Malicious PDF — malware analysis report

Static analysis result for SHA-256 86ea11bc428ca62a…

MALICIOUS

PDF

69.8 KB Created: 2021-02-13 11:23:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: b910093ecfb0a0decc0d43cd55b0e20b SHA-1: ad86735a394b7adc1e6235e04fe803c9bdb4290e SHA-256: 86ea11bc428ca62aff5392ac337399d32a4413d32f31f00564a950c6fc422dde
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/aws?utm_term=article+analysis+sample+apa+format PDF link annotation
    • http://testertumentum.space/xekeredinoracm3qo.pdfIn PDF document text
    • http://xekaleduwam.iblogger.org/73819914171.pdfIn PDF document text
    • https://cdn.sqhk.co/lajefage/ehjgfjc/thruxton_classic_restoration.pdfIn PDF document text
    • http://basvuruizleme.online/liderazgo_transformacional_y_transaccionalaw3ss.pdfIn PDF document text
    • https://cdn.sqhk.co/raxoxawupej/aiaZjjq/pamarizomomedosowuvarekul.pdfIn PDF document text
    • http://proflist-kursk.ru/rebesokudadidopalewanaws9at.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418367/normal_5fe9595e7cf61.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369793/normal_5ff16f9bd59a3.pdfIn PDF document text
    • http://kamaz-ftc.com/hymenolepis_diminuta_huevojn7m0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486566/normal_6025c901a1ebe.pdfIn PDF document text
    • http://makeyourself.xyz/kasagotakupepeo75n.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416322/normal_5fcf33559a7b9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kamiwivexa.epizy.com/97443938641.pdfIn PDF document text
    • https://s3.amazonaws.com/povelenavuviw/71493720710.pdfIn PDF document text
    • http://wesufonezis.epizy.com/39698068493.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_off0000d399.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD399 5252 bytes
SHA-256: cac6cc276127fdcb18f820243e370338ad9c5309c5109fe02be6aa4860a629c4
font_01_sfnt_off0000e56d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE56D 10820 bytes
SHA-256: 39902b9c0541014780f6a93de41819df908c757d0d6eebc3fe68e8c3cbcc52d7