Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b04ec202c8c45f1…

MALICIOUS

PDF

40.7 KB Created: 2020-10-25 14:50:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: 20b1c694eaa715be1312e5b6c613acd6 SHA-1: 931ee5196f9382e771082c2ecc8006816160794f SHA-256: 3b04ec202c8c45f197965954774938d3b521406a8b5a059c2755bd5c60202621
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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://cctraff.ru/aws?keyword=jesus+name+above+all+names+lyrics+pdf In PDF document text
    • https://pebiname.weebly.com/uploads/1/3/1/4/131453048/6092262.pdfIn PDF document text
    • https://juragubiv.weebly.com/uploads/1/3/0/8/130874328/raxiwazonopuwegek.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393028/normal_5f93806ec0c81.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367941/normal_5f8944a86c2a7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/a9df3f07-1b6e-482f-b521-52f8ddfd1bce/xafeximidodur.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c9a14f1d-0c28-485e-8386-3544e237e787/fusiwoxebiro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6393be24-3053-4568-a2db-bd653439e4ed/98239299152.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/lipodaronetej.pdfIn PDF document text
    • https://s3.amazonaws.com/jezaxojipevu/xupisizidelije.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/7888/6599/files/samsung_j5_notification_bar_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/8028/9956/files/swords_and_souls_all_secret_trophies.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/48724071-dffb-4aca-a5e9-ab8e7908a2d8/menschen_a1._1_arbeitsbuch_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e76096c-c4cf-4eec-9713-3c85204c42e4/79462168486.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_off00005dc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DC7 5592 bytes
SHA-256: 5bd25f5b25727c61a4cd84f28838b591933f4146e0b2c30ea31005ffc2642ebd
font_01_sfnt_off000070bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70BC 11132 bytes
SHA-256: be418912825bcdb9d4ed482a0b910cf1894be63e9a27218aa5406600244c631d