Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f72cff31d33cb1e…

MALICIOUS

PDF

66.6 KB Created: 2021-02-06 22:00:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0177536ab4e05a8b3c507e7cdf2b1a66 SHA-1: 59d0557272f22b92cf706608564552f345fb5d14 SHA-256: 1f72cff31d33cb1e801a099d095b2d3ebe445b66f1c7aadfe0fbf248d405de47
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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=alton+grain+terminal PDF link annotation
    • http://ziwefewixus.iblogger.org/how_to_answer_discussion_board_questions.pdfIn PDF document text
    • https://cdn.sqhk.co/sezepemanu/36ifPib/best_online_soccer_store_usa.pdfIn PDF document text
    • http://vosiwikaxipe.22web.org/rock_paper_scissors_movie_parents_guide.pdfIn PDF document text
    • http://bejuzoz.iblogger.org/vijukugerom.pdfIn PDF document text
    • http://puwexakibo.iblogger.org/30399329409.pdfIn PDF document text
    • https://cdn.sqhk.co/bamazaludez/Jjfhhji/74889039917.pdfIn PDF document text
    • https://cdn.sqhk.co/sibamoxa/gKmCOhc/88340143349.pdfIn PDF document text
    • https://cdn.sqhk.co/wojidumezu/ih51Mpx/insta_repost_for_instagram_apk.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/sitozi/48297047888.pdfIn PDF document text
    • https://s3.amazonaws.com/sugosubexez/lalasovojanamifodeg.pdfIn PDF document text
    • https://s3.amazonaws.com/nimuwet/96568139269.pdfIn PDF document text
    • https://s3.amazonaws.com/zusevamasor/60347864615.pdfIn PDF document text
    • http://jefevuxivux.epizy.com/bavabuxubebirufitovo.pdfIn PDF document text
    • http://javewexo.epizy.com/amma_vanthachu_tamil_movie_songs.pdfIn PDF document text
    • http://buvinisupolo.rf.gd/jspdf_autotable_add_header.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_off0000c7e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7E8 4816 bytes
SHA-256: e369d5b2a30c950e46eea12495dcbe3332d97a8222e078fc481837d2013b1f77
font_01_sfnt_off0000d833.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD833 11184 bytes
SHA-256: 0648a8f2c58d4f7a48203d4a5f6a36a1b4a92ef51d5d887a6c1467c7811aa3e5