Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7e9ed5455bb3e20…

MALICIOUS

PDF

70.8 KB Created: 2021-02-23 17:45:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f03db2417055ad7afafde79d6311f7d9 SHA-1: 7d93cb1973dcb68d860d3f78901bdbaf466a174a SHA-256: d7e9ed5455bb3e205360b649e581d8aad9d0e90d41c64e82af100cd0bcb56bc3
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://jottigo.ru/wb?keyword=how%20to%20find%20slope%20intercept%20form%20with%20two%20given%20points PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4413226/normal_60239d3890d28.pdfIn PDF document text
    • https://cdn.sqhk.co/nivusenavazo/4ijigdB/55588454423.pdfIn PDF document text
    • https://cdn.sqhk.co/tiwopaperuv/QhfhaQd/83262578104.pdfIn PDF document text
    • http://it50disconto.info/71645094899l0u9m.pdfIn PDF document text
    • https://cdn.sqhk.co/vumorumuvogi/chdm5nj/41566792997.pdfIn PDF document text
    • http://rating-bookmaker.ru/ludo_championship_mod_apkfnbbo.pdfIn PDF document text
    • https://cdn.sqhk.co/kinanekoxo/bA5hgBM/10373731767.pdfIn PDF document text
    • https://cdn.sqhk.co/fesakesovoka/qLZjdjd/3164358089.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421641/normal_5fd0ed2bc2d29.pdfIn PDF document text
    • http://lnstagramsecurity.net/fupidamaxedobusavivotesanb4ysq.pdfIn PDF document text
    • https://cdn.sqhk.co/xalibolopov/crnFqN6/subdivision_infinity_3d_space_shooter_apk.pdfIn PDF document text
    • http://bigakeka.iblogger.org/nawufuxefijixor.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474980/normal_60233aab68c84.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369163/normal_5fe3893b9e235.pdfIn PDF document text
    • http://kernig.store/star_citizen_how_much_do_ships_cost_in_gamee7o34.pdfIn PDF document text
    • http://thrivewebs.com/ligogiwebinitunuxupmcegc.pdfIn PDF document text
    • https://cdn.sqhk.co/josipinu/cGispY7/test_pneu_sportmax_gpr-_300_dunlop.pdfIn PDF document text
    • https://cdn.sqhk.co/kajipazuto/c9ZgdyH/gogavotorubapip.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_off0000d5c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5C7 5472 bytes
SHA-256: 9ce57eabd627d5d4c9763954596d61029e2f35aa63fe0c55df487bba26f2c592
font_01_sfnt_off0000e85b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE85B 11032 bytes
SHA-256: dc8d92e69caa0445e5ee40253a1adb6bff79ebcf1c96760e3aebd660b45beccd