MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised or disposable hosting. The heuristics indicate a link farm designed to redirect users, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly suggest malicious intent, classifying it as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://cattaneoarchitetti.it/userfiles/files/kevudelokelimukon.pdf
- https://ghnservizi.com/file/16688562920.pdf
- http://marinda.ru/pics/images/file/87112082790.pdf
- http://zaintik.org/files/galeria/files/zefisaruziwigu.pdf
- http://jongauger.com/userfiles/file/14965967421.pdf
- http://dobre-jaja.com/Upload/file/61591681965.pdf
- https://tramhuonghanoi.vn/upload/files/roneriwifulisikafuvubibi.pdf
- http://www.mananthavadynorbertines.org/www/js/ckfinder/userfiles/files/77755327359.pdf
- https://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/1612eb86f556ba---nopozasosavadejapug.pdf
- http://biogenetec.tw/image/files/20210917_115341.pdf
- http://windowsplusllc.com/ckfinder/userfiles/files/78371363291.pdf
- https://parquesanalbertohurtado.cl/ckfinder/userfiles/files/derolopexidokopelijoxitiw.pdf
- http://rileyillustration.com/images/agency/files/99718964111.pdf
- http://budka39.ru/files/71738919869.pdf
- http://yanartekstil.com/firma/files/rofitapajigipazujuw.pdf
- http://testsitehq.com/ckeditor-ckfinder-integration/uploads/files/netaxuperelofuxofifi.pdf
- http://iamsoldierfit.com/wp-content/plugins/formcraft/file-upload/server/content/files/161483c92c8c50---wuzadu.pdf
- http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16148b19d8c6da---58931980562.pdf
- https://pui-vital.ro/msg_media/file/dikewosasuburire.pdf
- http://xn--90aoj0agf7cq.xn--p1ai/uploads/files/73084604936.pdf
- https://www.pirkitpadangas.lt/ckfinder/userfiles/files/muwezulaxulavitowirokuvud.pdf
- http://wawa757.com/uploads/files/79772982781.pdf
- http://mama-care.com/UserFiles/file/95861641212.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=top+10+android+emulator+for+windows+7
- 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_off0000c383.bin8a0604d51eca774711c35a528f98a846ac70cfb80e600019e7a3dd16b34bac37 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC383 | 17216 bytes |
font_01_sfnt_off0000f07c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF07C | 16792 bytes |
font_02_sfnt_off00010893.bin45a41986dcfdb011b2b9ef7bc0217727b53aa4a82cd73c223665749a6e4d7656 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10893 | 11032 bytes |
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