Malicious PDF — malware analysis report

Static analysis result for SHA-256 024d5b5575c4b5ba…

MALICIOUS

PDF

73.7 KB Created: 2021-02-18 14:52:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: fc301fd6e9f2b48937d511ba5c2eaa4e SHA-1: 4e1e6920908254e0bbc6e017f0195c9ff3018b6d SHA-256: 024d5b5575c4b5ba3a96a93fa3cfa4e867f3cce0c34151a0aabfb3b17a77ee73
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The embedded URL, 'https://maypoin.ru/wix?keyword=descargar+spotify+hackeado+apk+2017', suggests a phishing or malware distribution lure, likely related to downloading cracked software. Although no scripts were explicitly extracted, the PDF structure and embedded URI are strong indicators of a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://maypoin.ru/wix?keyword=descargar+spotify+hackeado+apk+2017 PDF link annotation
    • http://xtreme-sport.ru/verbs_for_each_level_of_blooms_taxonomycb84z.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393502/normal_6002e53189c69.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374373/normal_601f2e0af0104.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455876/normal_6005dc3337279.pdfIn PDF document text
    • https://cdn.sqhk.co/kuzetuzame/fjgQ1jc/lovejoy_pizza_hours.pdfIn PDF document text
    • http://pusilawabozizur.22web.org/baklol_ba_maugi_video_mp4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417413/normal_5fcd7c067e4a4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418991/normal_600339dbbd217.pdfIn PDF document text
    • http://xruhdfo.site/jtm_fit_the_functional_methodrbq28.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379856/normal_602642d1c7d9d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wadarudi.epizy.com/xilirefoxidasekas.pdfIn PDF document text
    • http://kozusabupo.epizy.com/evolution_of_built_environment.pdfIn PDF document text
    • http://tubupokus.rf.gd/76831038914.pdfIn PDF document text
    • http://zarevarepi.epizy.com/pedatokagu.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_off0000df34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF34 5956 bytes
SHA-256: e6d5cb0f6b2ddf8a62b5439e875546a6d9e1186d7ccf1eca6ef8de9e5bdb2ccd
font_01_sfnt_off0000f39a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF39A 12376 bytes
SHA-256: aa41964ed37cf9685d6793386fbb058194430ba9b87d1e20c0bb6233afeb58f9