Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e165bac497ca43c…

MALICIOUS

PDF

87.9 KB Created: 2021-02-25 16:42:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 740913612a8f3508554b748a14a8d137 SHA-1: 661b78a6ddcdea729890cb6d4afdc1d7ff3c34f7 SHA-256: 6e165bac497ca43c58f2bdc548410880a1796ca57869052fa4399cf0d88c3836
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://baarspo.ru/aws?utm_term=responsive+education+website+templates+free+download+html+with+css+jquery PDF link annotation
    • https://cdn.sqhk.co/mikedeto/XjjuBaZ/mararuwogulipen.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367650/normal_60037a4478306.pdfIn PDF document text
    • http://lamaded.mywebcommunity.org/google_cloud_security_certification_free.pdfIn PDF document text
    • https://cdn.sqhk.co/fupupusamun/fPwGIIM/molovanojuso.pdfIn PDF document text
    • http://s7hmus.org/gizowuzixasakobosunivedub1j9dw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481424/normal_6013bca080efc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485587/normal_600abcac5a39f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495999/normal_602be2904045c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419628/normal_60141ffa34d9d.pdfIn PDF document text
    • http://xumupizaxuto.scienceontheweb.net/technical_drawing_with_engineering_graphics_15th_edition_download.pdfIn PDF document text
    • http://esagafow.fun/closest_burger_king_near_me_nowenxzc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482870/normal_6010eec31a5b4.pdfIn PDF document text
    • http://websporizle3.com/votutekapobapes77lfo.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/jeponowon/wobanefasafapil.pdfIn PDF document text
    • https://s3.amazonaws.com/bisazabe/37203278393.pdfIn PDF document text
    • http://pelebirepopo.onlinewebshop.net/damon_brand_archangels_of_magick.pdfIn PDF document text
    • https://s3.amazonaws.com/laradusa/whatsapp_apk_for_windows_phone_8._0.pdfIn PDF document text
    • https://s3.amazonaws.com/xabalaru/buxodi.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_off00011a9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A9E 6000 bytes
SHA-256: 2e291fb7904561dd3df79a2b30e66d73526acbc05048d5333a09af359d29c012
font_01_sfnt_off00012efb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12EFB 10336 bytes
SHA-256: 9e45618daa72a0c72b9f19f86d2719dd8958a0019c52966118fc03f75b41b4b4