Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e2db1764096a2c8…

MALICIOUS

PDF

69.9 KB Created: 2020-12-05 00:16:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 9b3fa20d3891e6d2fbdb123f1b474f90 SHA-1: bf397750314db1b59c3c6a64ffd27c8ec86e0185 SHA-256: 8e2db1764096a2c8f0313e7cce650c7173e359db6bef9052264ad1cd611f0957
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL pointing to 'trafffe.ru', which is likely used to host a phishing page or download a secondary payload. The document body, though heavily obfuscated, contains text related to 'man made light examples' and the wkhtmltopdf application, suggesting a lure to disguise the malicious nature of the file. The presence of embedded URLs and the overall detection by security tools strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://trafffe.ru/123?utm_term=man+made+light+examples PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4367005/normal_5f874dc337059.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/gisujubolidine/best_audiophile_android_music_player.pdfIn PDF document text
    • https://s3.amazonaws.com/pukiza/78479780959.pdfIn PDF document text
    • https://s3.amazonaws.com/zurovajij/manual_for_philips_respironics_system_one.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/wefibekelalinikokotijukan.pdfIn PDF document text
    • https://s3.amazonaws.com/sefepugolupalax/astronauta_de_marmore_nenhum_de_nos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/451fcb73-f4c1-44b8-b3e8-b647bcf15776/spider_man_unlimited_download.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc33b8b3dfdd95b60e431f6/t/5fc3cde49b1ed03538518efe/1606667748849/borekapumazuroxawo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc2efc1e-23dc-4119-b2dc-ae58d43a30b4/a_new_leaf_f_scott_fitzgerald_summary.pdfIn PDF document text
    • https://s3.amazonaws.com/lokijuronig/formal_letter_writing_questions_for_grade_5.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/17605642-eca7-4a01-8413-ca88f542d86a/4930553551.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc7014702915d4a16f5f256/t/5fc9ae29be6684539de7588a/1607052842347/61335243780.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_off0000d287.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD287 5348 bytes
SHA-256: 8e6b5a25312a9686e10d997e587e3897a8db9acb704612845fa31fce51fdebfd
font_01_sfnt_off0000e4a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4A3 11536 bytes
SHA-256: f12fa85fa577a510f8d30b19c747bdf65abf7c907b40a8364868a5e542b81494

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