Malicious PDF — malware analysis report

Static analysis result for SHA-256 785ee2ce5ddecfa0…

MALICIOUS

PDF

73.7 KB Created: 2021-02-08 22:39:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 8f8974a042e2145b0679a1199e53fa1f SHA-1: 283b88d8a5674c12f65d922158a73c79b5be07bd SHA-256: 785ee2ce5ddecfa06a217cff83b3fd9ca375a8f5dfbbf84eaa2dd005991f8371
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=reportage%20ehpad%20france%205 PDF link annotation
    • https://cdn.sqhk.co/leluforeref/jh3CLhi/defence_zone_2_hack_download_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405459/normal_5fcf18fbaedd6.pdfIn PDF document text
    • https://welirupew.weebly.com/uploads/1/3/4/6/134662060/daceb280fd53dd.pdfIn PDF document text
    • https://monezoxikaxusoj.weebly.com/uploads/1/3/1/4/131453753/lelumukuloseraxo.pdfIn PDF document text
    • http://risurevisawibe.iblogger.org/82198411078.pdfIn PDF document text
    • https://cdn.sqhk.co/feluxolid/HdkcgiB/painting_ideas_on_canvas_easy.pdfIn PDF document text
    • http://twobigs.space/psiphon_pro_version_apkvaxhr.pdfIn PDF document text
    • https://cdn.sqhk.co/pedajobu/hhicjdQ/mars_hill_survivors.pdfIn PDF document text
    • https://cdn.sqhk.co/minamojazi/oiajehj/nijamajozofujora.pdfIn PDF document text
    • http://mx50off.pro/lazakopugifepofusij8cpv.pdfIn PDF document text
    • http://alexandreablog.com/kitchen_cleaning_checklist_template_excelol7l4.pdfIn PDF document text
    • https://cdn.sqhk.co/limizolaxa/cf00Fjh/toyota_paint_color_by_vin_number.pdfIn PDF document text
    • http://udilische.club/praktikum_akuntansi_perusahaan_jasa_dagang_dan_manufaktur_kelas_11irq16.pdfIn PDF document text
    • https://cdn.sqhk.co/zudilubal/hb2ieja/tamitobazetokemimudag.pdfIn PDF document text
    • https://cdn.sqhk.co/mikevoponage/8iVggje/34575080246.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000df43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF43 5336 bytes
SHA-256: 647ee4433b213f3144394646be5c58b1f56bf94e65ea37ae33ef5d6938c07f2f
font_01_sfnt_off0000f16f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF16F 12460 bytes
SHA-256: 76ccca499028041a080ab9c4734b2f35bbf448f4f28b72d7e97a9359be79ffa4