Malicious PDF — malware analysis report

Static analysis result for SHA-256 6363a78de5d01cda…

MALICIOUS

PDF

72.6 KB Created: 2021-03-09 12:40:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 4b058320dafe41c696536df9a155b612 SHA-1: d58db3f73e88a741bf9dc079722c02787a84a535 SHA-256: 6363a78de5d01cdadd67703caf7cfd04a11306e2d245824ecb7c49b2ca252c94
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://mezovuduw.ru/wix?keyword=apk+aladdin+movie PDF link annotation
    • https://cdn.sqhk.co/kopilixa/gvjfjju/goat_simulator_goat_city_bay_trophy_locations_ipad.pdfIn PDF document text
    • http://sajiwurejedetu.sportsontheweb.net/cowon_plenue_d2_price.pdfIn PDF document text
    • https://cdn.sqhk.co/zipedufipiz/dhjjShh/dibirezuxewuninitalusil.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421627/normal_60385369a1fbe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468296/normal_603dca9167c63.pdfIn PDF document text
    • http://fesurowejo.mywebcommunity.org/xijinuziworumu.pdfIn PDF document text
    • https://cdn.sqhk.co/kekelivig/g0igib7/jepibokasosafenarafa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453908/normal_604043e38dd8b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418565/normal_5fe9d23f54c84.pdfIn PDF document text
    • https://cdn.sqhk.co/ganuniwiku/jiey6gi/73870381930.pdfIn PDF document text
    • https://cdn.sqhk.co/guranotup/Dexjiij/77481952364.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://eff7b67d-fef5-45b7-bcd6-ffb1b71d3a14.filesusr.com/ugd/b4c9df_036a8beb6a5544afb12de6a9b623acf3.pdf?index=trueIn PDF document text
    • https://d525ee04-2a40-494f-8ba9-fee52f7b18ee.filesusr.com/ugd/8b8e24_79c84738131649fc8033396ea2007a71.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/latufenaw/abbyy_finereader_12_full_crack_sinhvienit.pdfIn PDF document text
    • https://7aff118d-26f6-4d76-9bc9-1838009e7274.filesusr.com/ugd/f80014_4e75536387084be490dbceec8d7cdee7.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/fisulefajow/commendation_medal_template_air_force.pdfIn PDF document text
    • https://s3.amazonaws.com/wopari/bticino_interphone.pdfIn PDF document text
    • https://s3.amazonaws.com/pusixa/exponents_and_radicals_review_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/jazuravazaguz/68107689131.pdfIn PDF document text
    • https://562c2315-396f-49d1-9e45-1236e049cb13.filesusr.com/ugd/ec0012_702f6d3d96fd43f894c8e7780abf8513.pdf?index=trueIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d48c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD48C 4652 bytes
SHA-256: 94e4cdde59dae4e467087b790ede72dc6e6ab59b6ee972ac839119648ec1e47b
font_01_sfnt_off0000e43d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE43D 10212 bytes
SHA-256: 8f9d32c5bb84cb8ce1e563a49386bc773763d88b582d71b5a7db7c3e7be9f2ba
font_02_sfnt_off00010727.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10727 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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