Malicious PDF — malware analysis report

Static analysis result for SHA-256 a732ad4a75e5b0ee…

MALICIOUS

PDF

48.4 KB Created: 2020-11-08 06:44:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 4a3508a156d78015b883a2a3bd749020 SHA-1: 546165fee66a1a18e17e8ebf28b7e8f9c6caa5a3 SHA-256: a732ad4a75e5b0eebb419b59cdeafd4ca454717f8f0b15bbfbc70e9b98b54e59
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://trafftec.ru/aws?keyword=aiag+manual+fmea PDF link annotation
    • https://rosofofupamufi.weebly.com/uploads/1/3/4/3/134364257/pogub_pirovudidu_marofira.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366304/normal_5fa0848491df1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450719/normal_5fa013a02c565.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://vevadiwo.files.wordpress.com/2020/11/peter_atkins_fisicoquimica_vol_2.pdfIn PDF document text
    • https://s3.amazonaws.com/sazixipame/ziponumaxoruwowowolekegaw.pdfIn PDF document text
    • https://zopovamodutu.files.wordpress.com/2020/11/godusawix.pdfIn PDF document text
    • https://gawazufe.files.wordpress.com/2020/11/codigos_de_falla_obd2_hyundai.pdfIn PDF document text
    • https://xoxitefig.files.wordpress.com/2020/11/92078005718.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c72c6dd1-e18c-43fc-8801-11e6fcfb294b/11316071139.pdfIn PDF document text
    • https://jopafez.files.wordpress.com/2020/11/faruwadora.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d5a6852a-f177-4e70-9cb7-7d0cbfaf8b18/fakidozozifin.pdfIn PDF document text
    • https://s3.amazonaws.com/dugibabafod/begojureguwo.pdfIn PDF document text
    • https://natetoweno.files.wordpress.com/2020/11/32813447423.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_off0000824c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x824C 4800 bytes
SHA-256: f6d2d1be8a38df78ad4337f7143ba69afd246ae4541c9a6bad255d349ab20218
font_01_sfnt_off00009297.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9297 10100 bytes
SHA-256: ae9e97b56b6d0823c495a8820de6c8e1ff7d885819fdac2f45daf829f9fe0f1e