Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cfa598c19e21617…

MALICIOUS

PDF

80.8 KB Created: 2021-03-14 06:04:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 8d2e377141b0cdefb7b1c7a25bdc956b SHA-1: c40c2fce61cc5f7bfdb356562d3a2a1421e09ba9 SHA-256: 3cfa598c19e2161735724fcdc4f685b338e84cd6989bd12b29df9d555293c63b
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://leonvi.ru/strik?utm_term=dell+precision+t1700+network+card PDF link annotation
    • https://cdn.sqhk.co/lekusovu/cThiDwL/22080630881.pdfIn PDF document text
    • http://xuwuvewisin.mypressonline.com/psychological_assessment_near_me.pdfIn PDF document text
    • http://doxalasi.mywebcommunity.org/nopuzubegasala.pdfIn PDF document text
    • http://vevaxogejaz.scienceontheweb.net/pikurata.pdfIn PDF document text
    • http://sifusebidokud.iblogger.org/37901665421.pdfIn PDF document text
    • https://cdn.sqhk.co/xuwifoviwalo/OhjhgMG/5565332001.pdfIn PDF document text
    • http://tupaxeguna.scienceontheweb.net/kung_fu_panda_legends_of_awesomeness_enter_the_dragon_game.pdfIn PDF document text
    • https://cdn.sqhk.co/remonupode/jeVygfl/gacha_life_wallpaper_cute_edit.pdfIn PDF document text
    • http://fezatubiwe.getenjoyment.net/moon_river_pizza_jacksonville_fl_32205.pdfIn PDF document text
    • http://futajef.medianewsonline.com/alif_novel_episode_4_free_download.pdfIn PDF document text
    • http://tuduvodakep.mypressonline.com/11012508138.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/toguvaju/shed_blueprints.pdfIn PDF document text
    • https://s3.amazonaws.com/tunenijexe/nivuzokaxok.pdfIn PDF document text
    • https://s3.amazonaws.com/juzinaramip/table_of_contents_template_apa_style.pdfIn PDF document text
    • https://s3.amazonaws.com/xufujofaleki/pennsylvania_certificate_of_merit_form.pdfIn PDF document text
    • http://vugugemo.atwebpages.com/a_problem_book_in_mathematical_analysis_berman.pdfIn PDF document text
    • http://minawibuwo.rf.gd/how_to_play_cribbage_printable_instructions.pdfIn PDF document text
    • https://s3.amazonaws.com/jipowumat/chamma_chamma_song_tinyjuke.pdfIn PDF document text
    • http://xusegejelugebit.epizy.com/gexezuzobafuposukubad.pdfIn PDF document text
    • http://xazitew.epizy.com/rosomivigakaxewi.pdfIn PDF document text
    • http://xelidamos.epizy.com/47707895630.pdfIn PDF document text
    • https://s3.amazonaws.com/remeranexe/tuladililavi.pdfIn PDF document text
    • https://s3.amazonaws.com/jefazaxal/lalaxizefev.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_off0000fe86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE86 5496 bytes
SHA-256: 43ddfc2e58473ef633b590292186b3111d90718b2a3396ca22391edd831fbe93
font_01_sfnt_off0001116a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1116A 10948 bytes
SHA-256: 525fdea29686c688f24047c337b59bdfa878a7e3c258e6be995499d6992e0508

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