Malicious PDF — malware analysis report

Static analysis result for SHA-256 6eb37d2a49267d30…

MALICIOUS

PDF

65.3 KB Created: 2021-03-01 09:30:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: cded58308ba73eb5de47d934380f4484 SHA-1: 5ced6ba6455d786c38e871220d1d1ab7f5636df6 SHA-256: 6eb37d2a49267d30b6267d758bee6d971da2a9d1009064569a3a88406ddc9fb8
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://maypoin.ru/award?keyword=how+to+use+gillette+fusion+proglide+5 PDF link annotation
    • https://podogavefa.weebly.com/uploads/1/3/1/4/131438056/0bd0add1c94d5.pdfIn PDF document text
    • https://karujelibofab.weebly.com/uploads/1/3/1/4/131406149/2c9e011e1728.pdfIn PDF document text
    • https://zoxujaratufopa.weebly.com/uploads/1/3/5/3/135399722/kapuximek.pdfIn PDF document text
    • http://wejowadizabudex.mypressonline.com/napofinav.pdfIn PDF document text
    • https://vudiwajexisipu.weebly.com/uploads/1/3/4/0/134096418/napamakaxe.pdfIn PDF document text
    • http://bidizujimon.getenjoyment.net/mp3_murottal_30_juz_free_download.pdfIn PDF document text
    • https://gamekesilib.weebly.com/uploads/1/3/4/8/134892139/duwinu_fopolegurag.pdfIn PDF document text
    • https://gidapozu.weebly.com/uploads/1/3/1/3/131379371/2e05ad.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482863/normal_5fc78bb424879.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463005/normal_5fef4a4eda136.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/dutimajizowa/gate_2018_ece_question_paper.pdfIn PDF document text
    • https://s3.amazonaws.com/jirebonudur/limawoxafo.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_off0000c24b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC24B 5176 bytes
SHA-256: 89c0a4e94fdf16f9ffaf1b6c34f836c0690f575e268ca01b2626e2a5774904f9
font_01_sfnt_off0000d411.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD411 10592 bytes
SHA-256: 185dab3222ec292d4e27dd7ff6c052fbe4064e46ff41268ff426bd94751b22ee