MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file identified as malicious by ClamAV and an ML classifier. It contains a significant number of external links, many pointing to disposable hosting, suggesting a link farm or phishing lure. The presence of a link farm on disposable hosting and the ML detection strongly indicate malicious intent, likely to redirect users to harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
Heuristics 6
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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 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://leonvi.ru/aws?utm_term=free+phonics+worksheets+grade+1+pdf PDF link annotation
- https://rexawalifutox.weebly.com/uploads/1/3/4/4/134458468/7204dc475fccc.pdfIn PDF document text
- https://cdn.sqhk.co/neseleko/ZdHiage/enemy_strike_3_mod.pdfIn PDF document text
- https://cdn.sqhk.co/madosodu/fUcvgg7/fisiopatologia_de_la_cirrosis_hepatica_alcoholica.pdfIn PDF document text
- http://debagigitefofo.iblogger.org/odyssey_pioneer_ddj_sx2_case.pdfIn PDF document text
- https://cdn.sqhk.co/fiporalisu/difiBqV/game_hit_zone_dead_city_download.pdfIn PDF document text
- https://cdn.sqhk.co/nezerozara/3tGiUp2/towebokujezoturidudewejur.pdfIn PDF document text
- https://dudosixe.weebly.com/uploads/1/3/4/3/134323580/4ab9e0d2bc5c76.pdfIn PDF document text
- https://tetomorefaboma.weebly.com/uploads/1/3/1/3/131384600/5572384.pdfIn PDF document text
- https://cdn.sqhk.co/digiwejasipu/ihgi5KJ/minudorarudosatog.pdfIn PDF document text
- https://cdn.sqhk.co/tajudozizif/QAezhdu/rojekesasenaromis.pdfIn PDF document text
- http://xaduwojitodefo.66ghz.com/embodied_cognition_theory.pdfIn PDF document text
- https://cdn.sqhk.co/jirowolad/hexBMji/dailysale_discount_code.pdfIn PDF document text
- https://cdn.sqhk.co/kagalitisup/5hf0gik/33276374245.pdfIn PDF document text
- https://cdn.sqhk.co/puwupasakej/gjjMIUk/crash_racers_vehicles.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://duvodix.myartsonline.com/the_purpose_of_writing_a_personal_narrative_is.pdfIn PDF document text
- http://livirava.atwebpages.com/list_of_us_airport_codes.pdfIn PDF document text
- http://suzufesa.epizy.com/57860790841.pdfIn PDF document text
- http://vikajedixased.rf.gd/phd_research_proposal_sample_political_science.pdfIn PDF document text
- http://xidaruk.rf.gd/karl_marx_bourgeoisie_and_proletariat.pdfIn PDF document text
- http://jawozamamopenis.rf.gd/how_to_backup_android_phone_before_rooting.pdfIn PDF document text
- http://zujebagita.epizy.com/sig_p226_hogue_extreme_grips.pdfIn PDF document text
- http://zaxutakizet.epizy.com/contractor_invitation_to_bid_template.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
- 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_off00010722.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10722 | 5548 bytes |
SHA-256: 671aae53962a737849c6a9ad3aa9c1d13305284b59774082de5bc43b088842dd |
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font_01_sfnt_off00011a1d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A1D | 11892 bytes |
SHA-256: 0b1412104254d0fbf64a3b32f3910d31beae00fcb27204a87480d0499d6d8d7d |
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font_02_sfnt_off0001431b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1431B | 16384 bytes |
SHA-256: 1b4378a20dc0c6838424c5aa451222226607381843c322e2c08cc180f14298f4 |
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