Malicious PDF — malware analysis report

Static analysis result for SHA-256 470abe4d69c1017c…

MALICIOUS

PDF

68.8 KB Created: 2021-03-02 16:21:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 414769d1af8c0973f6add29306f0b9a9 SHA-1: 5828fa5e4b707bc38a93f79c4c192828e0803b2d SHA-256: 470abe4d69c1017c1e8a2be9570cd1d3cfa7d37eedcd288b0ad8d92873cc4d11
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://kuzutuzo.ru/award?keyword=members+mark+5+burner+grill+assembly PDF link annotation
    • https://cdn.sqhk.co/rutesawir/CRAgg4S/gaxiposepatadup.pdfIn PDF document text
    • https://cdn.sqhk.co/tajiwikiter/hjiihgI/international_pizza_day_2020_nz.pdfIn PDF document text
    • https://dojilosadokadog.weebly.com/uploads/1/3/4/8/134890500/vukojagi.pdfIn PDF document text
    • https://cdn.sqhk.co/xuwadezab/cejdGKg/71320621793.pdfIn PDF document text
    • https://sibevuguz.weebly.com/uploads/1/3/4/8/134859718/7e2a4d7.pdfIn PDF document text
    • https://cdn.sqhk.co/nosimasiv/icWigV6/wormate._io_zoom_hack_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/kepebeso/ehdichg/52051077425.pdfIn PDF document text
    • https://resonorur.weebly.com/uploads/1/3/4/8/134874279/dopebatawulima.pdfIn PDF document text
    • https://cdn.sqhk.co/kubafipefo/Kzmihgc/steam_gift_card_digital_delivery.pdfIn PDF document text
    • https://cdn.sqhk.co/bepemuno/je6QjfV/29536264481.pdfIn PDF document text
    • https://cdn.sqhk.co/nuzitomizaj/ggdYHii/20223787705.pdfIn PDF document text
    • http://xufededubumavif.scienceontheweb.net/94052807309.pdfIn PDF document text
    • http://junumidutuzakox.getenjoyment.net/symbols_of_the_12_apostles.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bufijonewufo.onlinewebshop.net/way_to_clean_a_waffle_maker.pdfIn PDF document text
    • http://tososite.onlinewebshop.net/how_to_fix_a_craftsman_air_compressor.pdfIn PDF document text
    • https://s3.amazonaws.com/fuzafuzeruwit/zeximateb.pdfIn PDF document text
    • http://nuwadolonopip.onlinewebshop.net/psalm_51_wisdom_in_the_secret_heart.pdfIn PDF document text
    • https://s3.amazonaws.com/sigobija/motetotapewotuza.pdfIn PDF document text
    • https://s3.amazonaws.com/xabalaru/zafatemefinimiporis.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_off0000ce1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE1D 5440 bytes
SHA-256: 10ae7b6cc3a46aee420bfdc1812a2786a847e2b91e0db3fa3fe4d349ade8d46e
font_01_sfnt_off0000e09d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE09D 11296 bytes
SHA-256: 12b219a19d3cd821f9f9a37deff045827fe9deae19e7e65e3e290406f2d01187