Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa71d5e882915fec…

MALICIOUS

PDF

62.4 KB Created: 2020-11-05 20:40:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-11
MD5: f0c741a2d6884726429ef1863e1f673a SHA-1: ad8adb49103fda1f2346c82eb8ef173a1c128a46 SHA-256: fa71d5e882915fec4e9ee07c572c4bc6b4b823107885dc452fd7d425f0c78254
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://traffset.ru/aws?keyword=harry+potter+hogwarts+mystery+modded+apk+v1.7 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4413244/normal_5f9f7dd2dcd1e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366625/normal_5f8b1e23276fd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391620/normal_5f93179cbb45f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370286/normal_5f8bd84390a72.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383924/normal_5f90a3dc48f3d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372383/normal_5f8dff60ed73a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376371/normal_5f89a6b4bd4de.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/naramuro/fupewejekomodifafedujo.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/cabinet_minister_of_india_2019_in_english_download.pdfIn PDF document text
    • https://s3.amazonaws.com/lixuduwonifa/40875773684.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d1b598a3-9af0-4456-9f17-18934571e9cc/nematidedexuwomipekisukig.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/05636f21-46d8-4682-a7bc-6f52278f5b7d/reforinibove.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/655f2808-ea95-4f87-995e-b1b9fa0291a7/duwog.pdfIn PDF document text
    • https://s3.amazonaws.com/tiduro/bajazineparakexida.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/587bbfbd-a5c1-4927-8cd0-3c03c1463c07/61311068349.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cdcbc069-5ada-48a3-b37e-edb37044d661/bukorubeliwelufenurakapix.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008a6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A6A 5784 bytes
SHA-256: 25be39fd3ca6104e478435f4ccf41dcbf3844bee93605122439cc93f678545df
font_01_sfnt_off00009e25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E25 11248 bytes
SHA-256: ebe83e9a926afd72f5d46a63135b77c1e3fbe761678e3cc495848f5f38e4bc8c
font_02_sfnt_off0000c4a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4A6 22684 bytes
SHA-256: 153b27bd32d4d36adb3bec9ae0f601dcdfba18c0e88f07af10ebe85612cdb64f