Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c14c488e73e09d2…

MALICIOUS

PDF

71.4 KB Created: 2021-02-24 13:05:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 27963ec705e27adc8ffd082d99c74ad9 SHA-1: 0e79f28616bc2e8ab7cb2600df8890dc04708b67 SHA-256: 3c14c488e73e09d220093ad3504d1950f0ceba5d5ab4847f6462c243a4bdb0c0
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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 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://druttle.ru/wix?keyword=unit+4+progress+check+mcq+ap+bio PDF link annotation
    • https://cdn.sqhk.co/wuzufoxo/jejihb3/elderly_cat_staring_into_space.pdfIn PDF document text
    • http://contentmedialiteracy.com/95670251425j828u.pdfIn PDF document text
    • http://yoga-italy.space/edoome_iniciar_sesion7gxdj.pdfIn PDF document text
    • https://cdn.sqhk.co/rugofufol/4hizRhb/minecraft_pe_build_battle_server_code.pdfIn PDF document text
    • https://xamoxuwubedus.weebly.com/uploads/1/3/2/8/132814415/427582.pdfIn PDF document text
    • https://cdn.sqhk.co/zivalutapa/Siif41J/monster_school_temple_run_5.pdfIn PDF document text
    • https://femesavez.weebly.com/uploads/1/3/1/3/131383434/japavedir.pdfIn PDF document text
    • http://trokot-roznica.xyz/information_security_risk_management_framework_templatem12j9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tuwafexom.epizy.com/burujen.pdfIn PDF document text
    • http://vogizopenukese.epizy.com/lumafokajawajeve.pdfIn PDF document text
    • http://givemuzod.epizy.com/reading_worksheets_for_1st_graders_free.pdfIn PDF document text
    • http://jikibepedoroto.epizy.com/crystal_reports_version_10_free.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_off0000d994.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD994 5724 bytes
SHA-256: ed307071ac031a4009fc12d723b38412f5b84a32948eb7516fe8945534bf35b2
font_01_sfnt_off0000ecef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECEF 10448 bytes
SHA-256: 40970a04835d676be7009d4a42cae4c08601d5eb1cb870b6e3edb15687102db1