Malicious PDF — malware analysis report

Static analysis result for SHA-256 9007a6158c0df50a…

MALICIOUS

PDF

83.0 KB Created: 2021-02-20 12:59:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: ca423858658f3c5c9a3c236ee7193676 SHA-1: ae7c6d42b2f0b466ecb8c5e1c950a12f8abb341d SHA-256: 9007a6158c0df50afbef2559f82a082029c17388ccb797520f89a348bd01c256
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://baarspo.ru/strik?utm_term=what+did+carl+rogers+believe+in PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4392463/normal_5ff5650653385.pdfIn PDF document text
    • https://cdn.sqhk.co/koletexun/vEF4jeT/wefije.pdfIn PDF document text
    • https://cdn.sqhk.co/numorolele/hciiOie/call_of_duty_warzone_gameplay_ps4.pdfIn PDF document text
    • https://cdn.sqhk.co/dubutemaruxu/OQgh9x8/25404161660.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483071/normal_5fdc4aae1c531.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375355/normal_60303d2d533c7.pdfIn PDF document text
    • https://cdn.sqhk.co/duzixulok/hejhE5q/street_driver_download.pdfIn PDF document text
    • https://cdn.sqhk.co/tejilunuf/dZURl6X/xabajotejujixogafetonet.pdfIn PDF document text
    • http://steh-sistem.ru/best_gluten_free_lunches_for_schoolvwxed.pdfIn PDF document text
    • http://sparzha.club/cultist_simulator_achievement_guide6pgfl.pdfIn PDF document text
    • https://cdn.sqhk.co/piwizogir/Riijdij/balal.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488137/normal_600ecb7e43634.pdfIn PDF document text
    • http://se-mrush.com/sematoketodufunaldjcyz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385876/normal_5fdda4dee96db.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off00010987.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10987 5416 bytes
SHA-256: c90f84315fe041054e43bc54a18dcabc059f8219777caec90a2c11596efb8d8d
font_01_sfnt_off00011bf7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BF7 10236 bytes
SHA-256: 0a8eff252b9ad25dd6d5dc896d7c95d22230793a44bc038ba02da5a1fa24102b