Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8daf2b62bbfc4fc…

MALICIOUS

PDF

67.3 KB Created: 2021-02-20 21:11:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 662974bde160983cb7d535b134be31da SHA-1: 084b3efebe8339950f2fd94fb3be5a8a5a00c60f SHA-256: a8daf2b62bbfc4fc2676ef0b9686da5f8ba8354f2a9e46e236ed71010052f7f2
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/123?utm_term=dymo+labelwriter+450+turbo+shipping+labels PDF link annotation
    • https://cdn.sqhk.co/pufuxogife/hagevFk/56806848914.pdfIn PDF document text
    • https://cdn.sqhk.co/wadupaxi/hsVgDjj/bounce_tv_black_lives_matter.pdfIn PDF document text
    • https://cdn.sqhk.co/lerapuraroke/a2jahgt/69706768403.pdfIn PDF document text
    • http://reestr.site/detail_drawing_architecture18tec.pdfIn PDF document text
    • http://lesanuzununefa.22web.org/best_budget_android_phone_to_buy.pdfIn PDF document text
    • http://websporizlehd.com/zixojederezmxdbi.pdfIn PDF document text
    • https://cdn.sqhk.co/wetaxawirewu/wFjeqz2/13282234366.pdfIn PDF document text
    • http://rezotu.xyz/black_and_decker_jigsaw_blades_for_woodiwknh.pdfIn PDF document text
    • https://cdn.sqhk.co/nebafori/hfZhfMh/34740638913.pdfIn PDF document text
    • https://cdn.sqhk.co/viforoge/PghgjP5/fujisiredanemovixediveku.pdfIn PDF document text
    • http://nopisodozig.66ghz.com/l_film_song.pdfIn PDF document text
    • https://cdn.sqhk.co/xumesapaxoku/hahgK1q/movie_trivia_schmoedown_wiki.pdfIn PDF document text
    • http://mkuu.club/wujifivamupebatomitekbaow8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://depebovibu.epizy.com/aakasam_malayalam_song.pdfIn PDF document text
    • http://vugoban.epizy.com/xupiwatefek.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_off0000c834.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC834 5920 bytes
SHA-256: b318c12720ee9889e713be7591c8602e6523408ca2b5897490716939201ce7a5
font_01_sfnt_off0000dc52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC52 10548 bytes
SHA-256: 9885f060d8c05787c784bee8a39ef00e8ba20cb6c4f13f17b2587d25d9fef752