Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e036f19aa1b63ae…

MALICIOUS

PDF

77.1 KB Created: 2021-04-06 09:40:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c68773d64b5a1cf73c46d5ff399af16f SHA-1: d422e7c267bb4302c4099c08769dce24d2ea9a6f SHA-256: 5e036f19aa1b63aec237aec2969b18428b0b3fd6979d6fa9a426117eb681d0f6
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains embedded URIs that point to external websites, suggesting a phishing or credential harvesting attempt. The presence of these external links aligns with the Spearphishing Attachment technique, as the PDF likely serves as a lure to direct the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://ponafet.ru/strik?utm_term=safety+dance+glee+concert
    • http://copytoshka.ru/how_much_does_it_cost_to_workout_at_planet_fitness_for_one_dayewmsz.pdf
    • http://todayshop.website/754298154706ehy9.pdf
    • https://cdn.sqhk.co/norifasil/Wbjd2ge/wazebojazokokapemas.pdf
    • https://cdn.sqhk.co/gutifusuf/jhSidWQ/49994537026.pdf
    • https://cdn.sqhk.co/kutogudofi/eQEaUij/download_tapsonic_world_champion_mod_apk.pdf
    • http://kleomaften.online/jamisigopadnk.pdf
    • http://naxuvazexipok.sportsontheweb.net/poem_barolong_seboni.pdf
    • http://vumajufeboxidik.mywebcommunity.org/38417030120.pdf
    • http://cccckkkkkdd.space/avanza_veloz_matic_vs_manualcmpxg.pdf
    • https://cdn.sqhk.co/muditazu/higebia/82370558837.pdf
    • http://topstop.site/cen-tech_multimeter_replacement_leadsud66o.pdf
    • http://urro-hu.com/864889927234fi84.pdf
    • http://raicen.com/poxutetorumexetezemaf5yxkh.pdf
    • http://dimax.website/allen_bradley_powerflex_525_manual14qhu.pdf
    • http://ashotik.space/video_live_wallpaper_android_app5iwdb.pdf
    • http://titanovyi-filtr.ru/wavelength_formula_unitshm07z.pdf
    • http://negedibomul.sportsontheweb.net/commercial_aquaponics_design_plans.pdf
    • https://cdn.sqhk.co/fokofike/ghfhidX/cardiac_tamponade_journal.pdf
    • http://ozalupa.space/heizer_y_render_2009cqd18.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/jotizifime/80641511664.pdf
    • http://tagijonegularol.myartsonline.com/harley_quinn_comics.pdf
    • https://s3.amazonaws.com/tuxalowafokuvo/94808894486.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_off0000efe0.bin
46a32de914d7bced6c4e1dab5a3e50a6b525b40170374d6744b83655b6bc4061
pdf-font-stream PDF embedded font (sfnt) at offset 0xEFE0 5216 bytes
font_01_sfnt_off000101ba.bin
5f608d6dcffd021f0e76692bcaf1b470ed717c04682bc8b117a6a3ff8a4f2761
pdf-font-stream PDF embedded font (sfnt) at offset 0x101BA 10520 bytes