Malicious PDF — malware analysis report

Static analysis result for SHA-256 2130ae7ab1b34fbf…

MALICIOUS

PDF

82.2 KB Created: 2021-02-18 17:52:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: f763b7eb307b16f69153bee5c92a292e SHA-1: d27afaa49c055c166fb8aaed953e0bc90221be5f SHA-256: 2130ae7ab1b34fbf26edb9bd1798cc0d0506e1a0fc08516abc5967df2b98b095
184 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
  • 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/wb?keyword=what%20are%20the%20principles%20of%20biblical%20hermeneutics In PDF document text
    • http://sexogovo.iblogger.org/69934436518.pdfIn PDF document text
    • https://cdn.sqhk.co/gesafafo/YX5jgjb/2019.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451377/normal_6016073558104.pdfIn PDF document text
    • http://xonejixa.22web.org/descendants_3_coloring_sheets.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423453/normal_60219d75e50f1.pdfIn PDF document text
    • https://vuguwawu.weebly.com/uploads/1/3/0/7/130776175/vowigiletowuxi.pdfIn PDF document text
    • https://nupinegudoxaxu.weebly.com/uploads/1/3/5/3/135350485/kilegixos.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449629/normal_5fd8fa8ee4b5a.pdfIn PDF document text
    • https://cdn.sqhk.co/wusezofetib/AhbgtUd/bike_race_all_bikes_unlocked_apk_free_download.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rexivire.epizy.com/66237889446.pdfIn PDF document text
    • http://rufegojokod.epizy.com/angular_6_reactive_form_disable_control.pdfIn PDF document text
    • http://kusegipe.epizy.com/24801839083.pdfIn PDF document text
    • http://ketixidefa.epizy.com/mechanical_engineering_degree_uta.pdfIn PDF document text
    • http://xewenofos.epizy.com/taxububusapidaxujajimota.pdfIn PDF document text
    • http://wuzuferopo.epizy.com/formel_1_qualifying_wiederholung_sky.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_off00010123.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10123 5408 bytes
SHA-256: 69ea8dde21ddb988a1a3ae0bf5e416b1f16535c657f1b9be2fc800d9db364765
font_01_sfnt_off0001136a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1136A 12328 bytes
SHA-256: 169ea22476094f3e74ab069bd2230544a381d4d8fbf34ddc0319aac05265c3b8