Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d6a07cdaf5d14f0…

MALICIOUS

PDF

69.8 KB Created: 2021-02-28 12:05:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: db1ecbd6f8e846bc9a6e7fe2fa2acd09 SHA-1: 916c0272cdb18a79f0df0fc698750c0552b75bb7 SHA-256: 7d6a07cdaf5d14f02d07c999da3557d235186e8b3117abfc74cb42cdf88b76c9
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=arris+surfboard+sb6141+instructions PDF link annotation
    • https://cdn.sqhk.co/gavonenegave/gcGzXzX/16759520643.pdfIn PDF document text
    • http://sajitalunaded.22web.org/4187398316.pdfIn PDF document text
    • http://pukebebizadolu.mypressonline.com/volume_of_cylinders_pyramids_cones_and_spheres_worksheet.pdfIn PDF document text
    • https://cdn.sqhk.co/mutexeze/fPShhic/37744262548.pdfIn PDF document text
    • http://fanutoragozogow.sportsontheweb.net/lavuwilututan.pdfIn PDF document text
    • https://cdn.sqhk.co/vuvapolaxaj/ih0mgce/evolution_movie_gif.pdfIn PDF document text
    • https://cdn.sqhk.co/miraroki/5iigj9o/spin_the_bottle_truth_or_dare_song.pdfIn PDF document text
    • http://dimozakebaba.scienceontheweb.net/what_is_the_difference_between_caregiver_and_care_provider.pdfIn PDF document text
    • http://tepugorotewole.medianewsonline.com/76513541745.pdfIn PDF document text
    • http://vumonivaxozutod.mypressonline.com/perodonasedej.pdfIn PDF document text
    • http://sugameloxufe.mywebcommunity.org/57826248856.pdfIn PDF document text
    • https://cdn.sqhk.co/tazarufavixa/mjdafPk/callaway_mavrik_hybrid_headcover.pdfIn PDF document text
    • https://cdn.sqhk.co/navuwamas/ggQeshi/moran.pdfIn PDF document text
    • https://cdn.sqhk.co/zimuteraf/rjgcYgi/train_surfers_run_subway_running_game.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sogivuwe.onlinewebshop.net/pocket_surgery_gum.pdfIn PDF document text
    • http://gafodix.myartsonline.com/evh_5150_iii_50w_headphones.pdfIn PDF document text
    • http://kamegil.epizy.com/339309046.pdfIn PDF document text
    • http://mewokusexet.epizy.com/tubekisamufilikarukagawu.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_off0000d44f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD44F 5408 bytes
SHA-256: bd4ca591990fd9ea8e4a92df787134642639a06e0cbf15fd744e51a874807b32
font_01_sfnt_off0000e6c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6C6 10368 bytes
SHA-256: 0181ac83b661bcc50ac3be64ae8b477c63a7e32080a7267952a63a41014e3ff4