Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e74ce187c49c24e…

MALICIOUS

PDF

74.1 KB Created: 2021-02-22 13:27:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: 367c315472b752b5bc2a4196b39eb5bb SHA-1: 9e8758176e9abaf7672a7fab46b77ea6a42412b9 SHA-256: 4e74ce187c49c24e31ac9b387a8b566f6cc08e179f3d5ef90f52d60d2cf13bea
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The document body, though heavily obfuscated, suggests a lure related to 'how to be a animator for pixar'. The presence of external URIs, specifically 'https://bologen.ru/strik?utm_term=how+to+be+a+animator+for+pixar', strongly suggests this is a phishing attempt or a distribution point for further malware. No scripts were extracted, but the PDF structure and external links are sufficient indicators of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/strik?utm_term=how+to+be+a+animator+for+pixar PDF link annotation
    • http://spoonnumberone.xyz/american_history_trivia4yltz.pdfIn PDF document text
    • http://idealica-italiaufficiale.website/37088965118p34sc.pdfIn PDF document text
    • http://copyrightshelpscenters.com/sometimes_you_die_downloading53tor.pdfIn PDF document text
    • http://gatigade.iblogger.org/limawumusezatarusel.pdfIn PDF document text
    • http://reduslim-officialsite.site/5713035678706gbg.pdfIn PDF document text
    • http://startbastar.online/wie_lange_Leben_schwarze_geistermess2eycm.pdfIn PDF document text
    • http://stc-l.ru/enfield_ct_police_reports77ef0.pdfIn PDF document text
    • http://meduduwaje.22web.org/android_auto_day_night_mode.pdfIn PDF document text
    • http://pixxel.life/nystrom_desk_atlas_5th_editionldwb7.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/nakuzafol/game_doraemon_story_of_seasons.pdfIn PDF document text
    • https://s3.amazonaws.com/bugutaj/gate_geant4_user_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/likerajatob/anbe_anbe_kollathey_song_masstamilan.pdfIn PDF document text
    • http://bikumomobopo.rf.gd/red_bus_ticket_format.pdfIn PDF document text
    • https://s3.amazonaws.com/vibasujefir/63077230096.pdfIn PDF document text
    • http://tuxizosog.rf.gd/affirmative_rights_term_sheet.pdfIn PDF document text
    • http://sikozodiz.rf.gd/online_excel_spreadsheet_editor.pdfIn PDF document text
    • http://kamabutexukawiv.rf.gd/whatsapp_plus_for_android_nougat.pdfIn PDF document text
    • https://s3.amazonaws.com/pivetuzadujo/sales_contract_terms_and_conditions_template.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_off0000e41d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE41D 5100 bytes
SHA-256: 18c8bd21f3bb55b0db4ed27890f1dbcf6e246e5950415a35467a14b5bbb42918
font_01_sfnt_off0000f573.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF573 11256 bytes
SHA-256: 42b74f224583e7afeb5bac6ed4aba0397fb731581ff73384fb147d34fc69c5a2

Open this report in the interactive analyzer, or submit your own file for analysis.