MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of links, many pointing to compromised CMS uploads and disposable hosting, indicating a link farm. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution. No scripts were extracted, but the structure and URL patterns are indicative of a malicious campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://dailyliving.nl/ckfinder/userfiles/files/jodesumegaguxubapovixagu.pdf In PDF document text
- http://toshiteriyakiburien.com/uploads/files/pasababunekojevamodom.pdfIn PDF document text
- http://local-minicab.com/survey/userfiles/files/3971466478.pdfIn PDF document text
- http://thanglong.vn-greenenergy.com/ckfinder/userfiles/files/42598758781.pdfIn PDF document text
- https://bcm.es/files/galeria/files/33027862502.pdfIn PDF document text
- http://phutungquanghieu.com/app/webroot/files/ckfinder/files/dusomuvagaj.pdfIn PDF document text
- http://chinamakina.com/userfiles/file/zulewuj.pdfIn PDF document text
- http://baove24h.org/upload/files/sunejaloju.pdfIn PDF document text
- http://vietnam-intraco.com/webroot/img/files/pakoxilobapi.pdfIn PDF document text
- http://congseng.com/uploadfile/files/nuvezoxaxefo.pdfIn PDF document text
- http://mtjjt.com/2013/upload/article/files/210909085646251744gjbnd.pdfIn PDF document text
- https://kanat.com/upload/ckfinder/files/76488353781.pdfIn PDF document text
- http://av-jet.ru/userfiles/file/feripogubulidos.pdfIn PDF document text
- https://skykharchono.mn/editor/files/zirufizesuzo.pdfIn PDF document text
- http://kennyre.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cfbd30fa7b---51083156956.pdfIn PDF document text
- http://keitbg.com/images/files/dulidadi.pdfIn PDF document text
- https://trichynext.com/wp-content/plugins/super-forms/uploads/php/files/ad6d42a04dc2a769dd6073804a52124d/42468249265.pdfIn PDF document text
- https://lufty.cz/UserFiles/files/goxoden.pdfIn PDF document text
- http://smolninskayahotel.com/userfiles/file/fexopamadusawomililusifot.pdfIn PDF document text
- https://drhuanghair.com/uploads/files/202109020558494826.pdfIn PDF document text
- https://vernadoc.com/wp-content/plugins/super-forms/uploads/php/files/54e93d04ebcdd38cd2c7221773d5b161/8061271551.pdfIn PDF document text
- https://zlatartopalovic.rs/files/33163628727.pdfIn PDF document text
- http://webbyshoe.com/fckeditor/userfiles/file/figewovabokulire.pdfIn PDF document text
- https://skopjemuzikon.pmgrecordings.com/ckfinder/userfiles/files/51085181622.pdfIn PDF document text
- http://rickgrisolia.com/userfiles/files/linizezelesosidofinojasog.pdfIn PDF document text
- https://mkontakt.com/dat/file/99863637950.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=p20+android+11PDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000cec9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCEC9 | 19012 bytes |
SHA-256: ad20f5284def2e98862120bcefde0cb649fb1ae6c780124e28dad43b9c0f719f |
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font_01_sfnt_off000100e9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100E9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011900.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11900 | 10092 bytes |
SHA-256: d2fcd79556829a9c633c2b3cfec33d7ab8f51869d08f35cb427e07a0a848d853 |
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