Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c382805e57b359f…

MALICIOUS

PDF

67.8 KB Created: 2021-02-09 17:52:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 0db001799adcd1bae414bf15f8ef6add SHA-1: 3fcbc67f10f8503d710d146078a277c6e03c0106 SHA-256: 8c382805e57b359f4093f2228d27813f1eaa513da8f0eead78c4fcafde8049e4
126 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
  • 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://leonvi.ru/aws?utm_term=cheat+or+swindle+informally+crossword+clue PDF link annotation
    • https://ledapenilodaro.weebly.com/uploads/1/3/1/0/131070651/fonuda.pdfIn PDF document text
    • https://mivewuwadomabat.weebly.com/uploads/1/3/1/6/131606259/69d6c1e9.pdfIn PDF document text
    • http://fragcups.com/dejuzazusukonenufusuxil5rfcy.pdfIn PDF document text
    • https://cdn.sqhk.co/wodabakope/hdhaErx/wallpaper_kobe_bryant_3d.pdfIn PDF document text
    • http://zdorovienashevse.xyz/luigis_mansion_iso_usazuxnd.pdfIn PDF document text
    • http://pakamid.22web.org/low_cholesterol_guidelines.pdfIn PDF document text
    • https://wokopapun.weebly.com/uploads/1/3/5/3/135388848/ea4cffed39293a.pdfIn PDF document text
    • https://mofixeridivekux.weebly.com/uploads/1/3/1/6/131606419/9182998.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/widofafane/hog_island_boa_care_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/zamemigojat/mainsheet_capital_pty_ltd.pdfIn PDF document text
    • http://ragigixo.epizy.com/43341940749.pdfIn PDF document text
    • http://kexofiz.epizy.com/wekaxazafodozeloxixi.pdfIn PDF document text
    • http://lenegimuni.epizy.com/51373606940.pdfIn PDF document text
    • http://fufezexu.epizy.com/mewixufumo.pdfIn PDF document text
    • https://s3.amazonaws.com/rekorewexidiwo/car_parking_mania_game.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_off0000ca61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA61 5360 bytes
SHA-256: 6625f1492338be91c9c72b69ae67d461f5bead069ad4b6f792265593ecf47f3c
font_01_sfnt_off0000dc86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC86 10896 bytes
SHA-256: c2c0b4c534d2710b4a1c8460ec6654a49d5eeead296fb82cf9a3fe780981835c