MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links pointing to compromised WordPress uploads and other disposable hosting, indicating a link farm designed to redirect users to malicious sites. The ML classifier and ClamAV detection strongly suggest this PDF is malicious, likely serving as a phishing lure or a distribution point for further malware. No scripts were extracted, but the heuristic findings point to exploitation and 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 https://cructi.ru/uplcv?utm_term=would+have+meaning+in+kannada
- http://bfr-bialapodlaska.pl/userfiles/file/zaxenuzolibixi.pdf
- http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/160700ff2a1cee---17212565582.pdf
- https://taechoclub.com/FileData/ckfinder/files/20210619_F9B1BD7F194B9BD7.pdf
- http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d4ef6b3a89---51628348488.pdf
- http://cmtoolsrental.com/user_img/files/vugukasirejel.pdf
- https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608ab86c47967---97994732194.pdf
- http://www.ambredore.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607633779c5ce---mibuv.pdf
- http://1970lions.com/clients/5/57/57eb30a5877ba0c7834658d164206012/File/7330310929.pdf
- http://naasschoolofmotoring.ie/fckeditor/userfiles/file/jibukites.pdf
- http://bjhtdszdh.com/v15/Upload/file/202161025757002.pdf
- http://dragoniresorts.com/userfiles/tutiserekanefu.pdf
- http://cageart.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160b42c9b72d06---89489150669.pdf
- http://www.justgiveahand.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609df433201bd---649427907.pdf
- https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ccc5eae5902---bisepepupa.pdf
- http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1609f31d01394a---fizujizipirifuni.pdf
- http://www.korayozelguvenlik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b292c006a4a---38530266845.pdf
- https://www.hospedeagora.com.br/wp-content/plugins/super-forms/uploads/php/files/3pt722kds2bsm2teno4hj4c1u5/gokobawiputuzikesisem.pdf
- https://zlatartopalovic.rs//files/71875675140.pdf
- http://remontnoedelo.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16092946fb1d45---bagovexazade.pdf
- https://asiarsolutions.com/userfiles/file/wamitezewizurakositu.pdf
- http://ghalemdi.com/userfiles/file/55062058028.pdf
- http://kondicionery-vidnoe.ru/upload_picture/file/24262354721.pdf
- https://thehideawayresortpattaya.com/userfiles/files/jigoxukimepugatopazasewon.pdf
- http://escuelasfutbol8.com/docs/files/36262114431.pdf
- http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8a445db96c---98726588186.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_off0000ecb9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECB9 | 16792 bytes |
font_01_sfnt_off000104d0.bin674e0cac26dc7457145452b0ae92b500c13b5872145d3136866209d661af7dc3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104D0 | 10580 bytes |
font_02_sfnt_off00011c83.bin3b065187078baadd93527bf58f723ff1e53cebaf07a395df08ec761698da4443 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C83 | 20232 bytes |
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