MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external URIs, many of which are hosted on disposable domains and appear to be part of a link farm, suggesting a phishing or malware distribution scheme. The PDF structure and embedded URLs point towards an attempt to redirect the user to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
Heuristics 5
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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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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://inwebjor.ru/uplcv?utm_term=contra+apk+free+download PDF link annotation
- https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/gt4oe74he7msste4ds4op9olr4/88279228031.pdfIn PDF document text
- http://kimandyoo.com/userfiles/file/nobunuma.pdfIn PDF document text
- http://avon-bratislava.com/files/files/70794866288.pdfIn PDF document text
- http://markjfox.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/risuf.pdfIn PDF document text
- http://cameralehiep.com/hinhanh_fckeditor/file/pexano.pdfIn PDF document text
- https://krzczonowice.pl/gfx/file/81610497235.pdfIn PDF document text
- http://physocare.com/Images_upload/files/15463842015.pdfIn PDF document text
- http://thessalonikiflights.com/files/files/kezijifexejoxofivip.pdfIn PDF document text
- https://gad-elhak.com/userfiles/file/gugafofuj.pdfIn PDF document text
- http://www.extramas.com/userfiles/files/babolipujinowigumune.pdfIn PDF document text
- http://www.ghidmariaj.ro/app/webroot/files/ckfinder/userfiles/files/tekofem.pdfIn PDF document text
- http://boissee.fr/userfiles/file/tudovedemegimufeket.pdfIn PDF document text
- https://u15.ch/ckfinder/userfiles/files/72071235401.pdfIn PDF document text
- http://rulife.ru/ckfinder/userfiles/files/fakanu.pdfIn PDF document text
- https://feng-shuiworld.com/userfiles/file/filinosugotiwegutupaf.pdfIn PDF document text
- https://rosebankprimary.co.za/inc/ckfinder/userfiles/files/pukufamaxasej.pdfIn PDF document text
- http://prospekt-rostov.ru/ckfinder/userfiles/files/61294032111.pdfIn PDF document text
- https://www.mobytec.com.br/mobytec/wp-content/plugins/formcraft/file-upload/server/content/files/16139616889c38---zipaguliwol.pdfIn PDF document text
- https://athensviptour.com/wp-content/plugins/super-forms/uploads/php/files/11b3cdaa37e832660da2b6705baef806/ropofudukige.pdfIn PDF document text
- http://globalbizkorea.com/userData/board/file/48706484947.pdfIn PDF document text
- https://vinocastillo.hu/editor_up/82141795651.pdfIn PDF document text
- http://teamwork-poetschke.com/ckfinder/userfiles/files/bivejamedizolutexatugif.pdfIn PDF document text
- https://brianhigbielaw.com/UserFiles/file/xosarobokanojorogeled.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_off0000c144.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC144 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d956.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD956 | 17988 bytes |
SHA-256: 30128e23ad515c01180cca04b8d4647ef400e85df456df0f26081c70c4756d1a |
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font_02_sfnt_off00010845.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10845 | 10440 bytes |
SHA-256: c41a00f65ad9ddeff359b264574004005e8f8a3aef84ec8d12ccf1a0d259ec2a |
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