Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bed9100ebc89445…

MALICIOUS

PDF

79.2 KB Created: 2021-05-08 23:30:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: c924e447b33fab9697720ef6d5ac3cd8 SHA-1: 0bd9d5c6e718e347cb03f94c1ba5ba457bda3823 SHA-256: 9bed9100ebc894459379a0eb9c1ce2f79b1c283e9c64261976d2acd7ac39c7ad
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URL that redirects 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 suggest it's designed to trick users into visiting 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://kuzutuzo.ru/strik?utm_term=what+coding+language+do+engineers+use PDF link annotation
    • https://cdn.sqhk.co/lukapokobejo/Rdwkih1/dotixatelofuda.pdfIn PDF document text
    • http://activa-fb.com/camelot_miniature_golf_anaheim_caiv0xh.pdfIn PDF document text
    • https://cdn.sqhk.co/gusoguribus/haEkihX/pang_adventures_buster_edition_ps4.pdfIn PDF document text
    • https://cdn.sqhk.co/tebefaravuz/gij1ijM/suwiru.pdfIn PDF document text
    • https://cdn.sqhk.co/kaxejelun/1TFgdgf/santorini_hotels_with_private_pool_oia.pdfIn PDF document text
    • http://epaytds.xyz/80161440707em9kn.pdfIn PDF document text
    • http://sodahub.pro/borijemipoxezamemuxigefefoymu1.pdfIn PDF document text
    • http://websecurer.tech/what_is_the_best_brand_of_power_recliners6imlb.pdfIn PDF document text
    • http://wonder-ita.fun/29184317242k2ywe.pdfIn PDF document text
    • https://cdn.sqhk.co/wekababu/ghhdih0/tin_can_knock_down_game.pdfIn PDF document text
    • https://cdn.sqhk.co/gabazumad/jiiggR7/22945448256.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/padanivozeb/mehandi_circus_movie_video_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/xunilukegez/fame_tv_show_episode_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxomigo/wenimiwerotujixuzibe.pdfIn PDF document text
    • https://s3.amazonaws.com/venunamazozuzo/exercice_corrig_atomistique_s1.pdfIn PDF document text
    • https://s3.amazonaws.com/savukojubusum/nombres_de_jess_en_el_antiguo_testamento.pdfIn PDF document text
    • https://s3.amazonaws.com/bipepezuwed/pakaweridivemot.pdfIn PDF document text
    • https://s3.amazonaws.com/tonemakopinibem/buscopan_duo_bula.pdfIn PDF document text
    • https://s3.amazonaws.com/vabedafozo/interior_design_jobs_nyc_salary.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB73 5096 bytes
SHA-256: 3f13762cd654653a91aa9e2f3de4204c587627d5578cfafe8404a6b4acbce5dc
font_01_sfnt_off0000fcb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCB8 10852 bytes
SHA-256: 94241742eff552ba1385b09af24d95a327dd43dc2f2f6996e604f4382180ecb2
font_02_sfnt_off0001219d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1219D 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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