Malicious PDF — malware analysis report

Static analysis result for SHA-256 79f9d972f69236f8…

MALICIOUS

PDF

69.0 KB Created: 2021-05-18 00:58:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c67bdfd6e1dad0008e1d2d3ab1791212 SHA-1: d4c6916524b9040644977f11b58b3c3e874ec84d SHA-256: 79f9d972f69236f8b1c2d404a5eacb6b3e503409c10eb552631051856864616d
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL that appears to be a lure for downloading MP3s, but the URL itself is suspicious and associated with malicious activity. The document body, though heavily obfuscated, contains references to the suspicious URL and potentially misleading content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://nipisod.ru/strik?utm_term=afghan+jalebi+mp3+song+download+wapking
    • https://cdn-cms.f-static.net/uploads/4415051/normal_6065a841b37a5.pdf
    • https://cdn-cms.f-static.net/uploads/4369329/normal_6040766786171.pdf
    • https://cdn-cms.f-static.net/uploads/4387417/normal_60186a262a81b.pdf
    • https://cdn-cms.f-static.net/uploads/4481072/normal_5fdc2a1513fec.pdf
    • https://static.s123-cdn-static.com/uploads/4377704/normal_5fefdd9a85620.pdf
    • http://rekararavufi.iblogger.org/what_engine_is_in_the_maserati_granturismo.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/wufujudisu/business_letter_format_spacing_after_date.pdf
    • https://s3.amazonaws.com/kabisebax/sectional_view_engineering_drawing_exercises.pdf
    • https://s3.amazonaws.com/vefagotoje/boardman_road_bikes_size_guide.pdf
    • https://uploads.strikinglycdn.com/files/082cc01f-378c-4517-b069-cac8194617e1/funiniz.pdf
    • https://s3.amazonaws.com/tedowafomaru/resume_writing_format_for_job.pdf
    • https://uploads.strikinglycdn.com/files/4e20ab35-05b3-4541-90b8-839f7cad086a/easy_maths_tricks_free_download.pdf
    • https://s3.amazonaws.com/xopugup/13967781820.pdf
    • https://uploads.strikinglycdn.com/files/ed8a8db7-ca6a-47c7-8a63-12fc12b98575/an_introduction_to_language_fromkin_rodman_hyams.pdf
    • http://vuremekewema.rf.gd/chapel_house_surgery_formby.pdf
    • https://s3.amazonaws.com/liwafo/30627053374.pdf
    • https://uploads.strikinglycdn.com/files/6e45e9d0-0ee2-45fb-850d-d274f9fc10e4/mekizofawunagojopa.pdf
    • https://uploads.strikinglycdn.com/files/12310337-fcfa-43db-91cf-70d136e65d19/wisewobutuselozivufodu.pdf
    • http://gafigap.epizy.com/30445374966.pdf
    • https://s3.amazonaws.com/gurafoga/63392314832.pdf
    • https://s3.amazonaws.com/pajeriramal/camp_half_blood_confidential_espaol.pdf
    • https://s3.amazonaws.com/zabevog/latest_avg_antivirus_free_for_pc.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ce7f.bin
8db7031454e59acd91664fc6d7a9c00a9931f473e9627f3fa27e0bfb7b648d43		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCE7F 5884 bytes
font_01_sfnt_off0000e27e.bin
56eeb400334b1ff9f3af0175c688583559f62ce438d84d5dcbeee3c3f025a640		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE27E 10644 bytes

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