Malicious PDF — malware analysis report

Static analysis result for SHA-256 f20e1dd372987472…

MALICIOUS

PDF

97.2 KB Created: 2021-02-22 15:18:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 51246acca1842cb1cda9844d4e2a2a46 SHA-1: e78c16d07fa01df970ca5a6e424c0a6cacbe8031 SHA-256: f20e1dd372987472ffb2669b65ff9ae5578ec30ed75720815617f675b9631c8d
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://maypoin.ru/123?utm_term=how+to+play+taboo+electronic+game PDF link annotation
    • https://golotarati.weebly.com/uploads/1/3/1/8/131856611/7564984.pdfIn PDF document text
    • http://usersonlineguardingsettings.site/fasuroronumetoa5xoy.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490754/normal_5fe35fc87b1fa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477873/normal_6029f90484642.pdfIn PDF document text
    • http://merovew.xyz/32852256417qv0u1.pdfIn PDF document text
    • http://euroshopmn.space/dantdm_skin_template7okxa.pdfIn PDF document text
    • https://kaneloko.weebly.com/uploads/1/3/1/4/131408798/sabonefegiz_migimemubode_bukegonewep_rufunoruvuso.pdfIn PDF document text
    • http://look-hotel.com/kafesinabofunizara8nxan.pdfIn PDF document text
    • http://vinnipoh.fun/integrated_chinese_answers7n35q.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://petenufafevut.rf.gd/linota.pdfIn PDF document text
    • http://texatutegelemov.rf.gd/50239524608.pdfIn PDF document text
    • http://jabaxuzadowepep.rf.gd/adon_olam.pdfIn PDF document text
    • http://zasizuv.rf.gd/56365410838.pdfIn PDF document text
    • http://wuwusawoviwu.rf.gd/authoritarian_personality_theory_reports.pdfIn PDF document text
    • http://fozikabev.epizy.com/85148202321.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_off00013fbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13FBC 5372 bytes
SHA-256: 3f541db8dfce3b27f4b52bffa2b768ffc7365f3addceb04f7a4463f766292d88
font_01_sfnt_off00015204.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15204 11264 bytes
SHA-256: 5aebdd2d30cab807ad7615f2ebb55df922c3d7c2617cccfdd2f9c49bdd16ff84