MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF file identified as malicious by multiple heuristics and a machine learning classifier. It contains numerous external links, many pointing to disposable domains or link farms, suggesting a phishing or malware distribution campaign. The document body, though partially corrupted, contains keywords related to 'Temario oposiciones administrativo del estado pdf', indicating a lure to attract users to click on the embedded malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 6
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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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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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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/award?keyword=temario+oposiciones+administrativo+del+estado+pdf PDF link annotation
- https://cdn.sqhk.co/vasibejovej/hChj1Mm/4802398877.pdfIn PDF document text
- http://dotenipago.medianewsonline.com/17624491579.pdfIn PDF document text
- https://gusumadanu.weebly.com/uploads/1/3/2/6/132695601/lalavosuporafi_lenupikujoga.pdfIn PDF document text
- http://peromopativej.mypressonline.com/how_long_to_keep_beef_jerky_in_a_dehydrator.pdfIn PDF document text
- http://uchebnoe.website/883495574554e0v7.pdfIn PDF document text
- https://cdn.sqhk.co/wiluxuko/ajev9re/people_s_postcode_lottery_app.pdfIn PDF document text
- http://sarkife.site/is_sulphur_trioxide_ionic_or_covalentkj4zd.pdfIn PDF document text
- http://lesuxofozadize.mygamesonline.org/boot_camp_workout_routine.pdfIn PDF document text
- http://forovasax.medianewsonline.com/beautiful_creatures_movie_free_online.pdfIn PDF document text
- https://cdn.sqhk.co/nisugavu/XicWbnj/dusabarijux.pdfIn PDF document text
- https://nozerazedigil.weebly.com/uploads/1/3/4/3/134309266/zolovizaxinun.pdfIn PDF document text
- https://cdn.sqhk.co/sadetujadufi/HabPie4/87088049202.pdfIn PDF document text
- https://xamorodedas.weebly.com/uploads/1/3/4/7/134714841/6ff146a.pdfIn PDF document text
- http://werojati.getenjoyment.net/what_is_the_meaning_and_definition_of_personnel_management.pdfIn PDF document text
- https://cdn.sqhk.co/bisulalu/gg0ULic/regex_cheat_sheet_bash.pdfIn PDF document text
- http://hellesypakk.online/what_kind_of_science_is_on_the_teas_test88qsu.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://viniwowosur.onlinewebshop.net/how_to_structure_a_novel_series.pdfIn PDF document text
- https://50c84cdf-c8d4-407e-a307-361b94491100.filesusr.com/ugd/f2656e_dca0e13bc83d40c4a4f5bd89cce4fe36.pdf?index=trueIn PDF document text
- https://ce2645ba-e89a-43d5-afff-5c0150757291.filesusr.com/ugd/c63dba_4d8e372c5c6748599468174810b044df.pdf?index=trueIn PDF document text
- https://09972071-4174-499b-90b1-de3619f59f53.filesusr.com/ugd/d1c05f_7fbd9fbbfb2e45dcbca00a1d3d5073a9.pdf?index=trueIn PDF document text
- https://8eccd3b7-fb20-4588-a5b5-4d8c58591879.filesusr.com/ugd/0e6328_b7c2301aad4141a1891fc2233018753e.pdf?index=trueIn PDF document text
- https://6d23287f-a15b-43b7-8d69-700c0e01f504.filesusr.com/ugd/185c00_550c1c81d3414c2a837cd3e771132a5f.pdf?index=trueIn PDF document text
- http://bugazepoja.onlinewebshop.net/tolekekuxanitafexowemuxi.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_off00010148.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10148 | 5312 bytes |
SHA-256: 82adf06f99e40138c55cd8497b44589b19b08107b391f3a7cc879ea4c3123d5f |
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font_01_sfnt_off00011341.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11341 | 12072 bytes |
SHA-256: 7170f50982098a0ee03cf9fcb14d246452e09fc64d5f24fdf3d4aa7bed80392a |
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