/file/fofubunalawuvexapi.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=symbols+for+journey+of+life
- 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_off0001106c.binaf90270f03380b5fc403eb6d4e411f6469df7699c5f961f7923c6ebca010ab8d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1106C | 10676 bytes |
font_01_sfnt_off000128cb.bin31297005ff3dc18bb4101d74586d7e9143546c37f40c9845021fd1060f03792a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x128CB | 17996 bytes |
font_02_sfnt_off0001576d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1576D | 16792 bytes |
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