MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm and employs social engineering tactics, such as a fake download button and a lure to install a browser update. The embedded URLs likely lead to the download of a second-stage payload, which is a common method for delivering malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
Heuristics 7
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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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://laborke.ru/uplcv?utm_term=idm+full+patch PDF link annotation
- https://markmont.eu/editor_uploads/system/files/dasemuvawuwewigekid.pdfIn PDF document text
- http://thehedgerowchronicles.com/ckfinder/userfiles/files/donusutusotaxowibi.pdfIn PDF document text
- https://lifesmart.ro/ckfinder/userfiles/files/81693432439.pdfIn PDF document text
- http://sovaimm.it/userfiles/files/xakotuzivagaxebar.pdfIn PDF document text
- https://nakatarikaszel.pl/app/webroot/userfiles/file/1435514995.pdfIn PDF document text
- https://congnghiepxd204.vn/upload/files/10945091518.pdfIn PDF document text
- http://hacoauto.vn/upload/files/25512168267.pdfIn PDF document text
- http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16139425b299c3---vigugovibijuvemevifatom.pdfIn PDF document text
- https://jobtiara.com/files/files/45480601707.pdfIn PDF document text
- http://ty6600.com/userfiles/file/wibinijenuxofuvonejazitar.pdfIn PDF document text
- http://phongthuydotho.vn/upload/files/nejinoxijebu.pdfIn PDF document text
- http://generoussecurity.com/uploads/gazafoles.pdfIn PDF document text
- https://unitedpetexpress.unitedreloth.com/ckfinder/userfiles/files/62250326592.pdfIn PDF document text
- http://nhatminhtrading.vn/app/webroot/uploads/files/sifevopakatux.pdfIn PDF document text
- http://robbes.nl/media/files/wefoxosumuxan.pdfIn PDF document text
- https://cevhertemizlik.com/userfiles/files/movetolugemujepewowo.pdfIn PDF document text
- https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/5uhinmua69alrdvruknmhjec0a/24733255988.pdfIn PDF document text
- https://senfina.top/uploads/files/62400818075.pdfIn PDF document text
- http://thietbiotovn.com/Images_upload/files/31897407616.pdfIn PDF document text
- http://czyxchem.com/upload/files/sekidepegal.pdfIn PDF document text
- http://archpiudue.com/userfiles/files/loniziwebuvop.pdfIn PDF document text
- https://ketex.com/trcgp/ckfinder/userfiles/files/15166979013.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_off0000db51.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB51 | 17156 bytes |
SHA-256: 0f37cb004299c7e1c9ebdee18d87b67aab2fa0bf52fc87835acbfa58527dfdd3 |
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font_01_sfnt_off000107c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107C3 | 10220 bytes |
SHA-256: 7eddbfc430ab7f31657083fcde45a841cb5fd19a87d0e40b9d37b7d1615c9d56 |
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font_02_sfnt_off00011eb3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11EB3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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