MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. The presence of numerous external URIs, including one with a UTM term redirector, suggests a phishing lure. The document body, though heavily obfuscated, contains metadata indicating it was generated by wkhtmltopdf, a tool often used to create malicious PDFs. The heuristic 'SE_URGENCY_LURE' further supports the phishing pretext.
Machine Learning
- Nyx PDF Classifier malicious score 0.9822
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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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://pistant.ru/uplcv?utm_term=most+antiparasitic+medications+target PDF link annotation
- http://gyarmatilovastorna.hu/userfiles/file/poneril.pdfIn PDF document text
- https://chaletsuenodesol.de/files/27276631753.pdfIn PDF document text
- http://ingegnasrl.com/userfiles/files/rixabudimikubewufajurokun.pdfIn PDF document text
- http://gabident.pl/local/userfiles/file/rupubum.pdfIn PDF document text
- http://spynet.gr/Administrator/uploads/userpics/OutPostImages/files/xexidedid.pdfIn PDF document text
- http://immobiliareborghi.com/userfiles/files/jegididonaxogim.pdfIn PDF document text
- http://resetimpianti.it/reset/public/file/volesunokorerufesodiripaj.pdfIn PDF document text
- http://gccde.com/downloads/blog/geust/files/zupodepubewototejurobed.pdfIn PDF document text
- http://xn--2o2b17g32e8xisqq.com/userData/board/file/54141787936.pdfIn PDF document text
- http://champagne-marc-chauvet.com/images/files/10774391665.pdfIn PDF document text
- https://aradovan.com/userfiles/file/85479059266.pdfIn PDF document text
- http://teamhead.net/userfiles/file/27913646655.pdfIn PDF document text
- https://thietbigas.net/media/files/lelowenenineturi.pdfIn PDF document text
- http://hit-air.pro/ckfinder/userfiles/files/79140602272.pdfIn PDF document text
- http://cpviettin.com/upload/files/18193072629.pdfIn PDF document text
- http://jingkangchem.com/upload/files/5461687531.pdfIn PDF document text
- http://www.grundys.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1614fab3ea97ad---95506835699.pdfIn PDF document text
- http://aqua4you.hu/userfiles/file/befej.pdfIn PDF document text
- http://studiotecniconuti.it/userfiles/files/zabinaxidegogebase.pdfIn PDF document text
- https://homestayhoian.vn/uploads/image/files/tetiwexekipotusufi.pdfIn PDF document text
- https://greenways.at/userfiles/file/37509185452.pdfIn PDF document text
- http://eikenhorstgroep.nl/userfiles/file/fexewul.pdfIn PDF document text
- https://b2cexpressdemo.com/userfiles/file/fomilupunaxuwejekakani.pdfIn PDF document text
- https://ises.ca/phpsites/vertical_living/uploads/file/vonodakiwozubuxok.pdfIn PDF document text
- https://labelmarket.pl/data/file/30142954665.pdfIn PDF document text
- http://rdmsrl.it/userfiles/files/62494232914.pdfIn PDF document text
- https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/a55e2b9f8109067f0d00fc05ba9b37b7/witaw.pdfIn PDF document text
- 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_off0000f540.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF540 | 10804 bytes |
SHA-256: 1bed8f22b910122c6223c30bcdfd1ad5709a0e4e0447ac0ec0ef3ee64d0ec8fa |
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font_01_sfnt_off00010df2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DF2 | 19448 bytes |
SHA-256: 6af3919401a48db727732c260094175378daecd0f28cbd67d27332ce824b4107 |
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font_02_sfnt_off00014106.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14106 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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