Malicious PDF — malware analysis report

Static analysis result for SHA-256 06066a7f458292f2…

MALICIOUS

PDF

70.6 KB Created: 2021-02-21 06:19:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 4e21167c76b9f9a3f9d890154efacf66 SHA-1: c4347d331afaffe2bd78e0605ca15e60a7d29a80 SHA-256: 06066a7f458292f2813c92a17a545b89829d41e4577f26a0261bd17ccdc21278
96 Risk Score

Malware Insights

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

The file is a PDF that contains multiple embedded URLs, with one specifically identified as a potential phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the presence of embedded URLs and the PDF structure suggest it's designed to redirect users to malicious sites, likely for phishing or to download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jacksth.ru/aws?utm_term=little+house+on+the+prairie+reboot+2020+cast PDF link annotation
    • http://kawlites.online/mortal_kombat_x_ps3_torrentg0peg.pdfIn PDF document text
    • https://cdn.sqhk.co/zebasama/Aghhdia/pick_up_pencil_game.pdfIn PDF document text
    • https://cdn.sqhk.co/suvezadamut/8JFkzET/hachi_japanese_bbq_menu.pdfIn PDF document text
    • http://design-kvartira.info/todos_los_libros_de_juego_de_tronos_en_espaolxc1qr.pdfIn PDF document text
    • http://discount50it.pro/blood_of_elves_summary2ftni.pdfIn PDF document text
    • https://cdn.sqhk.co/xajimujigaju/h49Riac/wrestling_revolution_3d_2020_apk_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4498842/normal_5ffe1db1dd017.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470977/normal_6020d2fe37546.pdfIn PDF document text
    • http://waystep.site/lixejigusimitnt77j.pdfIn PDF document text
    • http://6gusevshop.website/802829416529l608.pdfIn PDF document text
    • https://cdn.sqhk.co/joxezexukub/icssFjc/raxanaxiroti.pdfIn PDF document text
    • https://cdn.sqhk.co/tatidukigag/jhogXYJ/tivobezenopemuzevadizul.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/xulepiwa/english_alphabet_fonts_free.pdfIn PDF document text
    • https://s3.amazonaws.com/luxaduzimase/27521987511.pdfIn PDF document text
    • https://s3.amazonaws.com/buponuwebi/gesorixob.pdfIn PDF document text
    • https://s3.amazonaws.com/rudelazifizuvo/92405468506.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_off0000d7e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7E8 5376 bytes
SHA-256: 80dd68ed1527e0225112fb06f8f4e1b2a12e5af20dfb8883acc43e676c4d1098
font_01_sfnt_off0000ea20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA20 10184 bytes
SHA-256: 4971251a574c6cc98db0efd21afe03ecaa217ef85d8cfe997d9d1b64a3f16fd7

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