Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd7b760bca97c7ea…

MALICIOUS

PDF

78.8 KB Created: 2021-03-14 16:19:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 62f7873829ac5bc8cfd29104d02e917d SHA-1: 6f7dfcd781b231dd6b86e9485312d40c2c41583a SHA-256: bd7b760bca97c7eaa31b1aa47ad8194237faf408b9f138d8a254dd8b8b077765
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the presence of external URIs and the overall nature of the heuristics point towards a phishing lure designed to redirect the user to a malicious site.

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://midufefew.ru/strik?utm_term=war+of+the+worlds+2021+bournemouth PDF link annotation
    • https://cdn.sqhk.co/jawefujivi/ojpUqid/star_wars_d_d_dice_set.pdfIn PDF document text
    • https://cdn.sqhk.co/tiniwakutosu/Ighhjs8/flix_movies_rosogolla_online_watch.pdfIn PDF document text
    • https://cdn.sqhk.co/rokogikapo/Lr9qibT/togazalilamejowelud.pdfIn PDF document text
    • https://cdn.sqhk.co/vopufepivipe/nPjhpje/50345664705.pdfIn PDF document text
    • https://cdn.sqhk.co/feripamapuv/SPjhjgY/gameboy_color_link_port.pdfIn PDF document text
    • http://laregazobo.22web.org/no_easy_day_film_streaming_ita.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/sefukirexuwekij/75698204103.pdfIn PDF document text
    • https://s3.amazonaws.com/woxewiwupir/best_alarm_clock_app.pdfIn PDF document text
    • http://siwojanapav.epizy.com/lentiform_nucleus_caudate_nucleus_collectively_called.pdfIn PDF document text
    • https://s3.amazonaws.com/votubukaxogilix/64546926580.pdfIn PDF document text
    • https://s3.amazonaws.com/zozuxukoxo/48878969001.pdfIn PDF document text
    • https://s3.amazonaws.com/mozirolinitaje/85579041130.pdfIn PDF document text
    • https://s3.amazonaws.com/susonanezaj/attack_on_titan_tribute_game_apkpure.pdfIn PDF document text
    • https://s3.amazonaws.com/jazofi/astro_a50_manual_update.pdfIn PDF document text
    • https://s3.amazonaws.com/xilasisefi/aluratek_bluetooth_abc01f_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/wamatasamegu/47619572681.pdfIn PDF document text
    • https://s3.amazonaws.com/sabegokek/kigijumerazaxaxekuvowodas.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawe/bagevegemonugimig.pdfIn PDF document text
    • https://s3.amazonaws.com/xupimaral/80593338381.pdfIn PDF document text
    • https://s3.amazonaws.com/xokebore/womitewofepa.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_off0000f6a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6A7 5716 bytes
SHA-256: 3771f8a7a668e04b0c608e6965b5ce0c3aaaa94a6acd1b0e036a02e5859ecb19
font_01_sfnt_off00010a0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A0F 10724 bytes
SHA-256: cbf044df4914d7db5f44be0bbd1ccc6d9f78f690b18d8112b0fe2430e9f0faf6

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