Malicious PDF — malware analysis report

Static analysis result for SHA-256 913147756b663b0e…

MALICIOUS

PDF

41.7 KB Created: 2020-11-08 14:52:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-15
MD5: ca55c5d126b35ee68a18dda997e088ee SHA-1: e5ca7bd597482a6a64b5c6887979c3d8311c21a6 SHA-256: 913147756b663b0e5aca6220f7ea7367e7767b5d20bb940fce9817ee5791d7e6
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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=is+sio2+ionic+or+molecular+compound PDF link annotation
    • https://saxibodusazo.weebly.com/uploads/1/3/0/7/130740440/xiluvelu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://xewavevu.files.wordpress.com/2020/11/7181556522.pdfIn PDF document text
    • https://s3.amazonaws.com/lovetijif/dilajuwetilemetos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d3ed63be-95a6-4465-8382-f7e9481c29bc/motuginakujirati.pdfIn PDF document text
    • https://s3.amazonaws.com/muvarelo/free_stihl_ms250_chainsaw_service_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/jupevuxirapi/hunger_games_trivia_questions.pdfIn PDF document text
    • https://nosoraren.files.wordpress.com/2020/11/sign_document_iphone.pdfIn PDF document text
    • https://zavuzujovati.files.wordpress.com/2020/11/telasubuxusilitijularo.pdfIn PDF document text
    • https://fowowolif.files.wordpress.com/2020/11/zemisasokoxurobi.pdfIn PDF document text
    • https://pafegum.files.wordpress.com/2020/11/xumakosokidazok.pdfIn PDF document text
    • https://s3.amazonaws.com/tadovu/zezanigab.pdfIn PDF document text
    • https://s3.amazonaws.com/juvetaso/gosibutiminirerusavo.pdfIn PDF document text
    • https://lodoxepal.files.wordpress.com/2020/11/vibinofa.pdfIn PDF document text
    • https://tilidefixof.files.wordpress.com/2020/11/winivipe.pdfIn PDF document text
    • https://puraduj.files.wordpress.com/2020/11/simoxu.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_off00006361.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6361 5288 bytes
SHA-256: 802f52641e74de023722b95c9da9c880dcc96a01595488fc5760c5a093fc020f
font_01_sfnt_off00007546.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7546 10736 bytes
SHA-256: ce870d917be44e37157eb2ef237ef0a7d0720823648fd94e41bf23a8e0472e36