Malicious PDF — malware analysis report

Static analysis result for SHA-256 2425465f28c51b62…

MALICIOUS

PDF

85.1 KB Created: 2021-03-10 18:41:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: a3f1184ce51b51e6e4e614ed7b95f04b SHA-1: 99886a1cf5c03edd460e215cef348395c5aa6f88 SHA-256: 2425465f28c51b6299387c8c7f1fc152b7d73725ae17f241d50967b9a7ecca86
104 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 presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://xezojetit.ru/123?utm_term=cakewalk+9+free PDF link annotation
    • http://memisada.mygamesonline.org/sagefumarijuxuvopuw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451377/normal_60443c2211bad.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417648/normal_5fe55db765612.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412568/normal_600cf4761b82b.pdfIn PDF document text
    • http://winfreeiphone.xyz/persepolis_shah_1971til96.pdfIn PDF document text
    • http://specrazreshenie.com/588045927925z5qz.pdfIn PDF document text
    • http://flowerport.store/what_are_the_bingo_callsgky7f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488581/normal_5fd6677ea0741.pdfIn PDF document text
    • http://gallery-shop.site/30419683858w7v7q.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://lasuwutiganije.rf.gd/chicco_mini_bravo_plus_stroller_manual.pdfIn PDF document text
    • http://defimaromibituf.rf.gd/gojilo.pdfIn PDF document text
    • https://s3.amazonaws.com/lebaxa/beamer_manual_latex.pdfIn PDF document text
    • https://s3.amazonaws.com/wamatasamegu/booker_t_washington_atlanta_compromise.pdfIn PDF document text
    • https://s3.amazonaws.com/widofafane/calc_bc_frq_scoring_guidelines.pdfIn PDF document text
    • http://bomofafavadu.rf.gd/when_can_construction_start_in_nyc_covid.pdfIn PDF document text
    • https://s3.amazonaws.com/mubemutolewe/linking_verbs_worksheets_for_grade_1.pdfIn PDF document text
    • http://suwulinivez.rf.gd/35482946925.pdfIn PDF document text
    • https://s3.amazonaws.com/kegovev/crazy_train_bass_clarinet_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/fuvidokibet/internship_report_sample_for_mba.pdfIn PDF document text
    • https://s3.amazonaws.com/jaxesabi/blu_ray_ripper_software_free.pdfIn PDF document text
    • https://s3.amazonaws.com/xisakazelelinim/kmart_bamboo_sheets_review.pdfIn PDF document text
    • http://mebexadesojixip.rf.gd/57264940937.pdfIn PDF document text
    • http://besafetusupug.atwebpages.com/wasesatovixolirusukopi.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010493.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10493 4360 bytes
SHA-256: 1fcb32aad0755df2372ea784d052665e6e7d576b7465fe1d508cb5d35b81f841
font_01_sfnt_off00011381.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11381 10916 bytes
SHA-256: 20db600ec919d02c2e51cb575bbadb95c6b142fc8e73910cc36593965abeb11f
font_02_sfnt_off00013898.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13898 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230