Malicious PDF — malware analysis report

Static analysis result for SHA-256 d301687053afc045…

MALICIOUS

PDF

81.7 KB Created: 2021-02-24 05:45:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 47ed2a45c92ae7f3ad6ed75beccd9faf SHA-1: c79eadd4b81688b61d62bc2e687ee28048ba39ba SHA-256: d301687053afc045ea4d004d1916402a66f2a400d8d5424739c4aac3fa305d71
96 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating an external URI and is flagged by a machine learning classifier and ClamAV as malicious. The document body, though heavily obfuscated, contains text related to 'Cyberpunk 2077' and a URL, suggesting a phishing or social engineering lure. The presence of embedded URLs further supports the malicious intent to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://seumenha.ru/123?utm_term=cyberpunk+2077+ps5+performance+vs+ps4 PDF link annotation
    • http://startask.ru/exam_questions_and_answers_in_business_law1z5at.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485435/normal_60271438381ac.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367013/normal_5fdee6c53860e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471995/normal_5fdd3130e36c4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456377/normal_600124124fec1.pdfIn PDF document text
    • http://fortuneocredit.com/7167622220c700a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366377/normal_600f9dbaf0d12.pdfIn PDF document text
    • https://cdn.sqhk.co/mevojazix/ggjfprc/40450061921.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/voxazedisula/zebapasirifilobeka.pdfIn PDF document text
    • https://s3.amazonaws.com/xukanomarexumu/85421902732.pdfIn PDF document text
    • https://s3.amazonaws.com/webipejonavuv/hungarian_rhapsody_piano_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/sizadagazagaj/dream_girl_movie_video_songs_free.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f41b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF41B 5836 bytes
SHA-256: 61813f47d06913ed338d5f48d0aa0e24645f4ab9f56d44d045b9c8c151ebd36c
font_01_sfnt_off000107f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107F6 10444 bytes
SHA-256: d8a11532b9e06d262e428e483dd73c75852415c60e4d248ffad48f57d2f6e527
font_02_sfnt_off00012b77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B77 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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