Malicious PDF — malware analysis report

Static analysis result for SHA-256 15605e93f0954722…

MALICIOUS

PDF

74.6 KB Created: 2021-02-25 02:43:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: b5d99ffe7b44c2298e06a451e5873ffc SHA-1: a1a6787075da7dddae352f6f498f088cdbb2853a SHA-256: 15605e93f09547227c0b52100ea2846574f1fe15141c01e185fe61e0c3066981
126 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
  • 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://seumenha.ru/wix?keyword=cell+size+lab+answer+key PDF link annotation
    • http://cg-designer.xyz/resojibepugovapufixek3v4al.pdfIn PDF document text
    • https://cdn.sqhk.co/nupopobax/AheifUN/coin_master_daily_free_spin_link_app.pdfIn PDF document text
    • http://getubij.66ghz.com/gba_emulator_apk_android_1.pdfIn PDF document text
    • https://cdn.sqhk.co/vimexuda/ieCGKjj/lyrical_definition_adjective.pdfIn PDF document text
    • http://zoneeuro.pro/779161175927qsv2.pdfIn PDF document text
    • http://tesocoin.online/how_to_clean_the_outside_of_a_vermont_castings_wood_stovecennz.pdfIn PDF document text
    • http://lalashoppen.online/mosofaruzesirekuzuwukovimr63j9.pdfIn PDF document text
    • https://cdn.sqhk.co/guzoladip/qYYsjcB/anonymous_chat_app.pdfIn PDF document text
    • http://gmetry.online/pivumasugupujopesusigemig62kjy.pdfIn PDF document text
    • http://lidlid.xyz/95023370877f4xei.pdfIn PDF document text
    • http://skout.tech/44554346167rbxto.pdfIn PDF document text
    • https://cdn.sqhk.co/midipumep/DFIiibB/38986893504.pdfIn PDF document text
    • https://cdn.sqhk.co/zinoliwomi/jjap2jc/bluffing_games_online.pdfIn PDF document text
    • https://cdn.sqhk.co/lapitobexeva/hgXiahd/lijuzokidikoralofi.pdfIn PDF document text
    • http://chambrehq.xyz/nileruzulerugapqj8zu.pdfIn PDF document text
    • http://komaxinatobofe.medianewsonline.com/45774795357.pdfIn PDF document text
    • http://fitit.space/buoyage_systempti16.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://varuxaze.epizy.com/kenson_teeth_mould_guide.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_off0000e797.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE797 5032 bytes
SHA-256: 4779c377bb6eff72eaffcbc66d9f52dc3e86373507be08894a2cd51843671478
font_01_sfnt_off0000f8e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8E1 10844 bytes
SHA-256: 37bc01384813160b1ee8800e8dd96c5a9d1c3f244200ce8bc1d25b4d379342bf