Malicious PDF — malware analysis report

Static analysis result for SHA-256 6982d5cfdcfc4426…

MALICIOUS

PDF

68.7 KB Created: 2021-02-25 22:05:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 0ff37e9b18f9fd0f227c197c8d48277e SHA-1: b60982166805bc205fe1eaf845655f14de3cde63 SHA-256: 6982d5cfdcfc4426ad18c111c4e1cd2515d73a6dbb24ee2570a0de7bd237d705
184 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wix?keyword=the+guide+by+rk+narayan+mcq In PDF document text
    • http://nowukusox.mypressonline.com/2007_jeep_grand_cherokee_5.7_hemi_specs.pdfIn PDF document text
    • https://kerijene.weebly.com/uploads/1/3/4/3/134367262/ef8bd8b633abb47.pdfIn PDF document text
    • https://demepeli.weebly.com/uploads/1/3/4/6/134632839/zowirojabi-kukedumufen-nikoramapikavon-gaxijuposigafa.pdfIn PDF document text
    • https://mejodedasebedo.weebly.com/uploads/1/3/4/7/134725949/jajizeludariko_giwimuvog_kikejunok.pdfIn PDF document text
    • https://reravojune.weebly.com/uploads/1/3/1/4/131406269/madibet-xuwimobagad.pdfIn PDF document text
    • http://powajaxib.medianewsonline.com/how_do_i_pair_my_costco_hearing_aids.pdfIn PDF document text
    • https://jizufolikoni.weebly.com/uploads/1/3/4/3/134349493/wanoxan_wuwefafeduze_xudagomal.pdfIn PDF document text
    • https://jokuduzasaru.weebly.com/uploads/1/3/1/3/131381103/miloge.pdfIn PDF document text
    • https://falojaba.weebly.com/uploads/1/3/0/7/130776150/fidanovenetawupo.pdfIn PDF document text
    • http://nanewak.iblogger.org/washington_state_patrol_accident_report_online.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/tizowodifi/javunolutujed.pdfIn PDF document text
    • https://s3.amazonaws.com/rizijubovapuk/82364801329.pdfIn PDF document text
    • https://s3.amazonaws.com/babetafaperaxov/classic_arcade_games_for_mac_free.pdfIn PDF document text
    • https://s3.amazonaws.com/boxujetanonikuv/sentence_structure_test_with_answers.pdfIn PDF document text
    • http://jimibidubarabus.epizy.com/nugajekufoduva.pdfIn PDF document text
    • http://jasunusemoki.onlinewebshop.net/what_is_ms_word_format_resume.pdfIn PDF document text
    • http://sabukizazuse.epizy.com/ciara_i_bet_video_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/mexesazaxasa/politik_pluralisme_indonesia.pdfIn PDF document text
    • http://bawepefafaz.rf.gd/36803240755.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_off0000d019.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD019 5524 bytes
SHA-256: fd882f42e146a7f15cec802aa761adfabdffd57718a3bcd12f58da9a18697f04
font_01_sfnt_off0000e2bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2BC 10204 bytes
SHA-256: 63fc8fbd82900eba835668f4c13e2a4d8480eedfe3f31ec659a7e71dc9103725