Malicious PDF — malware analysis report

Static analysis result for SHA-256 b30d2a9418da7119…

MALICIOUS

PDF

66.3 KB Created: 2021-02-27 14:01:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 2edf1710b31933d684c6fef513464955 SHA-1: 7ade5aded4eef32ef1b4767aa8cc574c7b1ce292 SHA-256: b30d2a9418da7119ad92bb26e6d2052e907699a77564f7cce86c510f0bffe9c3
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://ponafet.ru/wix?keyword=rhyming+couplets+worksheet+year+1 PDF link annotation
    • http://istra-backwater.ru/552010804843wtod.pdfIn PDF document text
    • http://sputnews.com/85915638483d023n.pdfIn PDF document text
    • https://cdn.sqhk.co/jilebodetifa/jfItEha/63702283146.pdfIn PDF document text
    • http://ourfanz.com/mobile_payment_processing_canada0usr6.pdfIn PDF document text
    • http://bajifepeselok.sportsontheweb.net/gafekanutugesag.pdfIn PDF document text
    • http://appletopshop.ru/kizumirexetapigeloxufo5ssvn.pdfIn PDF document text
    • http://montana-media.com/lagozurodegowimek3sv9t.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460251/normal_602cb49892c03.pdfIn PDF document text
    • http://rbqjkwklnd.xyz/metabolic_confusion_diet_planyj20q.pdfIn PDF document text
    • https://cdn.sqhk.co/sefibenip/jcpAgiN/petrochemical_engineering_salary_in_tamilnadu.pdfIn PDF document text
    • http://jiwapadenejeza.getenjoyment.net/the_ravenous_pig_brunch_menu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371247/normal_601448679fbed.pdfIn PDF document text
    • https://linugezi.weebly.com/uploads/1/3/4/2/134265501/8906111.pdfIn PDF document text
    • https://panejukirid.weebly.com/uploads/1/3/1/6/131606092/7326536.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459792/normal_60079e2ade7b7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453102/normal_6036dc64bdc3b.pdfIn PDF document text
    • https://getaforufuzok.weebly.com/uploads/1/3/4/7/134733873/de8c4c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bavatesivo.myartsonline.com/dufutegajomizogepobelim.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_off0000c6d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6D2 5664 bytes
SHA-256: a36773d174d38b62c9b0eafcbcb9aaf1c8e636b443d9f4e56af1450aacc86e65
font_01_sfnt_off0000da1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA1F 10020 bytes
SHA-256: 1292708a8764bf26c45504242a3e21ddd770eaaa47d3e56022c93b222bb91d92