Malicious PDF — malware analysis report

Static analysis result for SHA-256 33e11e35bed732ff…

MALICIOUS

PDF

80.4 KB Created: 2021-03-23 11:51:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2fb646a8ae3ce1034ad0c28a9636ea01 SHA-1: 41f9d889bf2458c5dc49c66e0591d17db012de16 SHA-256: 33e11e35bed732ff8b90f290cdb1c6ab58b02e31cead3bdfe0f4164af07cea79
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains embedded URLs that point to external websites, suggesting a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a malicious document designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://soxebez.ru/wix?keyword=nutrisystem+frozen+meals+in+stores
    • http://interbank.link/pocket_tajweed_quran_with_english_and_transliterationkqjh0.pdf
    • http://reweder.site/savadazijopinomukeh2r37.pdf
    • http://murerejomijuv.22web.org/types_of_ocean_thermal_energy_conversion_systems.pdf
    • http://nunovoxiwanafuz.getenjoyment.net/katefir.pdf
    • http://freedate18.xyz/lala_ramswaroop_e_calendar_20208k6vi.pdf
    • http://biggymstoe.com/what_is_meaning_of_web_servicesfp5z0.pdf
    • http://kelirajisob.66ghz.com/93519423426.pdf
    • http://sanaletetifon.iblogger.org/how_long_does_it_take_to_fully_charge_a_solar_watch.pdf
    • http://lestyprin.online/75961899646uswpv.pdf
    • http://beririka.scienceontheweb.net/pijekatelonoturelusobunin.pdf
    • http://mizizufiku.mywebcommunity.org/what_kind_of_questions_are_asked_in_a_nursing_school_interview.pdf
    • http://pinerapidsrr.com/52158617510bi66j.pdf
    • http://kugewezebuvigiw.mygamesonline.org/aldosterona_definicion.pdf
    • http://jasazotinalol.mygamesonline.org/acid_rain_control.pdf
    • http://boevoenlp.com/break_even_analysis_chart_excel_templateawtg7.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://rorujuzolu.epizy.com/what_the_bible_says_about_an_angry_man.pdf
    • https://s3.amazonaws.com/farefasejikap/diablo_3_characters_guide.pdf
    • http://devugagevubuz.rf.gd/ben_10_alien_tamil_dubbed.pdf
    • http://fufifaramulemi.rf.gd/atif_aslam_coke_studio_new_song.pdf
    • http://bavizajo.epizy.com/xezukotuvupude.pdf
    • https://s3.amazonaws.com/pirofopafu/66728933210.pdf
    • https://s3.amazonaws.com/vitelitubovuluj/8641088626.pdf
    • http://perufukag.epizy.com/blank_balance_sheet_template.pdf
    • http://wekidezeze.epizy.com/double_bass_sheet_music_jazz.pdf
    • http://poziluxolebulu.epizy.com/45369866305.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_off0000fbcd.bin
a995b127c104a91ae1a337c7b1730b8f36a312b13ba4dcf1942fb632ab3cbf75		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFBCD 5036 bytes
font_01_sfnt_off00010ce8.bin
2e74ac28acd3c7ace143f59d911d43bfbb004e34c92415a45e47d3427342e64e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10CE8 11076 bytes

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