MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
T1059.007 JavaScript
The sample is a PDF file that employs a social engineering tactic, specifically a browser extension/update installation lure, to trick users into compromising their systems. It contains numerous external links, some of which are part of a link farm, and is flagged by ClamAV as a phishing trojan. The presence of embedded URLs and the ML classifier's high confidence score indicate malicious intent, likely to download and execute a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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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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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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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://resalured.ru/strik?utm_term=h2o+mop+x5+elite+canadian+tire
- https://cdn-cms.f-static.net/uploads/4369935/normal_5fd16408e062d.pdf
- https://cdn-cms.f-static.net/uploads/4445118/normal_5fdc6e78654dc.pdf
- https://devudupaf.weebly.com/uploads/1/3/4/8/134880603/bf1df51b631.pdf
- http://pochta-24.cc/data_warehouse_tools2kyp2.pdf
- https://cdn-cms.f-static.net/uploads/4458389/normal_5fd176967914d.pdf
- http://istlan.space/c_b_i_shankar_songsqbqwf.pdf
- https://tevukebejesa.weebly.com/uploads/1/3/2/6/132695492/fa104b2b3fb7.pdf
- http://reform-st.ru/outlining_your_novel_templaterokpq.pdf
- https://static.s123-cdn-static.com/uploads/4484364/normal_5ff37dce9f60a.pdf
- https://legaxebojidonet.weebly.com/uploads/1/3/0/7/130775342/fibabikuzekumal.pdf
- https://dorulitonen.weebly.com/uploads/1/3/1/3/131380258/9097793.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/7a81a147-9f19-4405-a618-629345100375/tumi_carry_on_luggage_with_charger.pdf
- https://d12e84a0-9808-45da-82c6-613dfe540d1b.filesusr.com/ugd/dc8a8e_ee19c952d3fe4d028cafc8e56209ae19.pdf?index=true
- https://5090c2af-253d-40c3-bfb7-942fc6db26b0.filesusr.com/ugd/0511f5_034569dc5e424a43b1015b4fdd48f882.pdf?index=true
- https://uploads.strikinglycdn.com/files/769ccab2-9e8c-49e3-b9eb-a287bd77fdde/ea_sports_ufc_3_pc_download_key.pdf
- https://6db1e9a2-4282-4636-8d41-de07325ad911.filesusr.com/ugd/d97b38_0ebfe11ebda448e5860b758caeb58236.pdf?index=true
- 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://scripts.sil.org/OFL
- 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_off0000db87.bin1612314b1124bb9a7f8452ab7174169eeb5349b02d7f6f26f616a4770357b23f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB87 | 5328 bytes |
font_01_sfnt_off0000ed9a.bin51349a940f2a2072b9e35ee3207dca3e3b3a9d9cfbe91a3470ead9cd2d2b0835 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED9A | 12776 bytes |
font_02_sfnt_off0001183c.bin3913634ec95daa34ea55d31fc213633e92460b0d84646d706317e58237d62a18 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1183C | 16580 bytes |
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