MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a heuristic firing for PDF_SEO_LINK_FARM, indicating it's part of a link farm designed to attract users searching for specific content like 'case files neurology pdf free download'. The presence of an external URI and a ML classifier flagging it as malicious further supports this. ClamAV also detected it as Pdf.Phishing.Trojan, suggesting a phishing or trojan distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9950
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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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://midufefew.ru/award?keyword=case+files+neurology+pdf+free+download
- https://cdn-cms.f-static.net/uploads/4389824/normal_603911b453b8f.pdf
- https://cdn.sqhk.co/rufadexu/lX6iaI6/guess_the_actor_game.pdf
- https://cdn-cms.f-static.net/uploads/4426410/normal_603c86156aabb.pdf
- https://cdn.sqhk.co/bisadidizi/Ahgiakz/lifecubby_classroom_app.pdf
- https://cdn-cms.f-static.net/uploads/4412895/normal_6038355348f8c.pdf
- https://cdn.sqhk.co/vujejanar/gdf7pSk/baby_lyrics_song_by_joeboy.pdf
- https://cdn.sqhk.co/mudemodox/gemGCXi/93146911960.pdf
- https://cdn.sqhk.co/gudijupimeb/8bkhghR/bimevonaja.pdf
- https://cdn.sqhk.co/miropefaneka/G0rgi11/learn_spanish_free_online_audio_lessons.pdf
- https://cdn.sqhk.co/xunixenovapi/MKib9s2/tobinibawi.pdf
- https://cdn.sqhk.co/rabuvimi/hLnhg23/pulsar_dual_fuel_generator_home_depot.pdf
- https://cdn.sqhk.co/talokelom/giFngit/tutorial_de_comic_life_3.pdf
- https://cdn-cms.f-static.net/uploads/4379987/normal_60126e9f496ff.pdf
- https://cdn-cms.f-static.net/uploads/4378619/normal_6033c3d202089.pdf
- https://cdn.sqhk.co/riwajamugem/iafnphf/double_dragon_trilogy_apk_data_mod.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://24a70dd4-b549-4b9e-9c0a-6eea45ab85ad.filesusr.com/ugd/ab0c63_2091c3fa38944190bc691d61f6eeb08a.pdf?index=true
- https://35e1cc1d-5f6c-4a41-9b1b-b9ae8dddc97a.filesusr.com/ugd/351eee_e48fa167785342b88d4fbd054fce7a4d.pdf?index=true
- https://s3.amazonaws.com/ravuxudibure/23824441099.pdf
- https://s3.amazonaws.com/bezegoluzose/22965332416.pdf
- https://40e214c1-1950-44e8-a195-e2c6eeb23253.filesusr.com/ugd/a517f4_f181dd8126774c8ca5ef8c0c796926fc.pdf?index=true
- https://s3.amazonaws.com/sivanira/70704294243.pdf
- https://41be308f-8a64-4dec-8b30-4937605be974.filesusr.com/ugd/f042fe_926e66fa494c4f0db344743687fd483f.pdf?index=true
- https://700ceb37-22d2-47c5-9888-d858af679aee.filesusr.com/ugd/c345b0_aa4252a9d6834b2182b1f1bbacd7dbd6.pdf?index=true
- https://s3.amazonaws.com/fasudikek/fish_culture_project_report.pdf
- https://s3.amazonaws.com/rujimidujek/nuzekagifedajonipidipina.pdf
- https://a540aa65-2eb1-4ac3-86d0-bf6a54daac96.filesusr.com/ugd/2d797c_eee0eb0b2f454df5b66b8f17b17a90c6.pdf?index=true
- https://28546a20-d0cc-4b82-bb4f-6711990cd5a3.filesusr.com/ugd/0bcf16_2cc5ec7956e94c519bc5f7ec07d4182c.pdf?index=true
- https://b3709dad-42f4-4621-9b7e-74d31ca978cd.filesusr.com/ugd/f91cf1_5a8c7fd3ae6d446586db38c5a778cfdf.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_off0000f55c.binb0adf7fa6209925e977559ca1a8528c1dcf66cc2e465b2c15788af40fa1a4b44 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF55C | 5308 bytes |
font_01_sfnt_off0001078d.bin001816c741e4eccf7e7058ae90215fb145d2a20054776b8a1a1377913b44a693 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1078D | 10800 bytes |
font_02_sfnt_off00012cb6.bina2ae3ae010fc9d233b854917841a89f72dd7fdf4cd45890bb076eddb464b4872 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12CB6 | 16104 bytes |
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