MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ML and ClamAV as malicious, specifically as a phishing or trojan. It contains numerous embedded URLs that point to various domains, many of which appear to be compromised or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using numerous distinct hosts for a link farm, suggesting an attempt to obscure the malicious intent or distribute the risk. The presence of a 'utm_term' parameter in one of the URLs suggests a tracking mechanism for phishing campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://huntic.ru/uplcv?utm_term=crazy+rich+asians+torrent+magnet
- http://winfielddeli.com/ckfinder/userfiles/files/20225968704.pdf
- https://parquesanalbertohurtado.cl/ckfinder/userfiles/files/guwusujakoj.pdf
- https://varbackaforskola.se/ckfinder/userfiles/files/durub.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614b1a8637d48---gapaliruvajoxobat.pdf
- https://cremyco.com/app/webroot/docs/file/bafidasolejoditej.pdf
- http://jszl-rolls.com/filespath/files/20210918021539.pdf
- http://elma-itc.ru/!upload/files/tolom.pdf
- http://yucehukuk.com/resimler/files/roxekokapikuwotegawewomed.pdf
- http://xn--hh0b97d8is16e.com/userData/board/file/debalorikawolizelinigex.pdf
- http://geyikkimya.com/userfiles/upload/file/57566146630.pdf
- https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/1614db9fabc2e1---pevibopovidazizizad.pdf
- http://msinziniering.com/userfiles/file/vodozoferuzubaloxuk.pdf
- http://tomaszfilipczak.pl/userfiles/file/fagazi.pdf
- http://daithanhnam.com/upload/files/tolunogamatisivono.pdf
- http://bulmarconsult.com/files/11376492606.pdf
- https://avukatwebsitesi.trakyasoft.com/upload/files/48333249918.pdf
- https://km2804.com/ckupload/files/sidima.pdf
- https://www.shipgo17.com/plugin/ckeditor/ckfinder/userfiles/files/20732520443.pdf
- http://dae-young.kr/upload/fckeditor/file/putenowewigasadib.pdf
- http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614c444155200---86665158909.pdf
- http://studiocinti.eu/userfiles/files/12812592700.pdf
- https://amt-alarmy.pl/userfiles/file/3025975580.pdf
- http://gzperson.com/uploadfile/files/91720227056.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_off0000adee.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xADEE | 16792 bytes |
font_01_sfnt_off0000c600.bin3584fdf49ce97627ca335825010b2155a3078f3c901aec101defab44094293a7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC600 | 14740 bytes |
font_02_sfnt_off0000eae9.bin3bebd5725d1fd33a7577a657e405b7d0a39bdf6ef45958cd03b147f29a84b3c3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEAE9 | 10836 bytes |
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