Malicious PDF — malware analysis report

Static analysis result for SHA-256 951c3f028475a8f0…

MALICIOUS

PDF

39.9 KB Created: 2020-11-09 14:49:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-15
MD5: fa99ddb2bb645a7306859c9be2ea996d SHA-1: a702e54ae7a0b3453126ea04e6c5383c560aa3ea SHA-256: 951c3f028475a8f0bea55422c585c96708ca8086950184487b58046fc538490a
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=choices+stories+you+play+mod+apk PDF link annotation
    • https://nitaluba.weebly.com/uploads/1/3/4/3/134348735/tixiledekawowaj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379473/normal_5f8f67931f898.pdfIn PDF document text
    • https://fodezamu.weebly.com/uploads/1/3/1/4/131407453/6497588.pdfIn PDF document text
    • https://teguzefememefa.weebly.com/uploads/1/3/4/6/134609716/895110.pdfIn PDF document text
    • https://zirufifun.weebly.com/uploads/1/3/0/8/130874679/vadetal.pdfIn PDF document text
    • https://wurikosaradusif.weebly.com/uploads/1/3/1/3/131384544/c36a399f768.pdfIn PDF document text
    • https://wabemogulumog.weebly.com/uploads/1/3/4/3/134384503/jesazur.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/rexogeguxosix/19975088770.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/ncert_books_biology_class_11_in_hindi.pdfIn PDF document text
    • https://s3.amazonaws.com/pesetufavo/black_friday_tire_sale_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/woberiz/wojakexivatiwedumuvu.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_off00005991.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5991 5384 bytes
SHA-256: 55757bd8d6a139298847e1474e9d384a637eaf5e88e0f3d8a4010eb9610a99b2
font_01_sfnt_off00006bba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BBA 11184 bytes
SHA-256: bf878b2c510e0230b54f3656bb86fa2511ea1ac71234829dab92f389be0987dd

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