Malicious PDF — malware analysis report

Static analysis result for SHA-256 606eea14ce9b3f98…

MALICIOUS

PDF

68.5 KB Created: 2021-01-29 05:22:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 774d1e243cecc3b166c9f4d37a7731c3 SHA-1: 9c71c73afc38b8a67066b94812c3d7d84e19917d SHA-256: 606eea14ce9b3f9860d4ae1a75f25cfaccb1b6b469d715733046ac979b2a0d29
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/123?utm_term=aqw+private+server+non+hamachi+play+now PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366017/normal_5fe977fc2869c.pdfIn PDF document text
    • http://ultra0.space/34239958809mqfpa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419412/normal_600ed181d8b82.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421201/normal_5fe78a676d6d2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450502/normal_5fc5bed176a7a.pdfIn PDF document text
    • http://mrt-64.ru/22008122355fze3d.pdfIn PDF document text
    • https://niromovikusuzu.weebly.com/uploads/1/3/4/6/134651616/6243d.pdfIn PDF document text
    • https://cdn.sqhk.co/mejofiwog/ejhCvx0/colour_block_jeans_womens.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454556/normal_5feec4a098b33.pdfIn PDF document text
    • https://miletotafog.weebly.com/uploads/1/3/4/7/134758503/nexesixas.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/zozuxukoxo/datuganabuvolemojab.pdfIn PDF document text
    • https://s3.amazonaws.com/wovitiku/facebook_auto_liker_bot_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/bivanud/update_google_chrome_latest_version.pdfIn PDF document text
    • https://s3.amazonaws.com/vososasoxumete/fovokeribesabes.pdfIn PDF document text
    • https://s3.amazonaws.com/werowibovezoje/lagu_scared_to_be_lonely_cover.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_off0000c4e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4E0 5544 bytes
SHA-256: 0adb9cab46d80b7fce84465a2d0047ded9356b5f6bd76c4d021796a5eaa52f35
font_01_sfnt_off0000d7b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7B0 14248 bytes
SHA-256: 8c10bc62094b8d79e7f9ce5595a169c931be320e380965529b4e3e1bf66d68f7