Malicious PDF — malware analysis report

Static analysis result for SHA-256 f906e31b0cc4c3f0…

MALICIOUS

PDF

71.9 KB Created: 2021-03-04 11:37:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 20358e4b3450ac4297489f026d458db4 SHA-1: e14aa41f1f163b46d2aad019de9c7b01bd573a3f SHA-256: f906e31b0cc4c3f0862f7eba8488ac9c70bf1318df80cd878591f8035be478d0
136 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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://soxebez.ru/wix?keyword=harvard+pool+table+air+hockey+combo+parts PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4451551/normal_5ff7bae107993.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476011/normal_5fe3ade8831a3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380536/normal_5ff56a3549a71.pdfIn PDF document text
    • http://woxijakuzadajew.getenjoyment.net/91127626763.pdfIn PDF document text
    • http://kapunogukak.iblogger.org/luxorujapotojesi.pdfIn PDF document text
    • http://fezibinuzot.iblogger.org/kanonuximumudopemulo.pdfIn PDF document text
    • http://ruwexonofedu.iblogger.org/beholder_full_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380379/normal_5fdc73cca8d02.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369632/normal_5fd38490a767b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454045/normal_5fe5291fd8358.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nemojasa.epizy.com/pojixajirimadokew.pdfIn PDF document text
    • http://sonisan.epizy.com/sokujorawif.pdfIn PDF document text
    • http://vofiwevo.epizy.com/sanitary_waste_disposal_methods.pdfIn PDF document text
    • http://kugefosames.rf.gd/how_do_i_connect_my_netgear_wifi_extender_to_ethernet.pdfIn PDF document text
    • http://lubuzasoxevixan.epizy.com/sepsis_guidelines_summary.pdfIn PDF document text
    • http://ziwivazud.onlinewebshop.net/biditixonibanobarasafos.pdfIn PDF document text
    • http://jiwenufaxo.epizy.com/emiway_bantai_khatam_rap.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_off0000db30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB30 5640 bytes
SHA-256: b34902c52d45dcd11624dea43a9863a59cc61442220065fe7af70ce7725642de
font_01_sfnt_off0000ee38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE38 10476 bytes
SHA-256: 065c8ec33f812ec69bf2f2265b7d960055b1e50846725773ff61a616fb479d6b