Malicious PDF — malware analysis report

Static analysis result for SHA-256 111ad8e1cc07b966…

MALICIOUS

PDF

70.7 KB Created: 2021-02-28 08:58:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 4f538c2687f71f737c3ba1b7961c0fa6 SHA-1: 6501d0bd86d637b451c748d281080ca1f14d2fa6 SHA-256: 111ad8e1cc07b966a6e8e1bfd1ede7e3181b84f3061c75debfa100f09f3a6f51
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://xajibur.ru/award?keyword=jeep+grand+cherokee+service+near+me PDF link annotation
    • http://rowowesofazov.medianewsonline.com/which_of_the_following_statements_is_true_regarding_cost-plus_pricing.pdfIn PDF document text
    • https://cdn.sqhk.co/vuzefegevo/jiLiKgj/mod_godzilla_minecraft.pdfIn PDF document text
    • https://cdn.sqhk.co/xasakeza/gijiYZh/jomegasusal.pdfIn PDF document text
    • http://vugekowuzujed.scienceontheweb.net/37926235143.pdfIn PDF document text
    • http://wifunagidoli.mypressonline.com/69999451588.pdfIn PDF document text
    • http://vuvulusigi.scienceontheweb.net/maroo_of_the_winter_caves_chapter_13_summary.pdfIn PDF document text
    • https://cdn.sqhk.co/revinoxu/mztheic/drift_trike_wheels_nz.pdfIn PDF document text
    • https://cdn.sqhk.co/tumowara/ifMB2ji/92542704274.pdfIn PDF document text
    • https://cdn.sqhk.co/jovuvufoxet/7Ihc1Mb/farm_storytime_books.pdfIn PDF document text
    • https://cdn.sqhk.co/gixejefi/ij2jidB/81318969309.pdfIn PDF document text
    • https://cdn.sqhk.co/zolilobup/iiKggeb/wikajedizuner.pdfIn PDF document text
    • http://mobufuwiwid.medianewsonline.com/super_mario_bros_2_game_of_the_year_meme.pdfIn PDF document text
    • https://cdn.sqhk.co/mogezunir/fggL1op/list_of_football_clubs_in_english_premier_league.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nixomirorubu.myartsonline.com/wisokapokuzaxojozokadi.pdfIn PDF document text
    • http://jisijuvod.myartsonline.com/mental_status_examination_form_free_download.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_off0000d8c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8C9 5568 bytes
SHA-256: 76294ca76b0fb6d04b6b73dac28f439b96aed65ddca6214bfdb8e507ddc8517b
font_01_sfnt_off0000eb99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB99 10084 bytes
SHA-256: 08eb113b916715d385dfe215475329af027e8e27a230946b5404ede89017b7f0