Malicious PDF — malware analysis report

Static analysis result for SHA-256 a19c4814c38e7603…

MALICIOUS

PDF

42.3 KB Created: 2020-11-06 05:30:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: b97f76ece298fe80454ebe51d3bca86b SHA-1: c1003bd39fa55d66e517962067628106c7d2a022 SHA-256: a19c4814c38e760384b54a28e1b731a6226a53c3cd986e92f9b7fb43e0e2ad8a
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=pga+golf+schedule PDF link annotation
    • https://togurekeve.weebly.com/uploads/1/3/4/0/134040335/kiwuzufa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366003/normal_5f8c79ffb4a85.pdfIn PDF document text
    • https://rodamopuxex.weebly.com/uploads/1/3/4/3/134354351/faledegeziji.pdfIn PDF document text
    • https://dabituge.weebly.com/uploads/1/3/4/3/134344098/zekevajaxudolido.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384149/normal_5f906879136ca.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371786/normal_5f8b97c17ce39.pdfIn PDF document text
    • https://lasaveba.weebly.com/uploads/1/3/4/4/134488520/rinotir.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5a28f18-9e75-4b91-b9d7-f330bcb36328/procesador_de_texto.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0640f966-5af7-4cd9-9082-7237a61566e3/superior_point_method_marketing.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/79748a38-1029-498f-827d-730ae8b5bb3b/17553734082.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0210dfad-b71b-432f-a00a-fd94965bb886/jim_crow_laws_vs_black_codes_worksheet_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb97b621-17ad-47c4-805c-313e7b717bf4/gigetubojebi.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004b92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B92 5188 bytes
SHA-256: 459da18a752a03b399a1607fdf3d2d24adfc8e128fb1413d365ba2079c84ce93
font_01_sfnt_off00005d3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D3E 10936 bytes
SHA-256: b696c9d00d174a1eb6be78756963f0ede95c712e012c782e7e0486ed9fc45a49
font_02_sfnt_off000082bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82BB 7688 bytes
SHA-256: 17ea6cd752ae0390072704f8590de8beefcac3c20780eb1ea2358a06ab8fa973

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