Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f10ec48154aa381…

MALICIOUS

PDF

79.9 KB Created: 2021-03-27 15:33:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1fb9aaf5b8af111908e462092373fb6b SHA-1: ee7fc1917b782bff154086dff26ff2e6d807c673 SHA-256: 2f10ec48154aa381744cc3668615ebc0f7ecb3e28cd5b83dfbf458ae545bf85f
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing attempt. The embedded URL leads to a suspicious domain, likely intended to host malicious content or phishing pages. Although no scripts were explicitly extracted, the PDF structure and the presence of external URIs suggest an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://lozipotod.ru/123?utm_term=compare+medical+alert+systems+consumer+reports
    • http://niwopofe.scienceontheweb.net/43531994185.pdf
    • http://puvinizozibejir.mygamesonline.org/16002913221.pdf
    • http://gekifek.scienceontheweb.net/38370175975.pdf
    • http://kirakexig.mypressonline.com/time_value_of_money_formula_with_example.pdf
    • http://zijukikov.mypressonline.com/el_nuevo_cine_mexicano.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/zonebon/86541473399.pdf
    • https://s3.amazonaws.com/fixararololu/best_business_web_templates.pdf
    • https://s3.amazonaws.com/pisik/supemipapenatodob.pdf
    • http://dasobiviwadodaj.atwebpages.com/workbench_salesforce.pdf
    • https://s3.amazonaws.com/pozokimepe/gajojugamaniwugibuzedirix.pdf
    • https://s3.amazonaws.com/memexelu/61806894522.pdf
    • https://s3.amazonaws.com/pusori/13781604699.pdf
    • https://s3.amazonaws.com/wogikokuzotaxa/dearing_report_1994_summary.pdf
    • https://s3.amazonaws.com/dipafuxe/sketching_from_the_imagination_dark_arts_download.pdf
    • https://s3.amazonaws.com/dukajevo/bleacher_report_raw_winners_grades.pdf
    • https://s3.amazonaws.com/zafibimutadoti/91586624345.pdf
    • https://s3.amazonaws.com/vonusirukete/12714889773.pdf
    • https://s3.amazonaws.com/werowibovezoje/terzaghi_bearing_capacity_factors_nc.pdf
    • https://s3.amazonaws.com/padadutiseni/blackburn_college_apprenticeship_application_form.pdf
    • https://s3.amazonaws.com/degagaziv/blitzkrieg_2_updates_s.pdf
    • https://s3.amazonaws.com/divelikubapiwaj/swayam_prabha_app_for_pc.pdf
    • https://s3.amazonaws.com/dibedamoka/fedolatufifugofak.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_off0000fbb9.bin
6d8f46ca5097d3ee33d91ba332a537dcda5bf58e0998926d93f7bc74b7883aba
pdf-font-stream PDF embedded font (sfnt) at offset 0xFBB9 5228 bytes
font_01_sfnt_off00010d6a.bin
392270adeb5153490bb5e0602385a400931b6f9a53c65fca68a9b39404098b5a
pdf-font-stream PDF embedded font (sfnt) at offset 0x10D6A 10764 bytes