Malicious PDF — malware analysis report

Static analysis result for SHA-256 37ff7674b78bc2a4…

MALICIOUS

PDF

71.9 KB Created: 2021-02-28 14:00:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: deb6bbe54df74acc500add25ac168cd7 SHA-1: 1a40a34e400746d3fdbad8519a3c093ab1335580 SHA-256: 37ff7674b78bc2a4054ae884b1760cf818daead9478207dbaa3232405d87c562
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://xezojetit.ru/award?keyword=translation+worksheets+grade+6+science PDF link annotation
    • https://cdn.sqhk.co/juvowisire/jdgiigc/bumavafofex.pdfIn PDF document text
    • https://cdn.sqhk.co/nosilaxuziz/FgebjdL/roweledivoxalunukodonax.pdfIn PDF document text
    • http://akmurzina.com/fit_test_insanity_excelmerdy.pdfIn PDF document text
    • http://dogalijun.scienceontheweb.net/65457422198.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385862/normal_602b8c1e3288a.pdfIn PDF document text
    • https://cdn.sqhk.co/wakunexigoto/gf9jaif/comedy_whatsapp_status_video_download_mirchi_status.pdfIn PDF document text
    • http://prostotit.site/zedugokp7az.pdfIn PDF document text
    • https://cdn.sqhk.co/ketejeti/YnYhchg/nintendo_switch_eshop_card_scanner.pdfIn PDF document text
    • http://jobediniberine.scienceontheweb.net/how_much_is_arbys_beer_battered_fish_sandwich_2020.pdfIn PDF document text
    • http://shop-profildoors.ru/tikesusakejaxecjhc8.pdfIn PDF document text
    • https://cdn.sqhk.co/mepapogivoma/0XWidjf/vikings_game_today_tv_channel.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/fuvidokibet/right_lentiform_nucleus_infarct_symptoms.pdfIn PDF document text
    • https://s3.amazonaws.com/retisovojor/amiga_os_4._1_fe_iso.pdfIn PDF document text
    • https://s3.amazonaws.com/mexesazaxasa/69256383176.pdfIn PDF document text
    • http://pidodexogejax.myartsonline.com/is_there_a_the_descent_3_movie.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_off0000db71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB71 5460 bytes
SHA-256: b830de0e5fb2083c0e0deb8e05a3eb768dc3ed1dd4f18c84b4084703fd89d64c
font_01_sfnt_off0000ee0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE0F 10308 bytes
SHA-256: c3a61810d752fc9dc520266df953a65bfdfbad523abdf2599aaa841c5999ba2c