Malicious PDF — malware analysis report

Static analysis result for SHA-256 aed4e6890260ad05…

MALICIOUS

PDF

36.8 KB Created: 2020-11-08 07:12:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 33b19399af7a1fdc2c66399c9babd9eb SHA-1: 017d892fe293abfff1a8f443c178e01fc4ff36ff SHA-256: aed4e6890260ad05e7e1ab8aec5f788e7787501d83a3711a4556669c2c3f2025
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://trafficel.ru/aws?keyword=2008+chrysler+sebring+repair+manual PDF link annotation
    • https://palozemoxapido.weebly.com/uploads/1/3/4/3/134366311/3676375.pdfIn PDF document text
    • https://wozofawado.weebly.com/uploads/1/3/0/8/130874325/44444.pdfIn PDF document text
    • https://pedugosiv.weebly.com/uploads/1/3/4/6/134622687/gipajutanefit.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481156/normal_5fa70805a0df5.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/rasegawi/grey_s_anatomy_season_10_episode_9_recap.pdfIn PDF document text
    • https://ziziwugo.files.wordpress.com/2020/11/53020522427.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/6681470701.pdfIn PDF document text
    • https://s3.amazonaws.com/tonemakopinibem/undertale_secrets_guide.pdfIn PDF document text
    • https://nogitolux.files.wordpress.com/2020/11/99378687112.pdfIn PDF document text
    • https://sibamefekin.files.wordpress.com/2020/11/maxuzapipetasirorarefi.pdfIn PDF document text
    • https://s3.amazonaws.com/warapagefasovi/58733850207.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_off000050df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50DF 5960 bytes
SHA-256: 70d85fa9326f8c399ae7f0e7302fb766d4d508960af3b8cccf00fadba7ac58fd
font_01_sfnt_off00006503.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6503 9836 bytes
SHA-256: 3ea9fef57cc8bd16ba034f415d958bd4a1a60032973ce11242c9e175153175bd

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