Malicious PDF — malware analysis report

Static analysis result for SHA-256 c94bcd86e83918ea…

MALICIOUS

PDF

73.7 KB Created: 2021-02-28 04:31:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 9f406d668d24c558968d3aec2a19a29b SHA-1: a239febb088279b2ac156ce66294258960ae67f0 SHA-256: c94bcd86e83918eabf776991574c068895e8ff0852f7006ee5f44f30fe6b88d8
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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
  • 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://vilenefex.ru/123?utm_term=what+does+management+accounting+mean+in+french PDF link annotation
    • https://cdn.sqhk.co/ximegawaso/YgeRgdc/ding_ding_dong_dr_dre_lyrics.pdfIn PDF document text
    • https://bekazavaf.weebly.com/uploads/1/3/5/3/135327011/peruganogenitedidugo.pdfIn PDF document text
    • http://naturfresh.space/6946276897565ib2.pdfIn PDF document text
    • https://rifusefabizavi.weebly.com/uploads/1/3/2/3/132303317/ad2315c2820d6.pdfIn PDF document text
    • http://jekefidaz.mygamesonline.org/figurative_language_dalam_puisi_the_road_not_taken.pdfIn PDF document text
    • https://jowozulabu.weebly.com/uploads/1/3/4/0/134013075/8902944.pdfIn PDF document text
    • http://vizit.store/what_type_of_oil_does_a_lawn_boy_mower_takehzbak.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455194/normal_6039ff54ae54a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414357/normal_60183cff1cc62.pdfIn PDF document text
    • https://cdn.sqhk.co/gunumiku/jcgfdje/rugepugasemalusimazekewi.pdfIn PDF document text
    • http://sodowetan.mywebcommunity.org/20070165581.pdfIn PDF document text
    • https://zisovubuzuteb.weebly.com/uploads/1/3/6/0/136086112/1656333.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369784/normal_60261c5859e90.pdfIn PDF document text
    • http://stankoff.org/livro_introduo_a_analise_combinatoriarnn3w.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454052/normal_601c65082ec45.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zapidijerazavot.epizy.com/math_problems_for_8th_graders_with_answers.pdfIn PDF document text
    • http://widifusi.myartsonline.com/what_is_american_society.pdfIn PDF document text
    • http://noluduji.epizy.com/imprimante_hp_deskjet_2547_comment_scanner.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_off0000e27a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE27A 5416 bytes
SHA-256: c9fa3692e132a5579c326fc094ab6d9b15787c3afa12a9952df74f55523d3702
font_01_sfnt_off0000f4cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4CB 11280 bytes
SHA-256: f14587387a83dcdad06f8b4e023aac9525ee2f6b9f40e5f7aeb9a46abc7943ac