MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.001 PowerShell
The sample was flagged by a machine learning classifier and ClamAV as malicious. The heuristic 'SE_CLIPBOARD_COMMAND_LURE' indicates the document instructs the user to copy and paste content into a shell, a common technique for executing malicious commands. The presence of numerous external URLs suggests a phishing or credential harvesting attempt, with one URL specifically mentioning 'win8_pro_product_key'. No scripts were extracted, but the overall pattern points to a social engineering attack designed to trick the user into executing a payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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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Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LUREDocument tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
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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://medvor.ru/uplcv?utm_term=win8+pro+product+key PDF link annotation
- http://lsbwg.com/ckfinder/userfiles/files/20210918/0614394140.pdfIn PDF document text
- https://tonthephunglan.vn/upload/files/pevul.pdfIn PDF document text
- http://kemnhapkhau.com/upload/files/96542036774.pdfIn PDF document text
- http://diamant-x.sk/UserFiles/file/1019698269.pdfIn PDF document text
- http://impressivetravelvietnam.com/upload/files/16023259268.pdfIn PDF document text
- http://webinaris.eu/ckfinder/userfiles/publics/files/68881407822.pdfIn PDF document text
- https://gretajensen.com/ckfinder/userfiles/files/95505544196.pdfIn PDF document text
- http://madmojo.com/fckupload/file/7236983494.pdfIn PDF document text
- https://dimensioninteractive.com/WYSIWYGImage/file/90735563138.pdfIn PDF document text
- http://186086.com/upload/files/ruzamaxivenalofupejinex.pdfIn PDF document text
- http://homearcky.nl/userfiles/file/64489222802.pdfIn PDF document text
- http://hkacca.com/userfiles/pekaxivimofapazopupexi.pdfIn PDF document text
- http://arohitourandtravels.com/userfiles/file/83415212829.pdfIn PDF document text
- http://agisinfo.ru/uploads/content/files/32568464754.pdfIn PDF document text
- http://55pluscommunityspecialist.com/userfiles/files/83873326350.pdfIn PDF document text
- http://pevak.info/UserFiles/File/58171777339.pdfIn PDF document text
- http://www.horakgolf.cz/ckfinder/userfiles/files/jivujobemile.pdfIn PDF document text
- http://fuku-zou.com/userfiles/file/2156188788.pdfIn PDF document text
- https://locktactyuma.com/ckfinder/userfiles/files/25408161129.pdfIn PDF document text
- http://daiichilogistics.com/uploads/news_file/fixikulopafa.pdfIn PDF document text
- http://aibasylhet.edu.bd/app/webroot/ckfinder/userfiles/files/95261565364.pdfIn PDF document text
- http://alarcon-v.com/editor_upload_image/file/xerukirizogidojuxe.pdfIn PDF document text
- https://408of53crownstreet.com/assets/media/files/15803178555.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_off0000d2b2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD2B2 | 19224 bytes |
SHA-256: be3ff43b48fdf8f790a0d67c2f4b12593478dcfc4d272dfc6076086ced7a5391 |
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font_01_sfnt_off00010561.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10561 | 10640 bytes |
SHA-256: 5fe81d64bf4f7b3b78e2f1f57690591069cf86d50ba1b659379f1f1bc8a36f49 |
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font_02_sfnt_off00011de7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11DE7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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