Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc68429474455d59…

MALICIOUS

PDF

76.7 KB Created: 2021-02-28 18:59:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 4f761b72c77e692091ec6f51fc149413 SHA-1: 4a177c36c061cb216b430655d23b66c7ecd0eb88 SHA-256: fc68429474455d5920ccd34acff8f9e11e0d5aa174721c60b2c760679b93cc02
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, contains text related to 'maternal child health nursing', suggesting a social engineering lure.

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://xajibur.ru/strik?utm_term=what+is+maternal+child+health+nursing PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4492259/normal_5fc6b32650c77.pdfIn PDF document text
    • http://nout-sale.site/cells_alive_animal_cell_answers28nvy.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499979/normal_602fb7b1be43a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372373/normal_600db71994f9f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403541/normal_602c77b2340f7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418764/normal_60133629ca8ba.pdfIn PDF document text
    • http://mklhhhh.space/6047973912023lo5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478950/normal_5fdd6b9b12c1d.pdfIn PDF document text
    • http://8gusevshop.space/movies_counter_2018_bollywood3rivh.pdfIn PDF document text
    • https://cdn.sqhk.co/rotusorukazi/MkQhfaE/tower_defense_galaxy_legend_mod.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417221/normal_5fdc70b825b94.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/kefiperizonofu/checkbook_app_for_iphone_and_android.pdfIn PDF document text
    • https://s3.amazonaws.com/safago/lakamazevatil.pdfIn PDF document text
    • https://s3.amazonaws.com/bopuxosavubare/gate._iitm._ac._in_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxagixil/excel_creditors_reconciliation_template.pdfIn PDF document text
    • https://s3.amazonaws.com/jivamubug/58910781302.pdfIn PDF document text
    • https://s3.amazonaws.com/wufujudisu/xmas_food_shopping_list_template.pdfIn PDF document text
    • https://s3.amazonaws.com/kegubinefuda/gafokaxomimut.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_off0000ed7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED7D 5364 bytes
SHA-256: cbeaee4d713cd2c56dce21a7a5aa577206700f242d6c0ed53423f95114521376
font_01_sfnt_off0000ff9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF9A 11176 bytes
SHA-256: fdfbe9eda948a39f24c655b25310d9a2495846d043997ae7d754fac4e77a0659

Open this report in the interactive analyzer, or submit your own file for analysis.