Malicious PDF — malware analysis report

Static analysis result for SHA-256 20d890c3d8877995…

MALICIOUS

PDF

79.0 KB Created: 2021-04-11 15:19:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 3d3b98cd44877330e6b9159dad6cdd04 SHA-1: 68c86ee4d698494be7aece92127f8da448d9916e SHA-256: 20d890c3d887799513e916fc1ec010acf50cf4c4444ad1bcc9565bd0bf3c9217
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains an embedded URI that redirects to a suspicious URL, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the presence of external URIs and the document's classification as a phishing trojan suggest it's designed to lead the user to a malicious site, potentially for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://kuzutuzo.ru/strik?utm_term=in+the+heights+movie+release+date PDF link annotation
    • https://cdn.sqhk.co/jojojidatun/yZfjdij/8625625358.pdfIn PDF document text
    • http://hookup153.fun/botamunumijakogofipike78sr3.pdfIn PDF document text
    • https://cdn.sqhk.co/wunasesev/JAi9bhc/free_music_download_app_offline_for_iphone.pdfIn PDF document text
    • https://cdn.sqhk.co/piwixesiwufo/3gdjdwN/escape_room_the_game_app_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/dukasavubu/btWGHii/19327350269.pdfIn PDF document text
    • http://probnik1313.tech/malezofowerus86ks0.pdfIn PDF document text
    • https://cdn.sqhk.co/sobetevod/heYhjhg/lukibawisufop.pdfIn PDF document text
    • https://cdn.sqhk.co/naziwixolagu/jjam5R8/solar_system_planets_size_video.pdfIn PDF document text
    • https://cdn.sqhk.co/kugefaxeker/ihcchjL/76162538040.pdfIn PDF document text
    • https://cdn.sqhk.co/vujenibolo/d0idal8/python_dictionary_examples_for_beginners.pdfIn PDF document text
    • http://xamoxipuwizutux.scienceontheweb.net/desawisuzizefafat.pdfIn PDF document text
    • https://cdn.sqhk.co/jemitaso/bKCYhGV/naruto_fighting_games_online_2_player.pdfIn PDF document text
    • https://cdn.sqhk.co/tufiroxova/b4jdjjS/carnivores_ice_age_gameplay.pdfIn PDF document text
    • http://mesutilixuta.sportsontheweb.net/paxelabapijijemididagezu.pdfIn PDF document text
    • https://cdn.sqhk.co/noneniwetav/gP4zjhv/xetisufujut.pdfIn PDF document text
    • http://xxlmature.site/trimtuf_reviews_bodybuildingpd27v.pdfIn PDF document text
    • https://cdn.sqhk.co/dukosisevu/6qifRhd/ludelumewozi.pdfIn PDF document text
    • https://cdn.sqhk.co/nezafomura/RDnG35s/f_stop_gallery_pro_paid_apk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/40dda636-1609-40cb-a863-f0dc73a434bc/boy_scout_camping_merit_badge_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9badcddf-7c01-459f-993e-e9d86624039f/wd_my_cloud_ex2_install_linux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6330d20-2c3a-444d-aab7-22f86860a300/78678476834.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_off0000f6e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6E5 5236 bytes
SHA-256: c2cd7f0121677fa585149db058fcae703d15f59cb6da97fcd9b7b08dc1ae517c
font_01_sfnt_off00010890.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10890 11220 bytes
SHA-256: 81f7657bb4362628141befd7cf620231ed6866cbef0ca80287c3dbfa6d9c2aa1

Open this report in the interactive analyzer, or submit your own file for analysis.