Malicious PDF — malware analysis report

Static analysis result for SHA-256 54b5485f1c20b431…

MALICIOUS

PDF

64.2 KB Created: 2021-02-15 06:54:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 40a7bbe131b85697f6693188cc47324a SHA-1: cba92a52258b24966328b4b46ee9c0ba6f5e88e7 SHA-256: 54b5485f1c20b4319129d65d953f07056e01cdf0546826b5b21c968411c72711
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://leonvi.ru/wix?keyword=mass+mayhem+3+walkthrough PDF link annotation
    • https://cdn.sqhk.co/pajugeluj/fha7hhd/marshmallow_furniture_mickey_mouse.pdfIn PDF document text
    • http://meetraisins.club/cheat_engine_apk_rootsuz10r7v.pdfIn PDF document text
    • https://bevozuvegala.weebly.com/uploads/1/3/3/9/133999301/kajow.pdfIn PDF document text
    • http://nasporte1.fun/vegan_keto_diet_planiv4cr.pdfIn PDF document text
    • https://cdn.sqhk.co/vodadavubex/biehjhg/suvew.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413016/normal_5ffc14e7c46a3.pdfIn PDF document text
    • https://cdn.sqhk.co/farafakilof/jjOjh2v/mebalage.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406789/normal_601c8aba4220c.pdfIn PDF document text
    • http://hotita.fun/84477027827916a0.pdfIn PDF document text
    • https://jewaxesototipa.weebly.com/uploads/1/3/5/3/135326518/1859d0d9.pdfIn PDF document text
    • http://eagleaff.com/born_this_way_lyrics5xhrf.pdfIn PDF document text
    • https://cdn.sqhk.co/gepeduvo/Ljgihig/71537872458.pdfIn PDF document text
    • https://kokozorakozuwel.weebly.com/uploads/1/3/0/7/130775651/312f26.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407664/normal_6003ecce368a3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zuloxuso.epizy.com/chevalier_college_uniform.pdfIn PDF document text
    • http://gigogapa.epizy.com/babysitter_walkthrough_1._8.pdfIn PDF document text
    • http://nasakitubaribud.rf.gd/chupke_chupke_movie.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_off0000bf0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF0A 5524 bytes
SHA-256: 17641f49f46f7751605d42ce501df4d2ff984b48ae3638708dc64962de398ac4
font_01_sfnt_off0000d1d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1D1 9984 bytes
SHA-256: f05c395dfbcefca0db0cfb44581edd8ff3a502e4dbad0cca8f9d50c65911e812