Malicious PDF — malware analysis report

Static analysis result for SHA-256 735046ef1890d6ed…

MALICIOUS

PDF

77.3 KB Created: 2021-03-16 22:38:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3cb8a6d65da2a00bc1e239c44b991f1a SHA-1: 433d365d78b3dd633d8d12056bced38a4300ef4c SHA-256: 735046ef1890d6ed6333a951b56b268c1d1a6244ca0063cd2a95a935b40f566f
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, 'resalured.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, contains references to game titles and application download guides, suggesting a lure to trick users into visiting the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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://resalured.ru/wix?keyword=free+rider+3+unblocked
    • https://cdn.sqhk.co/pabelewexo/cDkje6I/relekevorikakazez.pdf
    • http://trackengine.host/81426161028ax5qt.pdf
    • http://fringigejy.site/84748312222rc2fx.pdf
    • http://gutprod.xyz/flightaware_android_flight_tracker_appi3ovl.pdf
    • http://iceteas.space/56554803206ziyov.pdf
    • http://workbykoder.xyz/bumafokatekozatazul0gwu.pdf
    • https://cdn.sqhk.co/forinabam/X6gfA8d/file_manager_apps_download_install_for_jio_phone.pdf
    • http://senteber.site/a_clash_of_kings_mod_install_guide3gzc3.pdf
    • http://scarcebook.com/526438760195tkqk.pdf
    • http://stassikorskyi.com/how_to_draw_cute_christmas_things_easyleiw0.pdf
    • https://cdn.sqhk.co/buzunonoj/UjbkXSt/kowudetabododusiw.pdf
    • http://zanapipok.getenjoyment.net/fagotelawuvabexakakas.pdf
    • https://cdn.sqhk.co/pedajobu/bt9ribs/onedrive_download_limit.pdf
    • http://detonic-hypertonie.website/reflex_klystron_theoryvjue0.pdf
    • http://varietystore.website/69956865480kv0c4.pdf
    • http://didazema.mypressonline.com/tazugobaten.pdf
    • http://sewakasatixori.medianewsonline.com/84297726931.pdf
    • http://copyrightnotice-ig.com/dell_inspiron_3520_price_in_pakistan13ut4.pdf
    • http://uscarins.info/how_to_clean_cuisinart_thermal_coffee_carafew3h76.pdf
    • http://redpandarecycling.com/938498333v5koi.pdf
    • http://connexion-amelii.xyz/betadine_scrub_and_paint_guidelinesptby7.pdf
    • https://cdn.sqhk.co/kizofapekeku/Ahj6VXj/novelfull_app_down.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/sitozi/plague_inc_apk_espaol_1._10._1.pdf
    • https://s3.amazonaws.com/kaxukok/how_to_draw_caricatures_step_by_step_for_beginners.pdf
    • https://s3.amazonaws.com/babetafaperaxov/bokarotusapijewabon.pdf
    • https://s3.amazonaws.com/gofilafixu/household_chores_esl_worksheets.pdf
    • https://s3.amazonaws.com/zukogi/convert_byte_array_to_base64_string_android.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f2b5.bin
fdc45a22a66c53d481af711090b35f78d87fa8f3591d18706f59946728a5905f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF2B5 4868 bytes
font_01_sfnt_off00010359.bin
83b7525cb558588a7bff1d6d401fd9ecd7aeba2f4c5171ec29420e4f932c7ea3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10359 10788 bytes

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