Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ec34e4d2993b7f5…

MALICIOUS

PDF

70.2 KB Created: 2021-03-01 02:55:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-01
MD5: 1395c0510bbe03f7fd625f621c7ad875 SHA-1: 119bb8036bbe1d68fe4c8655da7c45ffad270b37 SHA-256: 3ec34e4d2993b7f5a9e337eff59d1c4aafdf5dc00e7320977d22939b7852b156
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://yafferge.ru/award?keyword=can+you+program+xbox+one+remote+to+tv In PDF document text
    • https://cdn.sqhk.co/zifalulog/jb9lRgi/lalezosax.pdfIn PDF document text
    • https://cdn.sqhk.co/luwesefizi/ghpZhjE/balloon_car_racer_toy.pdfIn PDF document text
    • https://cdn.sqhk.co/sononipo/jgf6ahg/fidget_spinner_pro.pdfIn PDF document text
    • https://cdn.sqhk.co/revinoxu/awjiUif/botexosasuboxagafagos.pdfIn PDF document text
    • https://cdn.sqhk.co/furaxofir/jf5ggij/65538321199.pdfIn PDF document text
    • https://cdn.sqhk.co/xajamenujo/hjAzhbZ/xilirupoxebufubelukufefem.pdfIn PDF document text
    • https://cdn.sqhk.co/vemegunir/jaifgi7/spaceflight_simulator_rocket_blueprints_download.pdfIn PDF document text
    • https://cdn.sqhk.co/xemugugafot/Hlqunjb/bullet_shoot_3d_model.pdfIn PDF document text
    • https://cdn.sqhk.co/vazoguzo/giimiel/counting_numbers_for_kids._1_to_100_worksheet.pdfIn PDF document text
    • https://jasasexu.weebly.com/uploads/1/3/1/1/131163864/bubobonasezebu.pdfIn PDF document text
    • https://cdn.sqhk.co/dipewoduge/Y8tgehg/suzabev.pdfIn PDF document text
    • https://cdn.sqhk.co/bewewojiwo/PhbiiAX/sticker_maker_stickers_app.pdfIn PDF document text
    • https://cdn.sqhk.co/fejukomus/Bihibhh/whatsapp_messenger_download_apple.pdfIn PDF document text
    • https://regakoxunurur.weebly.com/uploads/1/3/4/3/134380337/zapubejubijuxa_memafad_modofuzititad_wepijub.pdfIn PDF document text
    • https://cdn.sqhk.co/temejikowewa/jcFdhca/74821903707.pdfIn PDF document text
    • https://cdn.sqhk.co/pubodegosog/ghfgcia/nbc_sports_live_stream_free_roku.pdfIn PDF document text
    • https://cdn.sqhk.co/rapovebakeb/dhjgfuT/7019956313.pdfIn PDF document text
    • https://pisesiwez.weebly.com/uploads/1/3/1/4/131453260/tukebegito_tebano_bevogudulazo.pdfIn PDF document text
    • https://cdn.sqhk.co/giripiponi/gihific/37362350531.pdfIn PDF document text
    • https://fepobiwebefu.weebly.com/uploads/1/3/4/5/134592484/8901709.pdfIn PDF document text
    • https://cdn.sqhk.co/bupewazadufa/SYVidja/lowijaduv.pdfIn PDF document text
    • https://cdn.sqhk.co/turanexode/dib1gin/window_glass_breaking_sound_effect_free_download.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d8b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8B6 5204 bytes
SHA-256: c630011f9abbae5796d41c8f6320852aa7c7f4853839d618decfe91c1103ea22
font_01_sfnt_off0000ea63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA63 9644 bytes
SHA-256: f086ed1d487272be94ddd0c84a1e998f208212c1d407a34571c103712a7c4d94