Malicious PDF — malware analysis report

Static analysis result for SHA-256 0512f576822246e3…

MALICIOUS

PDF

69.5 KB Created: 2021-02-21 10:17:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 67cbeb039bf5f4948fd323ee3d8f35f0 SHA-1: 589fbc562113f80080cf2248454e5c1314991fb0 SHA-256: 0512f576822246e3955fe49e7fd44e5d23d9f5d7ae37b7fd6babf18b482213a7
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://jacksth.ru/wix?keyword=liberty+local+schools PDF link annotation
    • http://stickerrus.ru/17940330710oq2m3.pdfIn PDF document text
    • http://mozodulo.iblogger.org/besharam_film_all_song.pdfIn PDF document text
    • https://semuvobe.weebly.com/uploads/1/3/0/9/130969465/fanawokanem.pdfIn PDF document text
    • https://dukozajaxal.weebly.com/uploads/1/3/4/0/134017298/776651.pdfIn PDF document text
    • http://zisujetev.iblogger.org/quimica_inorganica.pdfIn PDF document text
    • https://gapefupekud.weebly.com/uploads/1/3/1/8/131871489/14d364.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://golujaxi.epizy.com/best_free_text_to_speech_reader.pdfIn PDF document text
    • http://peregal.epizy.com/jarasewotalinesofi.pdfIn PDF document text
    • http://lafeseg.rf.gd/essentials_of_statistics_for_the_behavioral_sciences_4th_edition.pdfIn PDF document text
    • http://desasivitusuzux.epizy.com/is_it_ok_to_eat_kimchi_when_pregnant.pdfIn PDF document text
    • http://vorofij.epizy.com/98150886388.pdfIn PDF document text
    • http://zifelibuvofaz.epizy.com/cross_platform_games_xbox_one_ps4_fortnite.pdfIn PDF document text
    • http://mabalipa.epizy.com/38103543884.pdfIn PDF document text
    • http://xonekalanalu.epizy.com/netofebaxefanivuvamevi.pdfIn PDF document text
    • http://vetovolixexa.epizy.com/music_album_art_creator.pdfIn PDF document text
    • http://tukutuxobolekub.epizy.com/kaxavamosubasenimolikoged.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_off0000d40e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD40E 5072 bytes
SHA-256: 2bef5cfdc558a2cd3f328dab9d64391964825306df1d6c6c82405d2845f9b0a5
font_01_sfnt_off0000e551.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE551 10556 bytes
SHA-256: 51ec219d53d6cf978c3dd29b2a66c00f8442077e0b4ffc9e43a6ecac5e1a98ec