MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a high ML score and ClamAV detection. It functions as a link farm, directing users to compromised CMS uploads and disposable hosting sites, such as http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133c3afca140---94211745388.pdf. The presence of external URIs and the overall structure suggest an attempt to lure users to malicious content, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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://crysiq.ru/uplcv?utm_term=watch+high+seas+online+free
- http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133c3afca140---94211745388.pdf
- http://bijverhoeven.nl/uploads/files/74573144120.pdf
- https://ecosolar-energy.com/piceditor/file/63878647787.pdf
- https://samowar.ch/upload/file/tedokeralojikojinolu.pdf
- http://www.megasaludips.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d67e54c0f6---bukipusakenomakomowef.pdf
- https://westhygiene.hu/editor_up/47667078447.pdf
- http://hotelborgodeipoeti.com/userfiles/files/35853266065.pdf
- http://hkxhjfc.ltd/uploads/files/20210914031154.pdf
- https://angkaganjil.com/contents/files/fenutabusadoxi.pdf
- https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614347aa29356---zobelitamotogage.pdf
- http://www.mamafoundation.cz/ckfinder/userfiles/files/saguravarobuzuzi.pdf
- https://krusomying.com/data/file/rejixinebebuxufo.pdf
- https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/4a03cb639463ec153757513811f9ba7a/64231478072.pdf
- http://www.insight-assessment.com/ckfinder/userfiles/files/25673241208.pdf
- https://argentinaproduct.com/ckfinder/userfiles/files/28422401032.pdf
- http://oreoltour.ru/sites/default/files/file/kakamurizenipakefoboke.pdf
- http://daoltrading.com/userData/board/file/57131341467.pdf
- http://www.lifestaralberta.com/wp-content/plugins/formcraft/file-upload/server/content/files/161341ef99b4d4---zinidulamubalopomig.pdf
- http://trieuduong.com/images/Download/95743677822.pdf
- https://tectrongim.com/uploads/file/jiredat.pdf
- http://kwiatmetal.pl/userfiles/file/74727204092.pdf
- http://askort.pl/Upload/file/50441059988.pdf
- https://vasantviharproperties.com/userfiles/file/mifubuwudejitasiwedadapan.pdf
- https://searchlink.org/userfiles/file/51415716861.pdf
- https://torbay.ru/images/uploads/file/fokevedado.pdf
- http://irodori.kir.jp/files/file/71614642297.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_off0000de26.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE26 | 16792 bytes |
font_01_sfnt_off0000f63d.bin3a0935c0a3f375a1025839501ec6413ff86d48e0eb1348bbc23b4119763c446f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF63D | 10608 bytes |
font_02_sfnt_off00010e79.bin166aaa01c925f9a49e4e7f14bed70673264010b003542a40f834903605a082d9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E79 | 17844 bytes |
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