Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0a38b6872758276…

MALICIOUS

PDF

72.1 KB Created: 2021-02-18 20:19:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5bcfc150d2551732907bade843e889dc SHA-1: 08a33c8690a6b6d6fced4dccb6d5fd33665e5e76 SHA-256: f0a38b687275827650ee14c5915f0c06347cfa78a0f5888b4574fd05e36cd271
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://leonvi.ru/wb?keyword=what%20are%203%20interesting%20facts%20about%20me PDF link annotation
    • https://cdn.sqhk.co/nadetajagupe/SQUjdev/zenozulomu.pdfIn PDF document text
    • https://cdn.sqhk.co/xevowuto/YYjaxgg/58258433225.pdfIn PDF document text
    • https://cdn.sqhk.co/bugolajoxodu/dhcY6n0/vewadekopojotavaxafade.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500679/normal_60026eab41cc1.pdfIn PDF document text
    • http://berozava.iblogger.org/7812207722.pdfIn PDF document text
    • http://juzagunugix.iblogger.org/atharva_veda_in_english_free.pdfIn PDF document text
    • https://cdn.sqhk.co/lebereme/gfgfAjj/adventure_dragon_ball_games.pdfIn PDF document text
    • http://goguduve.iblogger.org/live_accident_report_nsw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jezaxojipevu/pezebagebud.pdfIn PDF document text
    • http://zitepipugul.epizy.com/87382706017.pdfIn PDF document text
    • https://s3.amazonaws.com/wazorixekunafob/nikon_dx_vr_af-s_nikkor_18-55mm_lens.pdfIn PDF document text
    • https://s3.amazonaws.com/vavebufevodutob/esv_bible_version.pdfIn PDF document text
    • http://nolumuj.epizy.com/alphabet_worksheets_for_grade_r.pdfIn PDF document text
    • http://gumofiwulova.epizy.com/chandigarh_administration_recruitment_online_application_form.pdfIn PDF document text
    • https://s3.amazonaws.com/makixibawumebol/glitter_foam_sheet_rangoli.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_off0000db87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB87 5580 bytes
SHA-256: 3e47530248263aed95eb565ef7cad4cc7bedd6185042def62d2a0e26d2f4f322
font_01_sfnt_off0000ee6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE6B 10828 bytes
SHA-256: 9515ea56c7ccbebe2cddee8b7767caea115069df45e399c608d374832dc9f3f2