Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cdf3df81be4d10a…

MALICIOUS

PDF

68.5 KB Created: 2021-02-17 00:46:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 84acb819f75af4e86cf565dcddcd8b5f SHA-1: 55f3e86e96fdc5df5533f738464b6b70c52efb51 SHA-256: 2cdf3df81be4d10a26f30335e5a0d116a69a704a30e6f8b67d508aa957f3a766
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://jottigo.ru/wix?keyword=piedmont+region+in+georgia PDF link annotation
    • http://sokuzise.iblogger.org/76373996076.pdfIn PDF document text
    • http://com-copyrighit.com/oedipus_rex_critical_analysisf7en2.pdfIn PDF document text
    • https://wapixanap.weebly.com/uploads/1/3/1/1/131164574/9280331.pdfIn PDF document text
    • http://subeziti.22web.org/88146613723.pdfIn PDF document text
    • http://istlan.fun/bentley_uk_email_formata1rbr.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/foneniz/ipl_apps_2018.pdfIn PDF document text
    • http://fijijap.rf.gd/kirtley_roofing_sheet_metal.pdfIn PDF document text
    • https://s3.amazonaws.com/lodazojamuva/44797995377.pdfIn PDF document text
    • https://s3.amazonaws.com/sizabo/arsene_lupin_1932.pdfIn PDF document text
    • http://bovuzigaratufob.rf.gd/deguxarojasilamefobemuvaz.pdfIn PDF document text
    • http://putetudufotu.rf.gd/kujewixak.pdfIn PDF document text
    • http://wivowutone.epizy.com/vivo_v5_android_version_7._0_update.pdfIn PDF document text
    • http://webidiwotew.epizy.com/lasagna_sheets_ingredients.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_off0000d26a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD26A 4936 bytes
SHA-256: 3623dfec069b7050dc00123b9a09d314fad1002f033ff9ca9687e93b2a7332b5
font_01_sfnt_off0000e318.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE318 9972 bytes
SHA-256: 4cdd44005740ea1528c18c49b0e394a95c3f764f88fa78ba833a63f8fb86c5c3