Malicious PDF — malware analysis report

Static analysis result for SHA-256 068174e78e5e5d0f…

MALICIOUS

PDF

84.1 KB Created: 2021-02-21 03:49:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 70e680b19175feb1b9c6eae031aca736 SHA-1: 840a2422a0680f2935350f0002d03532d860f22b SHA-256: 068174e78e5e5d0f6bebb18013ca1d14562d74bb81a076703d3785b81527a6ea
96 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with one prominent URL pointing to a suspicious domain ('druttle.ru'). The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware delivery. The document body, though heavily obfuscated, suggests it's a lure, possibly disguised as a download or information page.

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://druttle.ru/strik?utm_term=maxtor+one+touch+power+supply PDF link annotation
    • https://cdn.sqhk.co/bunigenozav/uqhfihB/20284516988.pdfIn PDF document text
    • https://cdn.sqhk.co/zowonefaso/giuqVjh/lidexadazok.pdfIn PDF document text
    • https://cdn.sqhk.co/fokofike/cI7yhig/mejowizotodudeb.pdfIn PDF document text
    • https://cdn.sqhk.co/sawibevas/jjighZc/84097851723.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451363/normal_6031b823eec82.pdfIn PDF document text
    • https://cdn.sqhk.co/gisatajofo/aoIljdY/monster_hunter_movie_trailer_2021.pdfIn PDF document text
    • https://cdn.sqhk.co/pixukinoma/ia8jfVU/black_hd_live_wallpaper.pdfIn PDF document text
    • https://cdn.sqhk.co/furigelo/jjhPjjD/babaxirozeruk.pdfIn PDF document text
    • https://cdn.sqhk.co/zupodejadofe/jLticjc/60542153566.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481540/normal_602d2cf8f2bba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457847/normal_600b58e73de3f.pdfIn PDF document text
    • https://cdn.sqhk.co/genopeno/fibD6oT/how_to_solve_brain_it_on_level_55.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/wuvepilamamuse/keborori.pdfIn PDF document text
    • http://favukimasinete.rf.gd/73090518938.pdfIn PDF document text
    • https://s3.amazonaws.com/zumezeviwakiz/answering_machine_expression_meaning.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_off000108db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108DB 5288 bytes
SHA-256: 929ae98780def6030398c106af9f4c1af9e53c77ffa6f79b74d6907ab892a60e
font_01_sfnt_off00011af8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11AF8 11948 bytes
SHA-256: 0311ed13ccbda2149fc2f2a2e507a74c617a188445c17dae1830eca50650cf41