Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba9d4dd5f48c0fcd…

MALICIOUS

PDF

66.8 KB Created: 2021-02-25 20:51:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 0f1240906b1292eef65cd96309a662e3 SHA-1: 5bb978ba8921d483ed6ba4a7da3b3de5c4ccb7fd SHA-256: ba9d4dd5f48c0fcd7178afd11601d233d67255cf20729a7d5530eef9fd4ae825
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains an embedded URI pointing to a suspicious domain, suggesting it's used to redirect users to a potentially harmful site. While no scripts were explicitly extracted, the PDF structure and embedded URLs are consistent with phishing or malware distribution tactics.

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://jottigo.ru/123?utm_term=how+to+connect+yamaha+rx-v365+to+tv PDF link annotation
    • https://cdn.sqhk.co/lupokuna/hgD3hgd/human_life_international_kenya.pdfIn PDF document text
    • https://cdn.sqhk.co/kipasewimoni/ejehcgf/basketball_free_throw_drills.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453108/normal_5ffc8c1fea203.pdfIn PDF document text
    • https://cdn.sqhk.co/xogedusov/jjcdiew/85546972447.pdfIn PDF document text
    • https://cdn.sqhk.co/pananumujo/aighjgh/44028429211.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418566/normal_5fd65273d8ae5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420230/normal_600e621384211.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392193/normal_5fe4838a372ac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368242/normal_601bb342a5562.pdfIn PDF document text
    • https://cdn.sqhk.co/janawezexoj/zMHgi6p/egg_wars_para_pc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471723/normal_5ff324bdb4a72.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413112/normal_601a5d30bab4c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405419/normal_5ff5df59ad82d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://forozilixoder.rf.gd/harvest_moon_a_new_beginning_guide_book.pdfIn PDF document text
    • http://lofupiwosilabo.epizy.com/the_book_thief_teacher_guide.pdfIn PDF document text
    • http://rulakilelakeze.epizy.com/jujideguxofewuf.pdfIn PDF document text
    • http://favigawesuwevo.rf.gd/how_to_do_keto_diet_vegetarian.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_off0000c932.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC932 5584 bytes
SHA-256: 1025a72969a5113d40e3ba88b2ec27a70c7ff9f2fbe79cfbbc32dd1e11863ee6
font_01_sfnt_off0000dc2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC2A 9924 bytes
SHA-256: 41fd6a629e1b36be1754ad307a4a354e1f3ddadafdf5b0e6a2ffc3033d1a190b

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