Malicious PDF — malware analysis report

Static analysis result for SHA-256 b221fbbaa64b2ab7…

MALICIOUS

PDF

77.7 KB Created: 2021-03-02 01:23:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 3f3f5aebfba207d5c3bb9a985e6ab0f7 SHA-1: ba1c64804d0347ea1389c68460ca504c0f974c84 SHA-256: b221fbbaa64b2ab749078259b40fa81afe92e59a2fc8ad21b768ca192766dca3
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://seumenha.ru/wix?keyword=2008+scion+xb+manual PDF link annotation
    • http://talemine.getenjoyment.net/53132584907.pdfIn PDF document text
    • https://tejukikefuxod.weebly.com/uploads/1/3/4/7/134703803/loxawavotivetixiwen.pdfIn PDF document text
    • https://sufifova.weebly.com/uploads/1/3/4/7/134736026/tuxawujafif_zurogo.pdfIn PDF document text
    • http://sugameloxufe.mywebcommunity.org/internal_audit_jobs_in_south_africa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487918/normal_602c710aa90a5.pdfIn PDF document text
    • https://rigawegafo.weebly.com/uploads/1/3/4/5/134587157/gofebekadenige.pdfIn PDF document text
    • http://jevafurevozu.mygamesonline.org/are_audio_technica_good.pdfIn PDF document text
    • https://cdn.sqhk.co/xepubijiko/3jbvRhi/color_by_number_pixel_art_online.pdfIn PDF document text
    • https://cdn.sqhk.co/sisalubitot/jGqjigh/streamnow_live_video_streaming_app.pdfIn PDF document text
    • https://nubipudovolena.weebly.com/uploads/1/3/4/0/134012318/d886016eba.pdfIn PDF document text
    • http://nejupike.mygamesonline.org/43214219456.pdfIn PDF document text
    • https://cdn.sqhk.co/welosezu/4ghMSii/ethiopian_airlines_cargo_fire.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nukilaba.myartsonline.com/60164299987.pdfIn PDF document text
    • http://vilatelisoto.onlinewebshop.net/genie_excelerator_2_keypad_programming.pdfIn PDF document text
    • http://rorazizaxaf.atwebpages.com/what_are_the_3_core_leader_competencies.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_off0000f361.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF361 5428 bytes
SHA-256: f9e3482ce6d22047d2a875000162e549117333c44c1134c75a60b6d72dc897cf
font_01_sfnt_off000105c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105C3 10720 bytes
SHA-256: c7a4ed40fb98a36b033ca0c9dd9cea1e45accc71709862aa931a99acc2d2bc46