Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd00f15aa5cf10b0…

MALICIOUS

PDF

79.6 KB Created: 2021-02-11 00:51:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: e932ae1d4bd608404ef09a5701256f0f SHA-1: 8614a9b50cd3def7ad0e7c63e64799bb15e4e519 SHA-256: fd00f15aa5cf10b08a7dd77142794d7d8974d3012a376432665a6e39678ec430
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://druttle.ru/123?utm_term=plague+inc+cheats+unlock PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4496826/normal_5fd68ad85d850.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451752/normal_5ff2be2eafeb1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453579/normal_5fd1258a48878.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455660/normal_6022067de38a9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452626/normal_5fcacb713569c.pdfIn PDF document text
    • http://yachts-4-sale.com/80434176130jhwzb.pdfIn PDF document text
    • http://brettlockhart.com/30023894902kzpag.pdfIn PDF document text
    • http://kamaz-ftc.com/nursing_process_book85xb2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423189/normal_60245f26d87b2.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/lorifawuvawot/metanoji.pdfIn PDF document text
    • https://s3.amazonaws.com/fewifuwu/the_innocents_2018_netflix_parents_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/defujo/59114912619.pdfIn PDF document text
    • https://s3.amazonaws.com/tokudapele/rewomabisor.pdfIn PDF document text
    • https://s3.amazonaws.com/bitizopovopaso/candida_glabrata_uti_treatment_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/dazuxujepov/bepovejijuvov.pdfIn PDF document text
    • https://s3.amazonaws.com/lorugipopuxe/wufolonezaguxowuderov.pdfIn PDF document text
    • https://s3.amazonaws.com/muxegeza/leica_captivate_user_manual.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_off0000fb15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB15 5028 bytes
SHA-256: 16a9bc8d8486daee5be47ca08ae4e075758b28b5ce0c37aec10bcbaf659909ec
font_01_sfnt_off00010c32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C32 11028 bytes
SHA-256: 8dc18022135d7779fdc94e9ac6ca19d6d27b11d26dc831f82d4821b365b84449