Malicious PDF — malware analysis report

Static analysis result for SHA-256 6747e21df4f0bdb0…

MALICIOUS

PDF

84.0 KB Created: 2020-12-31 22:51:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 7464cde48f09cc240ec14b41ad0f7eba SHA-1: b10d06ae99da34d25281726de39a0a8de8bfd8e3 SHA-256: 6747e21df4f0bdb0b392b888fdcce2a467d8305dc84925ad621b266c62332fd9
154 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, indicating a phishing or malware distribution attempt. The embedded content, though heavily obfuscated, suggests a lure related to streaming device troubleshooting. The ML classifier and ClamAV detection strongly support the malicious nature of this file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • 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://cctraff.ru/123?utm_term=showbox+not+loading+on+firestick In PDF document text
    • https://cdn.sqhk.co/fasixazijaz/ZqiiigQ/download_aplikasi_video_voice_changer_fx.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372358/normal_5fedff1284df2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385213/normal_5f90f236bf19e.pdfIn PDF document text
    • https://cdn.sqhk.co/lexuxeza/bhjicVJ/huey_freeman_boondocks_voice_actor.pdfIn PDF document text
    • https://cdn.sqhk.co/wogigixa/gjhd7Aq/daxidokugumezajinujifeme.pdfIn PDF document text
    • https://cdn.sqhk.co/monasomeb/W9LTeQ3/radio_italia_anni_60_milano.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/tobaziw/ragnarok_mobile_build_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/tanikanaw/tabuzexamumifesadiwilobij.pdfIn PDF document text
    • https://s3.amazonaws.com/wizuluworafid/rofevatutivuduvukapisi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/377ef4c9-9eeb-4c7e-b627-4d783a82b4d7/nimajibaxa.pdfIn PDF document text
    • https://s3.amazonaws.com/lizuseguwix/centos_7_command_line_cheat_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/vixuwogetiv/62539705419.pdfIn PDF document text
    • https://s3.amazonaws.com/fatikonavori/60476220572.pdfIn PDF document text
    • https://s3.amazonaws.com/nokiwovowus/total_warhammer_bretonnia_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/jinabom/bexonajumabewofidub.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/72113171661.pdfIn PDF document text
    • https://s3.amazonaws.com/befarekogol/49952039661.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/88d2a96d-31bc-4abc-a95a-5772f653869f/dragon_city_mod_apk_download_free.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_off00010949.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10949 5748 bytes
SHA-256: caca2e5edf6b17b1e641193971e28baf8c8d675f03bd72f0e7b6ddc4d121c4ca
font_01_sfnt_off00011cef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CEF 11160 bytes
SHA-256: 1e8e962e9de3e84a5d1b00649d03b33ee2f7089cee7b6869c580344188de6369