PDF static analysis report

Static analysis result for SHA-256 0b50093ae531cd42…

SUSPICIOUS

PDF

47.1 KB Created: 2020-11-07 06:45:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: a69d4b87eb350284a140a172f43c30b5 SHA-1: bc75655fa807e698fa1fd031ecdac607367e6543 SHA-256: 0b50093ae531cd4290bf85487e8c03a34cb7a85ebd1e113620b3571cac6ecf09
36 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URL disguised as a product link for a 'front wheel drive bearing puller kit'. The ML classifier strongly flagged this PDF as malicious. The embedded URL is likely intended to lead the user to a malicious site, possibly for phishing or malware distribution. No scripts were extracted, but the presence of an external URI and the ML classification suggest a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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://traffine.ru/123?keyword=front+wheel+drive+bearing+puller+kit PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4413370/normal_5f9885b019f57.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369318/normal_5f8fb9999183f.pdfIn PDF document text
    • https://bulipabuwalo.weebly.com/uploads/1/3/4/1/134131868/ec19abd832735c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://wejogude.files.wordpress.com/2020/11/niwasegini.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2a06158-aaa0-4de6-94f2-e1b169b6c547/ucc_postgraduate_admission_forms_2020.pdfIn PDF document text
    • https://bajalafel.files.wordpress.com/2020/11/79306309645.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/00dffbae-6429-4542-ad10-2752e79a4bb6/ethics_theory_and_contemporary_issues_9th_edition_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3781c2ab-9c34-4c32-8fa3-be5d2341ebe7/sheep_heart_disection_lab_answers.pdfIn PDF document text
    • https://wafaruk.files.wordpress.com/2020/11/biochemical_engineering_and_biotechnology_2nd_edition.pdfIn PDF document text
    • https://s3.amazonaws.com/lokijuronig/zejesulikumadopasoxiwud.pdfIn PDF document text
    • https://s3.amazonaws.com/vedexajawo/gta_4_manual_activation_pc.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_off000077b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77B9 5352 bytes
SHA-256: 32164dcd3a7f417068cb5d5ecafd23ab294eca66903461d8d7a1b108f1be8642
font_01_sfnt_off000089fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89FC 11940 bytes
SHA-256: bac5e2356e2d39de0e961fed99324de0941dcb0b2b2858d7033e68a138e7f6db