Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d43669d26bfd8af…

MALICIOUS

PDF

71.6 KB Created: 2021-03-04 00:03:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 67e75d2d7f565ddc463243811a903631 SHA-1: ca03240b8050c5fd7bc7f7ab2bbf5456bb85597d SHA-256: 5d43669d26bfd8afcc58e6eca153bd3b30e677f922b51fb984d084c6abcc1750
224 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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.
  • 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://dafemum.ru/award?keyword=how+to+take+the+front+cover+off+a+whirlpool+duet+washer In PDF document text
    • https://pibemalogodozod.weebly.com/uploads/1/3/2/6/132681910/gemaro-wuzugenikis-jikuwoxo-muxewidajov.pdfIn PDF document text
    • https://gawopina.weebly.com/uploads/1/3/2/8/132814119/batisuwo-gigup.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404987/normal_60028cadbd6d4.pdfIn PDF document text
    • http://koxelovanalimu.getenjoyment.net/fizirirawo.pdfIn PDF document text
    • http://fisareboveda.getenjoyment.net/golaretedupofaga.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481164/normal_601111e8767d7.pdfIn PDF document text
    • http://winoorama.site/go_fish_poke_bar_locations5u386.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403673/normal_6029d5b9baaea.pdfIn PDF document text
    • https://bufofeguwozeder.weebly.com/uploads/1/3/0/7/130775144/boteza_danelik.pdfIn PDF document text
    • https://cdn.sqhk.co/muribirigim/uihogeZ/pifonudapijowa.pdfIn PDF document text
    • https://losaburi.weebly.com/uploads/1/3/5/3/135322327/warunoteruxosobusi.pdfIn PDF document text
    • http://xixofafil.medianewsonline.com/leveluk_sd501_filter_replacement_video.pdfIn PDF document text
    • http://xevusezes.medianewsonline.com/derechos_humanos_consagrados_en_la_constitucion_de_la_republica_bolivariana_de_venezuela.pdfIn PDF document text
    • https://cdn.sqhk.co/fasaparoba/Jhghjjd/61610274828.pdfIn PDF document text
    • http://xidakuxekon.22web.org/45119672520.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392191/normal_5fdc3ac01637d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mokimonanogi.rf.gd/types_of_asset_classes.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_off0000db27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB27 5420 bytes
SHA-256: afc9c3fb92ddcb6c8c09ae3ef8bf1920f6ea4e2a90f2c0549876adcafa53e8f6
font_01_sfnt_off0000edae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDAE 10364 bytes
SHA-256: 3b48db80ca3790c069f98b2db21207e81cdb4547651290dcd022a04e27ff06fc

Open this report in the interactive analyzer, or submit your own file for analysis.