Malicious PDF — malware analysis report

Static analysis result for SHA-256 f223e0c4af381427…

MALICIOUS

PDF

72.2 KB Created: 2021-02-24 09:40:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 63b6568219b98fdf557ae5b80a14603f SHA-1: 95b23824c2a94ad9ee87918a977f225b723695e9 SHA-256: f223e0c4af3814273f5311f12c6bd146746a5f09fde3888a29a48d39543e9d00
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/wix?keyword=auto+like+apk+download+for+android In PDF document text
    • https://jateredadiwez.weebly.com/uploads/1/3/1/6/131606262/wudulowadakonebo.pdfIn PDF document text
    • http://safetymirrors.xyz/48528949330b30j0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486778/normal_5fcb382432ac9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413368/normal_5ff57d87d9ebb.pdfIn PDF document text
    • https://nosodelutota.weebly.com/uploads/1/3/1/8/131857544/769c526fc3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449776/normal_5fda8dd4153ac.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404740/normal_5fe2059801163.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490376/normal_6016a9fb31f47.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448985/normal_5fdbd1f57eefd.pdfIn PDF document text
    • http://50offit.pro/368361219171d4jy.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490547/normal_6026c245e8d27.pdfIn PDF document text
    • http://vabakavolageni.22web.org/54174323300.pdfIn PDF document text
    • http://zirekafeti.iblogger.org/97310455788.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nareboveridur.epizy.com/calibre_free_for_android.pdfIn PDF document text
    • http://nupadamemal.epizy.com/32216159565.pdfIn PDF document text
    • http://gusubozavagu.epizy.com/crontab_file_format.pdfIn PDF document text
    • http://mupufuten.epizy.com/brave_browser_android_full_screen.pdfIn PDF document text
    • http://zapidijerazavot.epizy.com/math_problems_for_8th_graders_with_answers.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dfe6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFE6 5004 bytes
SHA-256: 0ad7f61ce936e12c530781905ffabfe464e4152e936021f7527f8f3071d3f3b6
font_01_sfnt_off0000f10e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF10E 10140 bytes
SHA-256: 1efeb7697ff1873bf5664bd2f25b2857f07ef9db823c51eb6a81735caae7ad98

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