Malicious PDF — malware analysis report

Static analysis result for SHA-256 a934d2196f4f1915…

MALICIOUS

PDF

70.0 KB Created: 2021-02-09 01:55:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: e6dcd3522bd9180ad0bd68efd1018e99 SHA-1: 6bca1275018f65ce45b6bf7c6884be52add9b03f SHA-256: a934d2196f4f1915ab4826648664f44c2078b6c1344a6d9cd97c9e3278f2f482
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest an attempt to exploit users through a deceptive link.

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://jacksth.ru/wb?keyword=cara%20menggunakan%20multitester%20analog%20pdf PDF link annotation
    • https://cdn.sqhk.co/suxumeva/Yji7jii/nalajokojibifonika.pdfIn PDF document text
    • https://cdn.sqhk.co/bugolajoxodu/ih7hg7u/dragon_ball_stickman_fight_mod_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463264/normal_6021cd322ed52.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464082/normal_600d5c59293c0.pdfIn PDF document text
    • http://energierecrute-emplois.com/68329198076e3xv5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495262/normal_5fe624ac06b90.pdfIn PDF document text
    • http://markettop.pro/arma_3_apk_freehsnfi.pdfIn PDF document text
    • http://nonretloli.site/netgear_wg111_driverztnqz.pdfIn PDF document text
    • http://takipleskazan.org/catfish_nev_wifeevipa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402718/normal_6006a76d37067.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454436/normal_6017cca950b9f.pdfIn PDF document text
    • https://cdn.sqhk.co/zasemewiti/jf2mie9/superhero_mobile_ringtone_download_mp4.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/vesubodufisi/que_es_un_diagnostico_empresarial.pdfIn PDF document text
    • https://s3.amazonaws.com/liluvad/minimalismo_musical_informacion.pdfIn PDF document text
    • https://s3.amazonaws.com/bipovoromoj/spotify_free_premium_for_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/dagasopones/bertram_primary_school_uniform_shop.pdfIn PDF document text
    • https://s3.amazonaws.com/veraxawewib/avr_studio_4_setup._exe_free.pdfIn PDF document text
    • https://s3.amazonaws.com/tirimofufemukat/bodyguard_movie_songs_free_320kbps.pdfIn PDF document text
    • https://s3.amazonaws.com/nefagolom/memento_mori_gdr.pdfIn PDF document text
    • https://s3.amazonaws.com/woberiz/33532940813.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_off0000d4ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4FF 5328 bytes
SHA-256: e69b499af6312b18cd1e3da43dddf58af0a4f433f7d74367d6881d79657c977a
font_01_sfnt_off0000e70e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE70E 10420 bytes
SHA-256: 261c8bb48381e12d93ac0d2b1881703a14cfc701b9fe3e44c5a0e53e500cf3b3

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