Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc979cd0ecd10ce9…

MALICIOUS

PDF

34.6 KB Created: 2020-11-07 09:45:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-15
MD5: 521fd76e3e22fd27d00b0058f9180e89 SHA-1: 2c7707126675cc208d236aa62380ef806f35346c SHA-256: dc979cd0ecd10ce9f9b67018fe334363c20b6b13088ccf24fbf04680ff5440a4
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/123?keyword=batana+oil+walmart PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4368475/normal_5f904ca1b7373.pdfIn PDF document text
    • https://xorusisu.weebly.com/uploads/1/3/4/3/134314808/kimogipokit.pdfIn PDF document text
    • https://rikidunojig.weebly.com/uploads/1/3/4/4/134488605/2716430.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403805/normal_5f9daa557d17a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370054/normal_5f8e415f51e31.pdfIn PDF document text
    • https://votewisuzub.weebly.com/uploads/1/3/4/6/134605747/mawowofos_danuju_norukuxedez.pdfIn PDF document text
    • https://jipidonano.weebly.com/uploads/1/3/4/3/134340070/lamiwexiv.pdfIn PDF document text
    • https://wirukibit.weebly.com/uploads/1/3/0/9/130969322/jumivarigumopabexu.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/roblox_gui_script_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/libeganot/capricorn_man_virgo_woman_sexually.pdfIn PDF document text
    • https://s3.amazonaws.com/mipizaju/what_are_4_principles_of_implied_consent.pdfIn PDF document text
    • https://s3.amazonaws.com/bagisi/harbor_freight_franchises.pdfIn PDF document text
    • https://rotadenig.files.wordpress.com/2020/11/82236523173.pdfIn PDF document text
    • https://s3.amazonaws.com/vezumobigodub/jpg_to_online_converter_download.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_off00004bb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BB3 4792 bytes
SHA-256: e5f11ccd60f4d151cb6ebb15cef8a49282f675822615f3430b00f9af7f8df825
font_01_sfnt_off00005bf8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BF8 9896 bytes
SHA-256: a462c1a208cc883f49be0958f2a9f6379c2eecadaa1d439abf98d35bd40b722d