Malicious PDF — malware analysis report

Static analysis result for SHA-256 f12bd2cbd9ba350b…

MALICIOUS

PDF

67.2 KB Created: 2021-02-15 09:42:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: fd5a820c8d7876f21de520c4ef34e77f SHA-1: 0889d06bed9886a5b95e37217fb71e4a08d9ac0f SHA-256: f12bd2cbd9ba350b0ef586e5c0bb18b5cb95c8ce05f330d57b52ccfd5e825b35
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://bologen.ru/aws?utm_term=petta+marana+mass+audio+song+free PDF link annotation
    • https://cdn.sqhk.co/vebudirepo/jiertjf/crazy_shopping_game_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/tuseliwi/XjcnMii/excursiones_cruceros_islas_griegas.pdfIn PDF document text
    • http://jolujunutido.iblogger.org/ernst_and_young_2018_transparency_report.pdfIn PDF document text
    • https://cdn.sqhk.co/zubavagi/1idDIdd/black_panther_comic_book.pdfIn PDF document text
    • http://profapp.pro/chemistry_class_12_notes4yjic.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/nijudow/gijozarefiberiwisepavus.pdfIn PDF document text
    • https://s3.amazonaws.com/rorives/jikefeg.pdfIn PDF document text
    • https://s3.amazonaws.com/gimufesajo/lirunivego.pdfIn PDF document text
    • https://s3.amazonaws.com/jajoxulabojaso/14183707416.pdfIn PDF document text
    • https://s3.amazonaws.com/vojapu/suwabofa.pdfIn PDF document text
    • https://s3.amazonaws.com/vofadoloves/retal.pdfIn PDF document text
    • http://faxunarin.epizy.com/46846340909.pdfIn PDF document text
    • https://s3.amazonaws.com/penefelomiju/73153805464.pdfIn PDF document text
    • http://reniletaz.epizy.com/emdr_cognitions_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/bomifabipi/jakenu.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_off0000c9ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9AC 5196 bytes
SHA-256: 34a1f39d3bc112b883d6db3b5460cb9aad3d477d7054061925caad7820940981
font_01_sfnt_off0000db40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB40 10812 bytes
SHA-256: 932f37e29833a2f8a762f3aca1c6534c0ce8b2f7e7d81973e6f9b05aa709f7c8