Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea09e021c900f67b…

MALICIOUS

PDF

70.7 KB Created: 2020-11-24 19:51:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-12
MD5: ada9bf5a770850b88bbb247eb4d44514 SHA-1: 490a0343930b931ee5110ff46aad4dc077039bd2 SHA-256: ea09e021c900f67b127ccb48dcf6b92d892e3c733e6e4720104efd55429439e6
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • 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://s3.amazonaws.com/zirojopemup/jikikatelufu.pdf In PDF document text
    • https://lupigufenof.weebly.com/uploads/1/3/4/5/134509144/a7575dd27594b4.pdfIn PDF document text
    • https://s3.amazonaws.com/pazovugal/vusisibivati.pdfIn PDF document text
    • https://s3.amazonaws.com/tadovu/el_viaje_del_hroe_campbell.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455396/normal_5fa27c211df77.pdfIn PDF document text
    • https://s3.amazonaws.com/neviwove/android_app_store_button.pdfIn PDF document text
    • https://s3.amazonaws.com/punurum/action_plan_for_poor_sales_performance.pdfIn PDF document text
    • https://s3.amazonaws.com/sedimeraxufi/see_the_able_not_the_label_copyright.pdfIn PDF document text
    • https://s3.amazonaws.com/zarusegibitumet/csr_racing_2_apk_android.pdfIn PDF document text
    • https://s3.amazonaws.com/xonobijikivo/bahubali_2_songs_telugu_dj_naa.pdfIn PDF document text
    • https://trafffi.ru/123?utm_term=kelly+dodd+boyfriend+rick+net+worthIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000c288.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000c288.bin)
    • https://uploads.strikinglycdn.com/files/8acd82bd-8e92-4732-be1f-0c69646f471f/vaxajinumaxipin.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 extracted file (font_00_sfnt_off0000c288.bin)
    • http://dejavu.sourceforge.netIn extracted file (font_02_sfnt_off0000f8fb.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_02_sfnt_off0000f8fb.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c288.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC288 5088 bytes
SHA-256: 19beb8d7bd8e54d2e55acb8a971936b6ebed91527a58f71c67af34987a2e50c6
font_01_sfnt_off0000d3ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3ED 10748 bytes
SHA-256: 87ba10cd57f53de1777b0dfd68af12e80c1dfb4fb07912fa63651e84d59c9467
font_02_sfnt_off0000f8fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8FB 16168 bytes
SHA-256: 794d8cc090a449e0d460036171b2d5b2c749cb0dc3f17972c44626ada68ee3d8