Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc4e6c77fe010ba8…

MALICIOUS

PDF

83.3 KB Created: 2021-03-15 10:19:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e564320bb345f05948a497c625b81b68 SHA-1: 18ff7bfda8b9f8d25bba54c1b58a0ed4d488f0d9 SHA-256: bc4e6c77fe010ba83e2a5f15c9cc259b1662a7d27d3b75a7c0231e3cd8fce1fb
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, indicating a phishing or trojan payload. It contains an embedded URL that appears to be part of a lure, directing users to a site that likely hosts malicious content or further exploits. The document body, though heavily obfuscated, contains metadata related to the PDF's creation and a search query, suggesting a social engineering pretext.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://leonvi.ru/award?keyword=le+bourgeois+gentilhomme+moliere+pdf
    • https://cdn.sqhk.co/ninujamezol/ihhbHzG/usa_network_channel_number.pdf
    • https://static.s123-cdn-static.com/uploads/4411701/normal_5fe110a9ee5a2.pdf
    • https://cdn-cms.f-static.net/uploads/4477921/normal_602eea9ad2381.pdf
    • https://static.s123-cdn-static.com/uploads/4387702/normal_5fcf59c8e5957.pdf
    • https://cdn-cms.f-static.net/uploads/4369932/normal_603123a44753b.pdf
    • http://bugesawuterodam.iblogger.org/encounter_telugu_movie_songs_free.pdf
    • https://cdn.sqhk.co/jivonaxadu/f6hjVhd/nbc_sports_app_download_for_android.pdf
    • https://static.s123-cdn-static.com/uploads/4415525/normal_5fc7d78736470.pdf
    • https://cdn-cms.f-static.net/uploads/4415770/normal_603828acbf2a8.pdf
    • http://paximosikelos.22web.org/48376058192.pdf
    • https://cdn-cms.f-static.net/uploads/4423732/normal_604cdcfb8ce2e.pdf
    • http://nazixoja.iblogger.org/1866439465.pdf
    • https://static.s123-cdn-static.com/uploads/4466408/normal_5fe18dc39b885.pdf
    • https://cdn.sqhk.co/jedelamodafa/hfhb10a/navigating_the_xfinity_stream_beta_app_on_roku.pdf
    • https://cdn-cms.f-static.net/uploads/4415051/normal_5fe929ac46e53.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://5984e891-aecd-43e6-866f-efdb297c9c35.filesusr.com/ugd/403565_a3704d606fdb418cadbb2a881826ef38.pdf?index=true
    • https://b8e64ff8-a522-4625-8e91-70fe47930cb2.filesusr.com/ugd/37987b_58cf103e68114680b371a4188758eda3.pdf?index=true
    • https://s3.amazonaws.com/tamovagag/pokovipopafejulodetobes.pdf
    • https://s3.amazonaws.com/wixamupelinere/holt_mcdougal_geometry_textbook_answers_page_546.pdf
    • https://ba3a7bb5-edd2-4228-b29c-cf272df6a868.filesusr.com/ugd/bd1c09_7613e8c498a743cf8fe0886820025c9c.pdf?index=true
    • https://53ebb62d-ddaf-432f-8dc3-1f4746653467.filesusr.com/ugd/bbd3cf_0c2b79f954f54aa897b77c87e8df5ae4.pdf?index=true
    • http://zepuzirubigu.rf.gd/xefiraligipegexuto.pdf
    • http://dakekamuma.rf.gd/airlift_movie_all_song_video.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_off000100fa.bin
481cee9b69f5a98247e34a45c6ccadc4fc1bf762c16dd8686947b935d739dedb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x100FA 5328 bytes
font_01_sfnt_off000112ed.bin
35f30feb9bd415d3efab14daad2bf219104b05816ed47843b0176f5e584ac692		 pdf-font-stream PDF embedded font (sfnt) at offset 0x112ED 13604 bytes

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