Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a5951cfaf4eec92…

MALICIOUS

PDF

74.5 KB Created: 2021-02-25 10:57:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: f914a64e11ce7d3d2e96b61ed4fac605 SHA-1: 5a2db516c227c507a1a53911368bb69cd03ae389 SHA-256: 3a5951cfaf4eec929ee869a37e32e2a96d7f5255d51cd2f8c180375115aefb8d
126 Risk Score

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://jottigo.ru/award?keyword=blue+is+the+warmest+color+movie+watch+free PDF link annotation
    • http://begemotiks.fun/chartered_market_technician_books_free8so0o.pdfIn PDF document text
    • https://rizimajapalikum.weebly.com/uploads/1/3/4/6/134633575/1497760.pdfIn PDF document text
    • http://hackins.site/97770980866yn8vl.pdfIn PDF document text
    • https://cdn.sqhk.co/woledibiroju/Fgcifgj/nigoruwokivopinifa.pdfIn PDF document text
    • http://busumewum.22web.org/mayspies_labels_template.pdfIn PDF document text
    • https://cdn.sqhk.co/narulaloro/ghjjhc9/rejabe.pdfIn PDF document text
    • http://fishland.store/lasimewitivarukosok2qde.pdfIn PDF document text
    • http://snatural.space/samsung_gt-p5113_updateapz8q.pdfIn PDF document text
    • https://cdn.sqhk.co/wolebiduju/R5Aifky/siwakefuxakanotukunonosab.pdfIn PDF document text
    • http://cocobeautybar.ca/53058227505m813b.pdfIn PDF document text
    • http://svarka-aurora.online/fafepunasiriluvofoxu3ldvw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://suwetiwojiza.rf.gd/77258053271.pdfIn PDF document text
    • http://xuzatazuji.epizy.com/beats_studio_headphones_wired_manual.pdfIn PDF document text
    • http://parezemutosulaz.rf.gd/listening_answer_sheet_british_council.pdfIn PDF document text
    • http://zazuxidavo.rf.gd/34137132078.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_off0000e882.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE882 5324 bytes
SHA-256: ede0a4bccc11d473bf3c349685c9ed4d3068a11e6b5b94eb08285a7104c2a037
font_01_sfnt_off0000fa8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA8C 10088 bytes
SHA-256: 61bc7ceba0ada0580685d2c3b5148f735de0f6a658b0bcc2e8354601e4a69c22