Malicious PDF — malware analysis report

Static analysis result for SHA-256 282c3404086984e9…

MALICIOUS

PDF

72.3 KB Created: 2021-03-03 06:23:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 245a055f792f192102eab4c288375cc3 SHA-1: 37dfb19c79d475dc97b91082d920f1012224170b SHA-256: 282c3404086984e9d02140fffa5e7e67159d3a21623e11274f73fcccad6f7345
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://botokaw.ru/wix?keyword=renewable+and+nonrenewable+worksheet+answers PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4464709/normal_601987ecc5b84.pdfIn PDF document text
    • http://ergors.space/homer_iliad_loeb9cj1g.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501193/normal_6026b24156336.pdfIn PDF document text
    • http://calipshatngaccs1.xyz/zopelodu7wq8o.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483608/normal_601456dc5c8f2.pdfIn PDF document text
    • http://masowetimori.iblogger.org/wenilefevevawakij.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382966/normal_6025456a43b3b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403117/normal_601bc1a26a623.pdfIn PDF document text
    • http://gojepifega.22web.org/balanopostitis_en_perros.pdfIn PDF document text
    • http://trokot-shtorki.online/xazobor8l7bn.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/daniwodug/explain_how_to_use_a_hundreds_chart_to_subtract.pdfIn PDF document text
    • https://s3.amazonaws.com/nazekisigiduz/simple_resume_templates_for_freshers.pdfIn PDF document text
    • https://s3.amazonaws.com/venunamazozuzo/87599039267.pdfIn PDF document text
    • http://zovoxasus.rf.gd/manualidades_de_papel_higinico.pdfIn PDF document text
    • https://s3.amazonaws.com/gavexilatuvitaz/how_to_turn_on_garmin_edge_510.pdfIn PDF document text
    • http://tobikinos.onlinewebshop.net/73582169669.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_off0000de53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE53 5216 bytes
SHA-256: 5fe2cc4e82a4765e1b14768a463d836c67c5a350356fb64096d824e86e363006
font_01_sfnt_off0000f01a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF01A 10552 bytes
SHA-256: f0dd753c6543b5ddc04c6d55c5eb88201ee7472322aa6257fb0ec0771cfb0a39