Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fdd6365e387ad22…

MALICIOUS

PDF

123.4 KB Created: 2021-03-25 02:54:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1648db9996a6f6358f13043b49ae948e SHA-1: a6b936b85f4a58d0a564130908153f05acd30ab6 SHA-256: 2fdd6365e387ad222d2ad6dc8d36b190e7679d19ea6a6775f5355a3033d220ca
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded URLs, with the primary one being 'https://ponafet.ru/wix?keyword=over+40+hormone+reset+diet+hadsall+pdf'. This suggests the document is part of a phishing campaign, likely attempting to trick users into downloading further malicious content or visiting a compromised site. The ML classifier and ClamAV detection strongly indicate malicious intent, aligning with a phishing attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The 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.
  • Embedded URL info EMBEDDED_URL
    One 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/wix?keyword=over+40+hormone+reset+diet+hadsall+pdf
    • http://kixamugefuwa.22web.org/java_tutorial_for_android_apps.pdf
    • http://volalagokiva.sportsontheweb.net/basic_brain_anatomy.pdf
    • https://cdn.sqhk.co/vabedesi/ajcgilg/ps4_emulator_online.pdf
    • https://cdn.sqhk.co/tifomogoketu/jU6vJ1n/97918743008.pdf
    • http://melomone.scienceontheweb.net/proyecto_de_tesis_ucv.pdf
    • http://lijijuzopos.iblogger.org/l293d_motor_driver_data_sheet.pdf
    • https://cdn.sqhk.co/tisewesir/SijkAjf/vemarojopadazilugira.pdf
    • http://papakofowomida.22web.org/w10m_bridge_rectifier.pdf
    • https://cdn-cms.f-static.net/uploads/4375342/normal_6046765018d4e.pdf
    • http://folejaf.mypressonline.com/biblia_reina_valera_actualizada_2020.pdf
    • http://xufopizaxeto.medianewsonline.com/anchor_bible_commentary.pdf
    • http://lojapidabud.mypressonline.com/nomizisujirukotatuka.pdf
    • https://cdn.sqhk.co/rokunufoleti/ipiitd4/regezorige.pdf
    • https://cdn.sqhk.co/nabotogemobe/jcjgvia/danapopot.pdf
    • https://cdn-cms.f-static.net/uploads/4406166/normal_600bde107b177.pdf
    • https://static.s123-cdn-static.com/uploads/4500186/normal_5fec9726f32c7.pdf
    • https://cdn-cms.f-static.net/uploads/4459177/normal_602c8f53aa612.pdf
    • https://cdn.sqhk.co/zisubiziwu/egfVxnl/brake_shops_near_me_open_now.pdf
    • https://cdn.sqhk.co/lojadisexudo/thjgiij/monument_valley_hotels_pet_friendly.pdf
    • https://cdn.sqhk.co/pobumepova/Jegdhi7/42254557917.pdf
    • http://vugekowuzujed.scienceontheweb.net/21976073679.pdf
    • https://static.s123-cdn-static.com/uploads/4373271/normal_5ff1e9569d86a.pdf
    • http://sorebifisawug.22web.org/budgeting_in_nigeria.pdf
    • http://ripelavezomosiv.iblogger.org/94345916411.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://kuzemepusiloj.onlinewebshop.net/can_you_override_nest_thermostat.pdf
    • 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001a48a.bin
b28250018862d175c96472cbde7d4118ee0fd94f6047d38d54d78e158719b266		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1A48A 5600 bytes
font_01_sfnt_off0001b772.bin
f85c76cb5910981ac8e2cfa72bd1c7a4258676324d0302ce88eae344c59907f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1B772 11788 bytes

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