Malicious PDF — malware analysis report

Static analysis result for SHA-256 eab306109d44472a…

MALICIOUS

PDF

72.4 KB Created: 2021-02-25 15:49:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 99764bed8e3a35f717f80708e83c4f0a SHA-1: 37269fd8eae909918c08e58f592bfa7e02ee89e6 SHA-256: eab306109d44472acc77695feea2ef29457c41a0a1f68860799d82c6c33cc5f0
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 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://crophysi.ru/award?keyword=how+do+i+change+the+ink+in+my+canon+mg3600+printer In PDF document text
    • https://cdn.sqhk.co/rovifatira/hdgcMyA/reborn_baby_girl_cheap.pdfIn PDF document text
    • http://sowopezamiw.medianewsonline.com/la_compuerta_numero_12_baldomero_lillo_resumen.pdfIn PDF document text
    • https://cdn.sqhk.co/jigugabopu/d4cFQQk/26107691173.pdfIn PDF document text
    • https://gawosiluzetur.weebly.com/uploads/1/3/4/6/134631715/ladegukejivukugukami.pdfIn PDF document text
    • http://vuvulusigi.scienceontheweb.net/christopher_paolini_eragon_series_in_order.pdfIn PDF document text
    • https://zukodefikarux.weebly.com/uploads/1/3/4/4/134498552/c528b0f3.pdfIn PDF document text
    • http://mevukavotidu.getenjoyment.net/mossberg_930_hunting_all_purpose_field_review.pdfIn PDF document text
    • https://lesejudojava.weebly.com/uploads/1/3/1/1/131164013/0e584b6b6.pdfIn PDF document text
    • http://pimuxiv.22web.org/dangerous_fellows_zion_answers.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lenadupubop.rf.gd/tokoxizawofexababojumuwa.pdfIn PDF document text
    • http://zojujuz.rf.gd/72438498092.pdfIn PDF document text
    • http://wobirazegezuw.epizy.com/302865300.pdfIn PDF document text
    • http://duvodix.myartsonline.com/alla_prima_used_book_for_sale.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_off0000dd64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD64 5956 bytes
SHA-256: eb85b0361e0915cb1de7d29e74b9d2c68d2b433760b1db21f08d4d4895db624a
font_01_sfnt_off0000f199.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF199 10264 bytes
SHA-256: 4e50cb3cac15286991bc039751d5e48a923d7af6c122cbae1967e4ecad42b823