Malicious PDF — malware analysis report

Static analysis result for SHA-256 95f13df0b11d196b…

MALICIOUS

PDF

44.5 KB Created: 2020-11-05 19:29:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 5bcee1f0442d598f3036d947bcd2ab12 SHA-1: 3cf299bf1025d759953095e48af5ee996bfe82b2 SHA-256: 95f13df0b11d196b72819d5c5e0affa45a5c6eb99740372bc297eff8d0775fb9
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=vigilant+guide+skyrim PDF link annotation
    • https://boxolajabamofi.weebly.com/uploads/1/3/4/3/134356625/c1c0a568da.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/woberiz/vudozijotawivu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/584b0069-c406-44da-a7ef-2de18e340643/historia_de_la_estadstica_lnea_del_tiempo.pdfIn PDF document text
    • https://s3.amazonaws.com/gowebabuxogiro/zuwisemulixasasokakeposix.pdfIn PDF document text
    • https://s3.amazonaws.com/gifojuxaxeva/kitufowetinesufobupu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/182f9181-b375-4ed1-93c5-e83cf7442a4d/xinoseriwidageved.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0001/0664/files/lg_washer_error_code_oe_top_loader.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/certified_ciso_body_of_knowledge.pdfIn PDF document text
    • https://s3.amazonaws.com/nokiva/unblocked_games_333_dead_zed_2.pdfIn PDF document text
    • http://tvtropes.org/pmwiki/pmwiki.php/VideoGame/VigilantGoIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63DA 5048 bytes
SHA-256: b37620095afcd78c2800d770a202f88e8fc0a26ab0d711cb2d8d2f6891e9f069
font_01_sfnt_off000074f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74F1 10044 bytes
SHA-256: ef0b13a3d4f5cb56c5882642a7c0f38bdf6e67ddd77d9b924c95a9508fe321f9
font_02_sfnt_off0000975f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x975F 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378