Malicious PDF — malware analysis report

Static analysis result for SHA-256 127bf184e1419662…

MALICIOUS

PDF

91.5 KB Created: 2021-02-27 06:15:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 981ac3122fcf08b1dec0413d99b3abf2 SHA-1: edd2a5177c2a9617251c28736276ab6277c791a5 SHA-256: 127bf184e14196628964f31b4fa0fa3a7a57b5a817cdb5a589451df56cf35cca
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, disguised as a search result for a consumer product. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://lozipotod.ru/123?utm_term=what+is+the+best+portable+car+dvd+player PDF link annotation
    • http://puzexijabin.mypressonline.com/how_to_read_apple_book_reviews.pdfIn PDF document text
    • https://cdn.sqhk.co/vagekoxes/iisYgeV/safety_toolbox_topics_2019.pdfIn PDF document text
    • http://winoxolupuvil.getenjoyment.net/how_to_get_better_mpg_5.9_cummins.pdfIn PDF document text
    • https://cdn.sqhk.co/wojipezusax/hdOha8M/nafajibixivasuxijizulok.pdfIn PDF document text
    • http://zokugorevat.mywebcommunity.org/what_can_you_eat_on_bright_line_diet.pdfIn PDF document text
    • https://cdn.sqhk.co/naxibibu/bkdjh9a/wesamafurope.pdfIn PDF document text
    • http://xolokukifimiv.sportsontheweb.net/lojedu.pdfIn PDF document text
    • https://cdn.sqhk.co/lokiwejawe/ige2wgc/44658245538.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zoluwivebiro/whatsapp_broadcast_receiver_android.pdfIn PDF document text
    • https://s3.amazonaws.com/dixaleko/apache_solr_7._3._1.pdfIn PDF document text
    • https://s3.amazonaws.com/voropa/popular_interior_design_styles_2021.pdfIn PDF document text
    • http://gisoroxirofusup.epizy.com/windows_10_install_operating_system_not_found.pdfIn PDF document text
    • https://s3.amazonaws.com/wibedubosateg/girebofuxereti.pdfIn PDF document text
    • http://xawabaxazulaga.epizy.com/python_2._7_2_free.pdfIn PDF document text
    • https://s3.amazonaws.com/polojuliragam/ansys_cfx_pre_user_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/redegelesibif/autocad_2007_tutorial_for_civil_engineering.pdfIn PDF document text
    • https://s3.amazonaws.com/fujadabez/zajimanexusukujedolas.pdfIn PDF document text
    • https://s3.amazonaws.com/liguwubore/how_to_alphabetize_column_in_google_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/fujadabez/sawovezipavoluzupixileper.pdfIn PDF document text
    • https://s3.amazonaws.com/sutawowirosuvuv/standar_nasional_akreditasi_rumah_sakit_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/fopalew/grade_4_elementary_level_science_test_answers.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.

FilenameKindSourceSize
font_00_sfnt_off00012914.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12914 5476 bytes
SHA-256: fc94a44c988eb0b9357fe55986c1fb4eab36f41d1b896e9d1011229dfe41e490
font_01_sfnt_off00013bb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13BB9 10712 bytes
SHA-256: bc3759724377422eb35d2adca702b63f78e2f5c7555cbce4fe1a7c05e0be317b

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