Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca46018f65c478ee…

MALICIOUS

PDF

73.8 KB Created: 2021-03-21 02:04:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 310149b8aaa4ea572e00a2975d2b7b0d SHA-1: 7ad055eca54f1a72ac0ab956fd2705d71e084873 SHA-256: ca46018f65c478ee732d009dd2766669ce451140e8eca791cf6c818249858f35
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, which is likely a phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://jumiwimov.ru/strik?utm_term=beats+solo+3+wireless+white+best+buy PDF link annotation
    • http://musc-media.xyz/the_secret_of_ages_booktpf01.pdfIn PDF document text
    • http://car-test.pro/kuxoperemecr4x.pdfIn PDF document text
    • http://theandyhong.com/breathedge_achievement_guidez2m2q.pdfIn PDF document text
    • http://baykamif.space/tizipay6x1a.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/penefelomiju/abhimanyu_bengali_movie_video_song.pdfIn PDF document text
    • https://s3.amazonaws.com/xuxifuzituwu/23378612543.pdfIn PDF document text
    • http://neduweleviwov.rf.gd/44677564316.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/633396e9-576e-41ab-9726-3e429ff60395/51455043671.pdfIn PDF document text
    • http://kuderegeguf.epizy.com/buzok.pdfIn PDF document text
    • https://s3.amazonaws.com/titugome/bixovizonuwawenut.pdfIn PDF document text
    • http://borowif.epizy.com/bridge_to_terabithia_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/sesafefanulokam/22390544976.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxomigo/report_baisse_du_taux_d_is.pdfIn PDF document text
    • https://s3.amazonaws.com/dejolavubukugeb/ammadi_ammadi_nerungi_song_masstamilan.pdfIn PDF document text
    • https://s3.amazonaws.com/dagasopones/lurofisapisikapisafabe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/739b8bd0-a670-4e9a-8438-27959df19049/wix_multiple_email_accounts.pdfIn PDF document text
    • https://s3.amazonaws.com/zowibatev/xetaxivajisebidi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2bb1c487-5c04-4d6a-a58c-c52959b574b6/the_7_highly_effective_habits_of_teenager.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_off0000e326.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE326 5320 bytes
SHA-256: d67e49ea05af6f01bb4429d23d1cf93e57adeeee42698e04b965568bdc5d81ef
font_01_sfnt_off0000f54c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF54C 10784 bytes
SHA-256: 36b07ae7637aaf7bdfbfb106193b8e3334964c6af5ab85b9de9279a66afe94db

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