Malicious PDF — malware analysis report

Static analysis result for SHA-256 065f7dc9791c9274…

MALICIOUS

PDF

64.2 KB Created: 2021-01-26 03:42:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 301f650818c6dfd4e31dff45d76e7c2e SHA-1: a3c0c0551e583e56aca43297045c062ae3dd4472 SHA-256: 065f7dc9791c9274a64b8a6ce3475823d8588d3c8cf62cad9cca5b2cd550836b
186 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
  • 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://bologen.ru/wb?keyword=youtube%20julio%20iglesias%20greatest%20hits%20in%20spanish PDF link annotation
    • https://cdn.sqhk.co/julukiporo/gffib5w/new_york_city_wallpaper_for_phone.pdfIn PDF document text
    • https://dumetokewip.weebly.com/uploads/1/3/4/3/134394823/detixa.pdfIn PDF document text
    • https://cdn.sqhk.co/vojogalu/UhiTlsz/free_casino_slots_games_online_no_downloads.pdfIn PDF document text
    • https://cdn.sqhk.co/ruxukulalodi/hJficBS/recargar_celular_movistar_colombia.pdfIn PDF document text
    • https://rorupuloloxotog.weebly.com/uploads/1/3/1/4/131409755/104293d0559f89.pdfIn PDF document text
    • https://cdn.sqhk.co/xarozowuzosa/ghFKjh2/87863326958.pdfIn PDF document text
    • https://pedogore.weebly.com/uploads/1/3/2/8/132815008/geleralivepi.pdfIn PDF document text
    • https://cdn.sqhk.co/jetobatu/aTm6Dih/norse_gods_and_goddesses_worksheet.pdfIn PDF document text
    • https://jiwuzutobaduf.weebly.com/uploads/1/3/4/8/134889186/mimupixi.pdfIn PDF document text
    • https://lumirofelefepo.weebly.com/uploads/1/3/4/8/134892557/raxubikuj-wawasefa.pdfIn PDF document text
    • https://luseviji.weebly.com/uploads/1/3/5/2/135298280/8516838.pdfIn PDF document text
    • https://cdn.sqhk.co/nuvexajamu/gdRgEid/63381275135.pdfIn PDF document text
    • https://cdn.sqhk.co/riragimi/aUVQDjc/zemevojawolimimulifo.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/rewepalazamiso/android_9_update_issues.pdfIn PDF document text
    • https://s3.amazonaws.com/jifesu/ac_dc_thunderstruck_song_video.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_off0000bf4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF4E 5256 bytes
SHA-256: b0961865d6064aa661cd9f6aec28cc1f2295c30c1eeb3ab9adda974f6e6bfc9d
font_01_sfnt_off0000d12d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD12D 10364 bytes
SHA-256: 1060fccd6fa6aeed7c50d13da1fc86cfc40101ab4658b9c6ad361428bb12f422