Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d27f595fdc1afef…

MALICIOUS

PDF

69.8 KB Created: 2021-03-03 22:49:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 074ff546d24bc9fb125011758e5fe67f SHA-1: 716c1d025a3354cbff909e553bb4ebb5a99831a5 SHA-256: 0d27f595fdc1afef86c4e07f3c491d2916b5456f87ce28b00ef8d0075e75fe7b
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • 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://druttle.ru/wix?keyword=solubility+rules+chart+chemistry PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4422382/normal_601b50599e34f.pdfIn PDF document text
    • http://ninuxalezopo.getenjoyment.net/how_to_deal_with_fear_of_intimacy.pdfIn PDF document text
    • https://pukakiliratof.weebly.com/uploads/1/3/4/7/134768090/tujazozo_mowijivu_rebagonigubo_tojine.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366969/normal_601ad91ce48d9.pdfIn PDF document text
    • https://pilonalamajavex.weebly.com/uploads/1/3/1/1/131164122/4023295.pdfIn PDF document text
    • http://pofaduxiruk.getenjoyment.net/how_many_books_are_there_in_total_in_the_catholic_bible.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377908/normal_5ffe026c9ef59.pdfIn PDF document text
    • http://jivusibofonefud.mygamesonline.org/kefuxakurilugik.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bumurulepowele.myartsonline.com/38406229917.pdfIn PDF document text
    • http://nokemufebevezo.rf.gd/gezolifagotu.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_off0000d5c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5C9 5384 bytes
SHA-256: 2136e96089c70fc59224e3af1496ced258194cce41ef7d63d1d5f6c58d8f1ec2
font_01_sfnt_off0000e7f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7F1 10284 bytes
SHA-256: 3f8d9e8c474574159f00af58f2057cdb8f46a5593432c5046b5e7d62fd45156c