Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d4b18412c377435…

MALICIOUS

PDF

68.1 KB Created: 2021-03-05 12:02:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 835e73ee4816e7c4484daf992987c252 SHA-1: 2171ca0bf6e4f975527a97cf55460f3fb49de10a SHA-256: 4d4b18412c3774353d4898fe0e26ad0190afcfdc06de8ead52158016042e7f2b
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 6

  • 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 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.
  • 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://botokaw.ru/award?keyword=honeywell+wireless+focuspro+6000+system+kit PDF link annotation
    • https://cdn.sqhk.co/balaragu/yRHyGia/movies_on_netflix_right_now_australia.pdfIn PDF document text
    • https://cdn.sqhk.co/kitujesijak/RiAhajE/veteran_car_run_2019_accident.pdfIn PDF document text
    • https://cdn.sqhk.co/kinibemazoz/Wjh7hsN/marojexefe.pdfIn PDF document text
    • https://cdn.sqhk.co/satofapo/dYihdhf/htc_sense_animated_weather_widget.pdfIn PDF document text
    • https://cdn.sqhk.co/dibirolinu/fgpggOz/tatizoxajupivibaxezisuna.pdfIn PDF document text
    • http://nosilekexiwot.mywebcommunity.org/rozem.pdfIn PDF document text
    • https://bugituwixumanuz.weebly.com/uploads/1/3/4/7/134722584/nusugusiverujutalu.pdfIn PDF document text
    • https://cdn.sqhk.co/zabeluzitema/zf2gcYk/58170610836.pdfIn PDF document text
    • https://cdn.sqhk.co/remudejifi/ghiajjc/billy_paul_war_of_the_gods_review.pdfIn PDF document text
    • https://cdn.sqhk.co/ledirevobep/7CietXk/bad_trip_stream.pdfIn PDF document text
    • https://kuwepokipeluzil.weebly.com/uploads/1/3/0/9/130969114/fd28e8ae04847e7.pdfIn PDF document text
    • https://wamazuwo.weebly.com/uploads/1/3/1/3/131380988/1347248.pdfIn PDF document text
    • http://bumasujofoj.getenjoyment.net/toto_aquia_iv_washlet_s550e_review.pdfIn PDF document text
    • https://cdn.sqhk.co/xaselavub/NAFjbhp/podcast_app_iphone_update.pdfIn PDF document text
    • https://cdn.sqhk.co/xetilibul/igggDd9/how_to_enable_smart_assistant_in_realme_c3.pdfIn PDF document text
    • https://zenavepofiwu.weebly.com/uploads/1/3/1/6/131607810/b2ce8d7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/d55118fe-9ad5-4dc1-92c1-856e90bff34e/highway_infrastructure_safety_services.pdfIn PDF document text
    • http://dezobod.onlinewebshop.net/hl-2270dw_driver_is_unavailable.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/318c0f05-cde9-46b2-b1b3-d2b9fc1a1024/how_to_install_evenflo_sonus_car_seat_forward_facing.pdfIn PDF document text
    • http://nopawalaxuwaw.onlinewebshop.net/lyles_ultimate_diet_2.0.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c4110795-be8d-4bff-a5fc-54ce3030352c/fidagudepigo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6960ed4d-1683-4e8c-bdf3-023b9aff7da2/rosemount_3051s_pressure_transmitter_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1f93f44d-e580-4a4e-9e5c-8aecf0df7470/89880619798.pdfIn PDF document text
    • http://sajomapujozokux.onlinewebshop.net/invicta_watches_for_sale_canada.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c42a9b67-a6fe-4b44-ab09-38246ae89649/duralast_jump_starter_900_charger_manual.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_off0000cb42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB42 5468 bytes
SHA-256: 3febcd93e303ae19df2d30134bd2d946d369b827fb99d952119309e527b38ab8
font_01_sfnt_off0000dde5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDE5 10420 bytes
SHA-256: 3cbd34af456dd4ee8a6ac5da6bb7576cbb642dd50a87ded131d9130483841bae