Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bdf1c6dce587dae…

MALICIOUS

PDF

67.9 KB Created: 2021-02-25 19:48:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 315914d455b4b18d2c2b50d425842aee SHA-1: f168c7d66aea48b2ce6217ecf2fab6797e1c47f1 SHA-256: 1bdf1c6dce587dae6f938bd19daf79558af3dafb40a537f769d9365d41d7c366
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://maypoin.ru/award?keyword=sportdog+sdt00+replacement+charger PDF link annotation
    • http://terugate.mypressonline.com/do_seasons_of_the_year_need_to_be_capitalized.pdfIn PDF document text
    • https://cdn.sqhk.co/novozefox/eCnPkib/sales_receipt_booklet.pdfIn PDF document text
    • https://cdn.sqhk.co/fafujedajir/herUtG2/soul_music_radio_4_podcast.pdfIn PDF document text
    • https://cdn.sqhk.co/gaxozamikoge/jwnu4hb/76681124357.pdfIn PDF document text
    • http://beririka.scienceontheweb.net/oracle_sql_certification_cost_in_india.pdfIn PDF document text
    • https://cdn.sqhk.co/guzowozuk/hdSfGjb/nalesojuxufikipu.pdfIn PDF document text
    • https://cdn.sqhk.co/xinulezebi/gg1HvD6/9429976973.pdfIn PDF document text
    • https://cdn.sqhk.co/bemapebe/ihfFjis/animated_stickers_for_whatsapp_ios.pdfIn PDF document text
    • http://lamaded.mywebcommunity.org/al_quran_app.pdfIn PDF document text
    • https://cdn.sqhk.co/mekekomubun/deUTbjj/93319004965.pdfIn PDF document text
    • http://gejesixave.scienceontheweb.net/30668743068.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jawikaginixuxuz.rf.gd/38178663464.pdfIn PDF document text
    • http://retetopipazaned.epizy.com/30675457915.pdfIn PDF document text
    • http://nejesezape.myartsonline.com/nasowemesu.pdfIn PDF document text
    • https://s3.amazonaws.com/tamovagag/havoc_brothers_tamilan_song_in_masstamilan.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_off0000c9bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9BB 5732 bytes
SHA-256: 6a37e703cfcae642073591388f9f2c0d54ba1374bbbc20af74deeb853d048347
font_01_sfnt_off0000dd15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD15 10696 bytes
SHA-256: 8891d46e3031e292585615b7519cb9e75ebbf3aec1cf402409f9eba44dfab195