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. It contains numerous links pointing to compromised CMS uploads and disposable hosting, suggesting a link farm designed to redirect users. The PDF structure and embedded URLs are indicative of a phishing or malware distribution campaign, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://chaitraglaze.com/uploads/xafarupidafe.pdf
- http://www.chicagoalphas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160de20992346b---22343915943.pdf
- http://tangiahoang.vn/Images_upload/files/zeluwevaganosimidoz.pdf
- https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/16072c386a6fb5---zuviturana.pdf
- https://www.retake.dk/ckfinder/userfiles/files/lululamokakezifosewe.pdf
- https://vaitinhdien.com/app/webroot/upload/files/fujizexopusejo.pdf
- http://szm.hu/userfiles/file/logekulafuladujorositaze.pdf
- http://lblussana.it/images/file/vefomopa.pdf
- http://ei-windykacja.pl/upload/file/67635194491.pdf
- http://ossokahve.com/upload/file/69071896135.pdf
- https://mobilityservices.it/file/26945480588.pdf
- https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/261906a7117cc09744f53c8e5f6f61d0/43170670110.pdf
- http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/16073b22dbebff---68097815715.pdf
- https://abhimaninteriors.com/ckfinder/userfiles/files/60773155564.pdf
- https://e-ssuances.com/ckfinder/userfiles/files/19916165120.pdf
- http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b66fdecc4b2---purisedonenil.pdf
- https://xigmatek.com/upload/files/32314852645.pdf
- https://arichaindia.com/userfiles/file/tonemozemagitifexenebinif.pdf
- http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160b7f22ecf026---divafajigitimazekibi.pdf
- https://qwert5.com/psum/admin/userfiles/file/33829067230.pdf
- http://clasesholandes.com/userfiles/file/nunafovipotezarivatev.pdf
- https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160fd490d1ebd1---vubeninamemipukusimof.pdf
- http://rajskiewakacje.pl/userfiles/file/rozenopotugukelagoradi.pdf
- http://dzbnf.com/upload/file///jodijamezikirarogedaz.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=operaciones+con+numeros+reales+complejos+y+expresiones+algebraicas+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_off0000cc14.bin29fd286c02acfbd5e20485ccee23257794408ea1b79a93b2fdcae6b37d2c4324 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC14 | 18836 bytes |
font_01_sfnt_off0000fca6.bin74f3cb30447799a5e6341cda2f47985dd34cb463b224050edc01d8f3a3bbb79f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCA6 | 11476 bytes |
font_02_sfnt_off00011757.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11757 | 16792 bytes |
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