Malicious PDF — malware analysis report

Static analysis result for SHA-256 135c5e3ce63bc614…

MALICIOUS

PDF

41.4 KB Created: 2020-11-02 11:44:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: 12274e953950b942c02c9ba1b0e2394a SHA-1: facb8a33974233486a44abb2f890869d5eea6713 SHA-256: 135c5e3ce63bc614cf5d93011143c35b003e5a6cc18c4380de40996ab8292aa9
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://ttraff.link/123?keyword=strike+force+heroes+3+unblocked+hacked+games In PDF document text
    • https://cdn-cms.f-static.net/uploads/4381291/normal_5f96b90c1f0a3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365547/normal_5f9309f9eb8c0.pdfIn PDF document text
    • https://numilobes.weebly.com/uploads/1/3/4/2/134235742/rivodugido.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/a9a25f85-1c72-420c-813d-cb0c178ed527/96049110984.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0aec7c9b-ac67-4b9f-b886-fad78cb75829/85567575462.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4fe0cd2b-b85e-4b94-b098-09312dd372bb/33930246718.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ce0745c-0792-4b00-afe8-2fe4784dcacb/fupofovujufuxuto.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a0342cc-3ded-47e7-b0e5-4694e483a61c/36376300361.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/2098/2693/files/ball_brick_breaker_games_mod_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/99124ffb-d55c-4707-a9c2-6603b490dbe7/pejomenepelosaledosijo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/8670/3512/files/origami_box_instructions_for_beginners.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_off00005cd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CD6 5904 bytes
SHA-256: aec252f63f3bf5fcd2fa031c8c39e97b5ad8ef83d14bbda133b23f75c98036ba
font_01_sfnt_off000070c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70C7 11260 bytes
SHA-256: 81f4ae6705a0a5ae3d2e8805230266fe3d05e815db1c633e284157f2fb16d4bc

Open this report in the interactive analyzer, or submit your own file for analysis.