Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9bee102abcb4ce8…

MALICIOUS

PDF

64.7 KB Created: 2021-01-31 16:07:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 7284c5b0db8bcf209797de1f90437731 SHA-1: 3841ba3c0294c51e5737cd0d6f42bcf0efeebdbb SHA-256: d9bee102abcb4ce82d16e097277aba640a3aaedfc112ee9bac11d6f6b6fb979b
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=nfpa+1410+drill+2 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4498366/normal_5fe50eada0deb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413696/normal_60095f03be4ff.pdfIn PDF document text
    • http://gijofabenetawix.66ghz.com/boy_girl_games.pdfIn PDF document text
    • http://manaluw.iblogger.org/rejowiwemar.pdfIn PDF document text
    • http://lnstagramsecurity.net/punodekwufut.pdfIn PDF document text
    • http://bbcua.site/pokecord_bot_discordo5fzz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471704/normal_60149e1780765.pdfIn PDF document text
    • http://znasila.ru/351578042513y0e1.pdfIn PDF document text
    • http://1xbet-registrat.site/zukes7jmed.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nitovotiroxe.epizy.com/meaning_of_formalism_in_literature.pdfIn PDF document text
    • http://powajokex.rf.gd/hole_celebrity_skin_album.pdfIn PDF document text
    • http://zufonokimilije.epizy.com/18438760426.pdfIn PDF document text
    • http://wavedada.epizy.com/60013781750.pdfIn PDF document text
    • http://bozalusi.epizy.com/gevuloxilijuk.pdfIn PDF document text
    • http://fukefuxatolu.epizy.com/wiwubozimewenaw.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_off0000c15f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC15F 5240 bytes
SHA-256: 18222a77a78f44fab5e6ba0ee7b97483e53c4b220518426f7a00a34625d83fec
font_01_sfnt_off0000d34f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD34F 10488 bytes
SHA-256: d235ac8d5bebdad1b9c19955d0cba63302077eab440f5d1ed8b8a0f3325d709d