MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of external links, many hosted on disposable domains, indicating a link farm designed to direct users to potentially malicious content. ClamAV and ML classifiers identified this PDF as malicious, specifically flagging it as a phishing trojan. The embedded URLs and the heuristic findings strongly suggest this document is part of a phishing campaign, likely delivered as an attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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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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://ponafet.ru/123?utm_term=frankenstein+1818+text+penguin+classics
- https://zevexeduj.weebly.com/uploads/1/3/0/8/130874566/7542967.pdf
- https://rusolozotiwar.weebly.com/uploads/1/3/5/9/135992237/3415937.pdf
- https://jetisinodab.weebly.com/uploads/1/3/5/3/135335938/4303366.pdf
- http://bidizujimon.getenjoyment.net/44029584069.pdf
- https://cdn.sqhk.co/mibemofega/xOii4jh/pokemon_emerald_emulator_master_ball_cheat.pdf
- https://cdn.sqhk.co/nazutupim/Ljegi7x/interstellar_complete_soundtrack_download.pdf
- https://cdn.sqhk.co/jenojigise/bG0gchd/weketizunosenaz.pdf
- https://wetenonuvodipu.weebly.com/uploads/1/3/5/3/135321676/kukexo.pdf
- http://vurujupafowutox.mypressonline.com/string_theory_david_foster_wallace_review.pdf
- http://xufelaketodo.getenjoyment.net/how_old_is_my_ruud_gas_water_heater.pdf
- http://sevibifodome.getenjoyment.net/how_to_do_a_hard_return_in_indesign.pdf
- https://dexajaxalujum.weebly.com/uploads/1/3/1/8/131857565/duzulez_newebakajavemi_womifidiwesud.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://5634f520-c25d-421d-ab67-3d94505d13cb.filesusr.com/ugd/1b85ab_b1bdfacc478e4bbb8def354363638568.pdf?index=true
- https://uploads.strikinglycdn.com/files/602cf5d8-af98-49d0-80a2-36658295de7a/is_pokemon_better_on_switch_or_switch_lite.pdf
- https://uploads.strikinglycdn.com/files/8003e20c-ba97-45c9-ba91-929590fdda5b/how_to_replace_whirlpool_refrigerator_water_filter_3.pdf
- https://uploads.strikinglycdn.com/files/cd8c7eb4-1e48-415b-83c0-f9de68fe705d/what_is_work_measurement_and_method_study.pdf
- http://xifeloj.onlinewebshop.net/the_night_before_christmas_movie_actors.pdf
- https://104e0e48-a4c2-4a03-8647-06ef64d4e6ac.filesusr.com/ugd/e2c6c1_e6880c34fadb41e3a8581c624db3c472.pdf?index=true
- https://bb55feb6-a0c4-48ae-8f72-aea2c45912f8.filesusr.com/ugd/b9801a_9e00ddb663a44c2990656ff6f0fc3327.pdf?index=true
- https://237a2310-9536-43ad-add1-fe73b840a51a.filesusr.com/ugd/8b319d_108c27db56d241eda7673f2929c5c1a9.pdf?index=true
- https://e22e8d81-f41f-4d51-abb1-39b19d2d32bb.filesusr.com/ugd/96bf9d_bc2dc98eea9149beb456cb70aad520f8.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
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000111f1.bin41cb146a9d2c3f67067679676b7b7932bf46eb78e58b31a7aa77ed2a2b0344f8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111F1 | 5204 bytes |
font_01_sfnt_off000123bc.bin9dc53b9cd61e9658d81bd99d60d049c785ec439779125b5e256605627509bf56 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x123BC | 10528 bytes |
font_02_sfnt_off000147cc.binb50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x147CC | 4324 bytes |
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