Malicious PDF — malware analysis report

Static analysis result for SHA-256 65e70deda20ed798…

MALICIOUS

PDF

39.2 KB Created: 2020-11-06 16:23:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: 6f35cf2b6199a9b958843bc738b79ff6 SHA-1: 705f87dd96e64ece1eaaf935533e4cba914e7a9f SHA-256: 65e70deda20ed7981f5e0c28d8ae653df2459113889fe5fd107c8a56cca63685
84 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://trafffi.ru/aws?keyword=minecraft+apk+1.16.20.54 PDF link annotation
    • https://nawajutexi.weebly.com/uploads/1/3/4/1/134108687/fcf5f3b35556d.pdfIn PDF document text
    • https://lubozukutiximik.weebly.com/uploads/1/3/4/4/134472848/b5724.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/zirojopemup/35805223290.pdfIn PDF document text
    • https://s3.amazonaws.com/sukedil/59175683850.pdfIn PDF document text
    • https://s3.amazonaws.com/zasepo/slime_laboratory_unblocked.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d85a76ac-a39a-43e6-ab07-11ac757a9efd/75664074988.pdfIn PDF document text
    • https://s3.amazonaws.com/mizeteb/76031276651.pdfIn PDF document text
    • https://s3.amazonaws.com/zazelujeju/agthx_quote_history.pdfIn PDF document text
    • https://s3.amazonaws.com/vutame/kutopaxotaze.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3a00a69b-11c0-4e16-ba28-fda73c9af2fc/69494558517.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c9cdc5ba-7436-4725-b9ca-6b2e97cb1543/social_policy_personal_statement.pdfIn PDF document text
    • https://s3.amazonaws.com/bupijila/ghost_recon_breakpoint_map.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_off000058fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58FD 5592 bytes
SHA-256: c347f027e1386d5f4be655829ba83865e3dc0a38f7e478bd7268a34a00826a19
font_01_sfnt_off00006c36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C36 10536 bytes
SHA-256: b93fe37b90e866002cbf9b51fe63ecbbd3bafe13b908cb9cb05efe82dadf2aeb