Malicious PDF — malware analysis report

Static analysis result for SHA-256 c715281c5d551ee1…

MALICIOUS

PDF

49.0 KB Created: 2020-10-01 16:42:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: aa0e53fe088b515d86953467a7cb1f0b SHA-1: b01610f605b685f6b421061e67b46921826109e7 SHA-256: c715281c5d551ee1ab4975c8d2649999a5a069fdea0729429ee99407204ad555
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://gettraff.ru/strik?keyword=arbitrage+pricing+theory+ross+1976+pdf In PDF document text
    • http://files.fromageriekapuskoise.com/uploads/1/3/0/8/130815014/3009625.pdfIn PDF document text
    • http://jipawalar.ulloos.com/uploads/1/3/1/4/131453449/9946377.pdfIn PDF document text
    • http://files.studiomtraining.com/uploads/1/3/1/4/131453402/mukumofedido_gemedopimubo.pdfIn PDF document text
    • http://files.charlieleephotography.com/uploads/1/3/2/7/132740798/ruleb.pdfIn PDF document text
    • https://site-1036644.mozfiles.com/files/1036644/63323656454.pdfIn PDF document text
    • https://site-1038973.mozfiles.com/files/1038973/47475169563.pdfIn PDF document text
    • https://site-1039970.mozfiles.com/files/1039970/sonixos.pdfIn PDF document text
    • https://site-1036969.mozfiles.com/files/1036969/dubimemerop.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1347380-1cfb-43b8-b44d-622b9bea81cd/pamididibezawawiti.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a27dfff9-71a2-4194-bc38-55f597c6a37b/gajakavalivofuj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4736ab7f-ec58-468a-90d6-b19284e0209d/zofagegejewafenefef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f54ef5a-650c-4f8d-99ac-0b88b6358bb1/56213840968.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/2101/9554/files/spotted_bay_bass_lures.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/9331/4722/files/godzilla_awakening.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4468/3419/files/fram_ultra_synthetic_oil_filter_review.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3768/5920/files/63379809968.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2174/5822/files/north_rockland_high_school_staff.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006842.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6842 6056 bytes
SHA-256: 4601d114d640d92d5268822edcd53c61b47af8de61306e25d575dc129b9aa756
font_01_sfnt_off00007ce2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CE2 10404 bytes
SHA-256: f4a7c7332e297d3c575b5060cc0890b28426c947c5517de3623bb028a98fc26b
font_02_sfnt_off0000a0c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA0C0 16316 bytes
SHA-256: 0d59f19ac5a3584594d437965d31b91c6dbf023393257f83c6c9cfca14f5ae86

Open this report in the interactive analyzer, or submit your own file for analysis.