Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e9783e2147e2991…

MALICIOUS

PDF

44.8 KB Created: 2020-11-08 21:48:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: c27cc003ad7815de4915153a8b4bbdcf SHA-1: 38d8e15aed413c24180da73a86675e2c785058d7 SHA-256: 5e9783e2147e2991268ee0d4d4a89e16c3c955a318aa4e003b9c07c42a2bf838
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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=graphing+sinusoidal+functions+worksheet PDF link annotation
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/8925184.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368265/normal_5f930e748676a.pdfIn PDF document text
    • https://sifumoxijobobo.weebly.com/uploads/1/3/4/4/134493963/2516245.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://s3.amazonaws.com/ronatiduzoxij/kezuruwakiguvoze.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2aeb3e76-3545-42c1-bbb2-44edbc88fdfe/.pdfIn PDF document text
    • https://s3.amazonaws.com/tapexiw/xiguroj.pdfIn PDF document text
    • https://s3.amazonaws.com/wizuluworafid/bitowogoboxajito.pdfIn PDF document text
    • https://s3.amazonaws.com/tomaxade/st_alban_roe_mass_schedule.pdfIn PDF document text
    • https://s3.amazonaws.com/wanasuvedigo/characteristics_of_neoclassical_architecture.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7c380db2-d712-4f0d-94d8-8de90aa97827/lowokovugudubakepuge.pdfIn PDF document text
    • https://s3.amazonaws.com/guxosa/the_sims_mobile_latest_mod_apk_unlimited_money.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9435de82-40e9-4254-a996-1129c3180515/49544236679.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/simovuridedinevaradis.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000044b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44B1 5484 bytes
SHA-256: 7dd7c7640d9d9f6db7696461655a6aaadd5673877bc685bb115b4e2b5461b780
font_01_sfnt_off00005769.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5769 10368 bytes
SHA-256: 7a9dddbb5c7bfdc6d9e0d4e5052109f24bc16078682a4a174a101f763bd4b55f
font_02_sfnt_off00007b48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B48 18288 bytes
SHA-256: 944c669363779a66009db0ae0ed9fc57468623aacd0cc2c67a6df7dcb4415df5
font_03_sfnt_off00009796.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9796 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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