Malicious PDF — malware analysis report

Static analysis result for SHA-256 17d635d6f2dcb443…

MALICIOUS

PDF

82.7 KB Created: 2021-02-26 06:24:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 5a1e20e16ec70a7f05cc668ccf54789f SHA-1: ace94921efce75757d7d3680353885e69154396f SHA-256: 17d635d6f2dcb443a6caa0146bda6b97abbe3d8ac374cf6fe8b78acdc4c0d0ab
126 Risk Score

Malware Insights

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

The PDF contains an embedded URL that mimics a search result, suggesting a phishing or content-lure attack. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs are consistent with malware delivery or phishing campaigns.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://seumenha.ru/award?keyword=who+is+the+highest+paid+onlyfans+person PDF link annotation
    • http://bebetadiruj.mywebcommunity.org/how_long_to_put_jerky_in_dehydrator.pdfIn PDF document text
    • http://kedugobepuged.mywebcommunity.org/45089058405.pdfIn PDF document text
    • https://cdn.sqhk.co/viwiratoposu/giji7i9/32389812049.pdfIn PDF document text
    • https://cdn.sqhk.co/bosesegivu/Xhiiiii/duziriguxo.pdfIn PDF document text
    • http://pofuxubilet.sportsontheweb.net/16373345378.pdfIn PDF document text
    • http://pozijuza.scienceontheweb.net/81210244578.pdfIn PDF document text
    • https://cdn.sqhk.co/nixivezez/gfvjbic/alphazero_vs_stockfish_pgn.pdfIn PDF document text
    • http://jamotovoxut.mywebcommunity.org/skyrim_load_order_xbox_one_2018.pdfIn PDF document text
    • http://lelekelosutov.getenjoyment.net/78605136171.pdfIn PDF document text
    • https://cdn.sqhk.co/giganopof/2fb37BP/star_wars_live_wallpaper_iphone_7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gizugutopaf.epizy.com/70612402679.pdfIn PDF document text
    • https://s3.amazonaws.com/bexolamabad/73218377159.pdfIn PDF document text
    • http://jexiduro.rf.gd/labelling_triangles_opposite_adjacent_hypotenuse_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/kobivimelelo/fbi_2017_uniform_crime_report.pdfIn PDF document text
    • http://pusolegulijased.rf.gd/28620655946.pdfIn PDF document text
    • http://bitines.myartsonline.com/96708011382.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_off0001058c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1058C 5420 bytes
SHA-256: bedc92e8c5ea4afe2429e9d750ec0ceb689cf2c8ddbdfde60b684a17a79540d8
font_01_sfnt_off00011809.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11809 11072 bytes
SHA-256: f5d53529d6e82043b6877aa8cbc7dd22979a19ec1da2bc7b89de9619390c5f1e

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