Malicious PDF — malware analysis report

Static analysis result for SHA-256 d71d57d7911c9446…

MALICIOUS

PDF

76.3 KB Created: 2021-05-08 14:24:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 2ad6ebbc7ce39801002f91ef2a3d0d21 SHA-1: 778acaad37aaaa1239a1a690fd2eb2bf46dc2196 SHA-256: d71d57d7911c9446691dfb44d4a7d0630d3c8617502e32ea2443ac58c6d9e211
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://soxebez.ru/strik?utm_term=silence+of+the+lambs+full+movie+free+download+mp4 PDF link annotation
    • http://poradoit1.site/tepaninuzagenadafev5o96k.pdfIn PDF document text
    • http://wupunekum.getenjoyment.net/98929538425.pdfIn PDF document text
    • http://gifebadop.iblogger.org/mozuvovineliwajijeseru.pdfIn PDF document text
    • http://scarcebook.com/3426520436jysif.pdfIn PDF document text
    • https://wuvalarovujed.weebly.com/uploads/1/3/4/2/134266489/vegiwezexe.pdfIn PDF document text
    • https://rikekipodoze.weebly.com/uploads/1/3/0/7/130776447/tokaneludokaj.pdfIn PDF document text
    • http://pasendapp.online/combine_like_terms_variables_and_equations_worksheetiwssi.pdfIn PDF document text
    • http://pepariravifaza.getenjoyment.net/ragetoza.pdfIn PDF document text
    • https://cdn.sqhk.co/sixepatexup/ibjdXPV/novalopifadibes.pdfIn PDF document text
    • https://sesumevikenaful.weebly.com/uploads/1/3/5/3/135346106/8369063.pdfIn PDF document text
    • http://0fruits.space/levigozaluvujanisugizokaz1ov3g.pdfIn PDF document text
    • https://cdn.sqhk.co/durotula/fjd4mB8/67198313784.pdfIn PDF document text
    • http://teaapple.space/81953654362hdmju.pdfIn PDF document text
    • https://cdn.sqhk.co/kososojog/PST4jjA/fox_mountain_bike_helmets_uk.pdfIn PDF document text
    • https://cdn.sqhk.co/mokevesin/zT30ijv/cleaner_clean_the_phone_memory_cache_booster_master.pdfIn PDF document text
    • http://xoziduso.mypressonline.com/solapur_university_result_2020_b._com.pdfIn PDF document text
    • https://cdn.sqhk.co/bovutolomevo/ghhbjjm/bugozejizasejoz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ponusiniwanus.epizy.com/51214276840.pdfIn PDF document text
    • http://ximigatoma.rf.gd/transport_international_maroc.pdfIn PDF document text
    • http://lamupimifuban.onlinewebshop.net/48991651782.pdfIn PDF document text
    • http://pivimufe.atwebpages.com/hybridization_examples.pdfIn PDF document text
    • http://nabumib.rf.gd/99685686563.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_off0000eb0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB0A 5880 bytes
SHA-256: c0de8d3759e69d0ba341b3ccd30b269fe771645be0ebecce717042d8c9693589
font_01_sfnt_off0000fef7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEF7 10584 bytes
SHA-256: 676d73361eee21d74a989f78e1fe5e89b18e9551184c4816150e2f5916f30deb