Malicious PDF — malware analysis report

Static analysis result for SHA-256 98a790756b951715…

MALICIOUS

PDF

82.7 KB Created: 2021-03-09 14:18:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: 4e47c30b99d69718c86643644179c12f SHA-1: 9a11595b81ec9fa449dadaa13e9ca816d33cec3a SHA-256: 98a790756b951715b54f902bb44b1f93d87562e45a03774481f2bb026a548c2a
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, with a high risk score. It contains an embedded URL that mimics a search result, likely intended to trick the user into visiting a malicious site. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://leonvi.ru/wix?keyword=110v+washer+dryer+combo+canada PDF link annotation
    • http://netabemoli.22web.org/lyrics_something_just_like_this.lyric_the_chainsmokers__coldplay.pdfIn PDF document text
    • http://zexawil.22web.org/what_is_a_fluoroscopic_guided_injection.pdfIn PDF document text
    • http://rovepofaji.22web.org/857893103.pdfIn PDF document text
    • http://maykistore.ru/adobe_premiere_pro_video_editing_tutorialt1v4d.pdfIn PDF document text
    • http://jizerigozigalav.getenjoyment.net/softening_point_test_of_bitumen_lab_report.pdfIn PDF document text
    • http://bomaduworofa.medianewsonline.com/24937622983.pdfIn PDF document text
    • http://kerosijuvibeg.scienceontheweb.net/vonibolijiwewasip.pdfIn PDF document text
    • http://nekretnine.site/lebafewirikakipia1lgi.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/fuwenoxuzasila/pak_study_book_9th_class_in_urdu_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/ninazarila/zavake.pdfIn PDF document text
    • https://s3.amazonaws.com/dazovosugev/39036925415.pdfIn PDF document text
    • http://kugofabafomozo.epizy.com/context_clues_worksheets_multiple_choice_8th_grade.pdfIn PDF document text
    • http://zevizajezu.epizy.com/wpf_listbox_itemssource_itemtemplate.pdfIn PDF document text
    • http://jipudovisubu.rf.gd/fgdp_guidelines_open_standards.pdfIn PDF document text
    • http://sabiwilurase.atwebpages.com/the_raven_cycle_book_1_free.pdfIn PDF document text
    • https://s3.amazonaws.com/daniwodug/mixpad_audio_editor_free_full_version.pdfIn PDF document text
    • https://s3.amazonaws.com/nabifovu/task_centred_approach_in_social_work.pdfIn PDF document text
    • http://dulibifusarumo.rf.gd/hp_photosmart_6510_printhead_cleaning.pdfIn PDF document text
    • https://s3.amazonaws.com/serogajugomiji/zolobonixazovom.pdfIn PDF document text
    • https://s3.amazonaws.com/tarizirefevifab/1626195427.pdfIn PDF document text
    • https://s3.amazonaws.com/xofalepelala/tizipunujipe.pdfIn PDF document text
    • https://s3.amazonaws.com/bagokiko/fifty_shades_of_freed_full_movie_download_in_hindi_480p.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_off000105f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105F1 5640 bytes
SHA-256: 389dc0d3cbdb5f9d5d1fcf84b2c90cb902908afd440a88af29d8e47b1d66c672
font_01_sfnt_off00011908.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11908 10700 bytes
SHA-256: b775dd30ddd9d68c5ae8e13237238ba7951959ab7c7f055d2bfb474f77d482f2

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