Malicious PDF — malware analysis report

Static analysis result for SHA-256 c874f541490fb51e…

MALICIOUS

PDF

73.4 KB Created: 2021-02-25 15:18:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 014ffb8b783e386ebce62c69cefb070f SHA-1: 3369c1c7d443207bd2b869fff45a16f676c104cf SHA-256: c874f541490fb51eb4905bc49b8615922a52d0a911f3da703897cb92be5441d6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://baarspo.ru/award?keyword=technicolor+tc8305c+password PDF link annotation
    • http://trafikcezaodebayisi.com/voruripimumavuvufu3w9p4.pdfIn PDF document text
    • https://cdn.sqhk.co/bezakebijuk/gd4gdub/sisoruxadinurumarekoba.pdfIn PDF document text
    • http://astrohelp.space/stoner_john_williams_synopsisp0wz5.pdfIn PDF document text
    • http://laxana.ru/dorufadiduwisii5ife.pdfIn PDF document text
    • https://cdn.sqhk.co/sesexibanobu/hggi0jj/traffic_racer_city_highway_mod_apk.pdfIn PDF document text
    • http://noverst.xyz/6079985144cse9p.pdfIn PDF document text
    • http://zakazuvanadoze.66ghz.com/motorola_surfboard_extreme_sbg6580_firmware_update.pdfIn PDF document text
    • http://peroruse.iblogger.org/dilumasekusobigijiweni.pdfIn PDF document text
    • https://cdn.sqhk.co/jixavome/OlMvjdL/cadena_100_lista_2019.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pelebirepopo.onlinewebshop.net/42690110710.pdfIn PDF document text
    • http://sizurixujiboxen.rf.gd/9689896615.pdfIn PDF document text
    • http://diwavubodinaroj.myartsonline.com/best_smart_board_for_classroom_in_india.pdfIn PDF document text
    • https://s3.amazonaws.com/suzujewa/sisexekulumalevodewarab.pdfIn PDF document text
    • http://dasubaweno.rf.gd/ribetibekitazorujosut.pdfIn PDF document text
    • http://resisimokopi.epizy.com/fabusiwodukajafalaragez.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_off0000da9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA9C 5824 bytes
SHA-256: b682532be0e37ffdb20fe31471e150afcda44fdc4acc3580cbefa3cfbff01cc1
font_01_sfnt_off0000ee79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE79 13460 bytes
SHA-256: 1363b0ea176c1678a9529bb52d247aa38dd378649d82d549c9dc67572ea3438e