Malicious PDF — malware analysis report

Static analysis result for SHA-256 25ef047952fe1959…

MALICIOUS

PDF

78.6 KB Created: 2021-02-25 11:10:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: d1b40c087a3a858602577402fedc9df9 SHA-1: eed52d93a0b4980048b18e78aada2be895cc340d SHA-256: 25ef047952fe19594dcd6047a85b5792a2af3361243cc9f29d948b32538fa325
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://bologen.ru/aws?utm_term=noughts+and+crosses+tv+plot+summary PDF link annotation
    • http://dosaxixapaxa.medianewsonline.com/2468854481.pdfIn PDF document text
    • http://jasazotinalol.mygamesonline.org/sigmund_freud_dream_interpretation.pdfIn PDF document text
    • https://cdn.sqhk.co/bekutojeke/d3gejb4/76963464488.pdfIn PDF document text
    • https://cdn.sqhk.co/novigigexuxo/LhbbjfM/the_walking_dead_movie_2019_cast.pdfIn PDF document text
    • http://jabilevij.mypressonline.com/2500_in_1960.pdfIn PDF document text
    • https://cdn.sqhk.co/posojuvapono/tjeQyih/fulurimudojabazolipax.pdfIn PDF document text
    • http://gedadekenoz.mywebcommunity.org/pogiwoxozaseresisow.pdfIn PDF document text
    • http://fotubobuwenapu.scienceontheweb.net/14224446460.pdfIn PDF document text
    • http://fasekafalig.scienceontheweb.net/nozurata.pdfIn PDF document text
    • https://cdn.sqhk.co/tozegatopaxu/3uqifgf/checklist_manifesto_chapter_summary.pdfIn PDF document text
    • http://nugekurobeju.iblogger.org/84377756733.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vidugozu.atwebpages.com/night_owl_optics_nobg1_night_vision_goggles.pdfIn PDF document text
    • http://zaposupi.epizy.com/89676222161.pdfIn PDF document text
    • http://livirava.atwebpages.com/volume_calculation_formula_for_different_shapes.pdfIn PDF document text
    • http://piwakitidi.onlinewebshop.net/momanidolepinubijokex.pdfIn PDF document text
    • http://xodenumaverap.epizy.com/android_version_update.pdfIn PDF document text
    • http://xowobovu.myartsonline.com/roxezi.pdfIn PDF document text
    • http://denonewozififuz.rf.gd/bluecoat_aspley_6th_form.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_off0000f2c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2C0 5620 bytes
SHA-256: ef68ada7e163ed138469a6a4101be8bcd6e8116f888ac3c3743e62bd668052e0
font_01_sfnt_off000105cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105CD 11648 bytes
SHA-256: d643dd05e7198eb96fc991b17ebe1b1b9965f133eaa39f3075d64cd231a407d5