Malicious PDF — malware analysis report

Static analysis result for SHA-256 a343b202386daa4b…

MALICIOUS

PDF

72.9 KB Created: 2021-02-18 20:25:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: c3f371de9583c18782a9cd5eccd0803d SHA-1: 22eb9bbfefa60e29d8c0d02a14f815fa1c803bf2 SHA-256: a343b202386daa4bc943bfcb7caf1b5da605b1851682afeef7b2e7e0afea367d
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jottigo.ru/wix?keyword=reference+letter+examples+nursing PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4383678/normal_5fcbc89f66321.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469852/normal_5fe72583c9151.pdfIn PDF document text
    • http://insitemonitoring.com/divevuvogigefijuk0ec8s.pdfIn PDF document text
    • http://runmasten.online/dapiwusakoxomudusiradaturcm2bq.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367964/normal_5fff9d69df9fb.pdfIn PDF document text
    • http://onesmall.space/145826786526bq1v.pdfIn PDF document text
    • http://hookup666.site/25879937180s0sry.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478716/normal_5fdc987b71c33.pdfIn PDF document text
    • http://katermore.ru/jubasikengy0hr.pdfIn PDF document text
    • http://blog-millionaire.buzz/51296731061t5tbm.pdfIn PDF document text
    • http://fredo.bike/kulagofofozogudoxawi2srol.pdfIn PDF document text
    • http://vpntop.info/sevelasezo1g6sv.pdfIn PDF document text
    • http://test123test.xyz/funikefatebilusuzuwovat6bpb.pdfIn PDF document text
    • http://my-favshopg.online/practicas_de_cisco_packet_tracer_reszd5ro.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/tetofamuxulil/wubekinawodozeji.pdfIn PDF document text
    • https://s3.amazonaws.com/rupatojuko/edmond_de_rothschild_france_annual_report_2016.pdfIn PDF document text
    • https://s3.amazonaws.com/nafoxuda/91820794050.pdfIn PDF document text
    • https://s3.amazonaws.com/goneduzum/92909507892.pdfIn PDF document text
    • https://s3.amazonaws.com/tajimipojimo/21372845603.pdfIn PDF document text
    • https://s3.amazonaws.com/wobuzisibal/angry_whatsapp_status_song.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_off0000e039.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE039 5412 bytes
SHA-256: b4b639e917612eac4e360c4c4f7ffd51c48190bc68661fcfd8d81e5aab892bae
font_01_sfnt_off0000f297.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF297 10548 bytes
SHA-256: 13751ffe30f1777f3add752dc65bad8d9bab6f52d3e7324fd4c018955193c885