Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbe6e4e91b179063…

MALICIOUS

PDF

66.6 KB Created: 2021-02-15 12:56:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: e30518a4d480b698275a150a0f86f10f SHA-1: 80b63e696ec3c28f756cf4f74de9bcff3d01b217 SHA-256: bbe6e4e91b1790635ae20ef660c1ecad48088e35eb4b3313f16b972a38b84d5e
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://druttle.ru/wix?keyword=dragonwings+study+guide+answer+key PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4529780/normal_6012b25a94ba2.pdfIn PDF document text
    • https://vuwapelenepaje.weebly.com/uploads/1/3/4/7/134705438/tijaradifud.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388825/normal_600de7e450c94.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376601/normal_5ffad7a14b65d.pdfIn PDF document text
    • http://kozlo.space/48323247458ol8wq.pdfIn PDF document text
    • https://xikuvisaduwobax.weebly.com/uploads/1/3/5/9/135962120/luzorefebutegux.pdfIn PDF document text
    • https://wugedelujexot.weebly.com/uploads/1/3/1/4/131456191/4a7b16.pdfIn PDF document text
    • http://libralab.digital/84249356347873vp.pdfIn PDF document text
    • https://munejubulogulep.weebly.com/uploads/1/3/4/2/134266186/lijeguxezuwotadifora.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366043/normal_600f8737d879e.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/gedesisumi/jekebajexov.pdfIn PDF document text
    • https://s3.amazonaws.com/petikamov/groucho_marx_arthur_sheekman_reading_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawe/amazon_kindle_ebook_convert_to.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_off0000c92f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC92F 5220 bytes
SHA-256: f0e2bf1d8c110431c0c3ece1a759d613f43d70cd9d92180f083886f704cec2f9
font_01_sfnt_off0000db1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB1B 10148 bytes
SHA-256: 08f3a4deebcf00a5df5f94a92044eb30a03d438cd29248aeb1a8deefe4033130