MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF document flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. It contains multiple embedded URLs, with one pointing to 'vilenefex.ru', suggesting a phishing or malware distribution attempt. The document body is heavily obfuscated, but the presence of external URIs and the overall heuristic firings indicate a malicious intent to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 5
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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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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://vilenefex.ru/wix?keyword=balancing+decomposition+reactions+worksheet PDF link annotation
- https://cdn.sqhk.co/rovukupovumo/HD5ggjj/94444804605.pdfIn PDF document text
- https://cdn.sqhk.co/jawubibegeba/ihhdiaZ/basic_linux_commands_tutorial.pdfIn PDF document text
- https://virutabadipepuv.weebly.com/uploads/1/3/1/3/131398083/689800.pdfIn PDF document text
- http://foramodosug.mygamesonline.org/animal_farm_next_to_me.pdfIn PDF document text
- http://tosiwegijulu.iblogger.org/android_studio_windows_10_hyper-_v.pdfIn PDF document text
- https://pivuwolugere.weebly.com/uploads/1/3/4/0/134041199/87cd0ea42d7d.pdfIn PDF document text
- https://bafokaxaxex.weebly.com/uploads/1/3/4/8/134881351/wumogo.pdfIn PDF document text
- https://cdn.sqhk.co/toledexipez/dxghjhM/58763269430.pdfIn PDF document text
- https://cdn.sqhk.co/zixifazod/Ygghjge/cake_dowel_cutting_tool.pdfIn PDF document text
- http://ketaton.mywebcommunity.org/38812473461.pdfIn PDF document text
- http://xazoxaruxilovo.iblogger.org/instagram_for_android_4._4._2.pdfIn PDF document text
- https://zajedipadere.weebly.com/uploads/1/3/1/3/131398131/3036105.pdfIn PDF document text
- http://benaletuzulug.sportsontheweb.net/18856885969.pdfIn PDF document text
- https://cdn.sqhk.co/moxelutedoje/hcOaha8/37404673523.pdfIn PDF document text
- https://makifilibavik.weebly.com/uploads/1/3/5/3/135383918/dc690.pdfIn PDF document text
- http://suvuxivenorum.mypressonline.com/sat_subject_test_answer_sheet.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/b14c0549-550a-46cc-9f76-3233d84681c8/crochet_patterns_for_baby_blankets_with_animals.pdfIn PDF document text
- http://fopebuzab.epizy.com/heart_piece_guide_ocarina_of_time_3d.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c3c56818-ab24-4128-85f0-c0a0c5992fba/28019512742.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/852dcc1f-b829-4eb5-8734-da4e7e290fc6/tekexazazawemevibisirupo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6325d09e-cee9-4f73-9d20-3a89c39fc729/alpine_x305s_bluetooth_setup.pdfIn PDF document text
- http://gibonoxemibete.rf.gd/66053765586.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/37920191-bdaf-44ec-b849-1c31f8ab57bc/78973481474.pdfIn PDF document text
- http://kajonamopesubom.rf.gd/36847639749.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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f974.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF974 | 5692 bytes |
SHA-256: 7fb05c40020dde202c2787e96ff02067e29c6e6a00e6d2f1750d49ab0b4e2a8d |
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font_01_sfnt_off00010cb1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CB1 | 10780 bytes |
SHA-256: 30985331995bc2d99ced22120574b0f55eed2e2ac54785310aed517c58ee6092 |
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