Malicious PDF — malware analysis report

Static analysis result for SHA-256 966c30b76ae82bb0…

MALICIOUS

PDF

72.4 KB Created: 2021-02-14 22:10:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: a139b7a3217db3433f6f40057cd2705e SHA-1: 0d997daf4d0aaf31b494f8d3e3576f46decd9c26 SHA-256: 966c30b76ae82bb05fc3d17e809a406e8b1c40c082a89aa9c52d91e055f81f6c
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/wix?keyword=spectrum+channel+guide+not+showing In PDF document text
    • https://cdn.sqhk.co/suwenadikum/jdy7ihd/wusoxapotafifufawurude.pdfIn PDF document text
    • http://carluxepaint.site/48599057444wmkgi.pdfIn PDF document text
    • http://boomerangoo.site/brochure_template_in_google_docst68l9.pdfIn PDF document text
    • https://cdn.sqhk.co/munuseji/jhphegg/nebeledebe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464702/normal_6005750e8a72a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480397/normal_5fdc720849978.pdfIn PDF document text
    • https://cdn.sqhk.co/nagubeze/javQjjC/paint_mix_colour_chart.pdfIn PDF document text
    • http://ig-soft-team.com/causes_of_ecological_succession5gsnv.pdfIn PDF document text
    • https://cdn.sqhk.co/fudopalizew/cTAngdX/movie_quotes_funny.pdfIn PDF document text
    • https://cdn.sqhk.co/wofunukasu/iafjhda/parkour_race_freerun_game_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425209/normal_5fee98d660e66.pdfIn PDF document text
    • https://cdn.sqhk.co/gobamagedesi/jaxKbgj/dial_911_simulator_forum.pdfIn PDF document text
    • http://teasmall.space/27615421858pdz8i.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/kisagoz/katudi.pdfIn PDF document text
    • http://taxowojo.epizy.com/grace_s_guide_the_engineer.pdfIn PDF document text
    • https://s3.amazonaws.com/zisulamisozoto/fowizaver.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_off0000dddf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDDF 5680 bytes
SHA-256: 2a6af87403f719d9d939a825918db99936093392f723616fc1a9f1841787def3
font_01_sfnt_off0000f11b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF11B 10492 bytes
SHA-256: 7d0bd1cfe1c9fe6aa5381439a567bf8e8cd48b253df7dda0e7dfbc49632af0d5