Malicious PDF — malware analysis report

Static analysis result for SHA-256 39ef7d176a2c6c3d…

MALICIOUS

PDF

70.6 KB Created: 2021-02-26 04:04:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: ddc5a54c52399824f57a0a2d6edff333 SHA-1: ee4744c9a102967e5330fd9b8d88d9da2540da87 SHA-256: 39ef7d176a2c6c3df73fcf5cb2ed862fa915e595af9dc3ebcbfc76a6aad6e48b
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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=ad+free+pandora+apk PDF link annotation
    • http://rozujed.sportsontheweb.net/discipline_equals_freedom_book_depository.pdfIn PDF document text
    • http://bibopasaxuvibu.mypressonline.com/what_is_the_best_creme_frappuccino_at_starbucks.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384655/normal_5ff011d6745bc.pdfIn PDF document text
    • https://cdn.sqhk.co/gimexigerub/Rjihhja/74289686625.pdfIn PDF document text
    • https://cdn.sqhk.co/jabisopomuxo/f1ifb7k/crossy_road_space_astronaut.pdfIn PDF document text
    • http://simopuvoramawu.mywebcommunity.org/user_story_acceptance_criteria_examples_given_when_then.pdfIn PDF document text
    • http://luwogexejel.getenjoyment.net/64454788037.pdfIn PDF document text
    • https://cdn.sqhk.co/sewadokoka/heLyjaQ/lokicraft_juego_gratis_para_pc.pdfIn PDF document text
    • http://linavaluviriv.getenjoyment.net/is_sanji_stronger_than_his_family.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pepezuvizomu.rf.gd/gepevamipifon.pdfIn PDF document text
    • https://s3.amazonaws.com/divelikubapiwaj/21810427174.pdfIn PDF document text
    • https://s3.amazonaws.com/kotodur/descargar_libro_alguien_esta_mintiendo.pdfIn PDF document text
    • http://rogofideb.onlinewebshop.net/javosamefeso.pdfIn PDF document text
    • http://rulamiji.onlinewebshop.net/nibofufoxawebaseket.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_off0000db48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB48 4880 bytes
SHA-256: d8eaa517aca9600501a290d798ee844863407c7cbaad00604d4a2dae0895f5a4
font_01_sfnt_off0000ebf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBF3 9944 bytes
SHA-256: 6cdb3d7e4eed0058520dfde5b7c6be3ff32b8bdf776546abee8dc29f93992385