Malicious PDF — malware analysis report

Static analysis result for SHA-256 7de88d207fe48baf…

MALICIOUS

PDF

69.8 KB Created: 2021-02-11 06:40:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e5f9a5e78388c2ca05b875cd8697dd3a SHA-1: 64e6e7927494b31982dd8e65221a2073d78d6c85 SHA-256: 7de88d207fe48baf5fa0e3a9b67c52f126cb505215f78541157c907cc43710f4
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://seumenha.ru/123?utm_term=tempstar+heat+pump+troubleshooting PDF link annotation
    • https://cdn.sqhk.co/dimowitop/lgd878H/zelodewidu.pdfIn PDF document text
    • https://cdn.sqhk.co/nalawanuxa/aiejhsO/lilevelegukekek.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393916/normal_6001e33de65b9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457868/normal_5fe1326219b9a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470389/normal_60068443abe65.pdfIn PDF document text
    • https://cdn.sqhk.co/kufomopinu/ifUjfJC/flip_surfing_colors_mod_apk_unlimited_money.pdfIn PDF document text
    • https://cdn.sqhk.co/zukasedu/gigfQgg/96492488556.pdfIn PDF document text
    • http://mozujana.22web.org/robot_0._2_link.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452852/normal_5fe95bcbc70f9.pdfIn PDF document text
    • https://cdn.sqhk.co/nenuguvan/hJzjaMi/hashtags_for_instagram_photography_2020.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kisolapuri.rf.gd/24780719083.pdfIn PDF document text
    • http://dojagosixotebut.rf.gd/apple_ios_13_update.pdfIn PDF document text
    • http://favagapararo.epizy.com/bulgaria_visa_form_online.pdfIn PDF document text
    • http://zilapiwet.epizy.com/lotus_notes_10_client.pdfIn PDF document text
    • http://bajipogijos.epizy.com/zanazojoxegisi.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_off0000d52c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD52C 5320 bytes
SHA-256: 923e7be0f09476d3dc94b1068f8def4484621d9adf5a50cca66356aac2537e8a
font_01_sfnt_off0000e716.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE716 10332 bytes
SHA-256: 3585a07aa0bef0d9e3fbbf18ddddb4015c70f34c7f9d86a1c56deabd3ad56023