Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd8b5c03ebbc00e9…

MALICIOUS

PDF

73.0 KB Created: 2021-03-01 10:47:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 6938c4e76fd1f26d8f243835068a8e94 SHA-1: 6cc2ebd425409d333d3a1c3b03af6b2303b53114 SHA-256: cd8b5c03ebbc00e90ba544f1fd301ee9faabd19123553e57ba660a7ab08f17e1
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/wb?keyword=bausch%20and%20lomb%20microscope%20vintage PDF link annotation
    • http://dakisemakegag.sportsontheweb.net/80378129870.pdfIn PDF document text
    • http://sajiwurejedetu.sportsontheweb.net/vadigunawutizujizipomemul.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454811/normal_600b606bb84a1.pdfIn PDF document text
    • https://dabusoze.weebly.com/uploads/1/3/4/5/134585091/zokibux.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379854/normal_6009de3a728e2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387031/normal_6019f259694e5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4428342/normal_5fe2c52467519.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490936/normal_5fd176d682513.pdfIn PDF document text
    • http://nenegifivujaxu.mypressonline.com/89045018054.pdfIn PDF document text
    • http://dujaliz.iblogger.org/56633027146.pdfIn PDF document text
    • http://bizelapeto.iblogger.org/63118703402.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/numunenoji/30174640098.pdfIn PDF document text
    • http://nepanazunisemi.epizy.com/5613041984.pdfIn PDF document text
    • http://remigesej.epizy.com/nibemelefuluxesamofap.pdfIn PDF document text
    • http://mupamiposad.rf.gd/71682738226.pdfIn PDF document text
    • https://s3.amazonaws.com/dowadotiju/suvivinedemomem.pdfIn PDF document text
    • https://s3.amazonaws.com/minaxigevani/14818813256.pdfIn PDF document text
    • https://s3.amazonaws.com/fusidejebi/capezio_size_guide_shoes.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_off0000e019.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE019 5736 bytes
SHA-256: 91c02154d78c40490a33385e161d50302c63ba36d1d893ffece60acb545c30ca
font_01_sfnt_off0000f36e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF36E 10408 bytes
SHA-256: b6e4ccb21132c395a866c313971361fe607caecc0d8d9bf958558b14c86261f4