Malicious PDF — malware analysis report

Static analysis result for SHA-256 2eb312735b9366a0…

MALICIOUS

PDF

71.8 KB Created: 2021-01-12 09:09:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 4420f311fd77d136fc751eb6de10bcf2 SHA-1: 78b5911f43381c13a625eb1bbdd63f9f1e4eb87f SHA-256: 2eb312735b9366a08a9c83d5985d1fd35f86deae6b001deaebad7c4021a0f1fe
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL pointing to a suspicious domain. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. The document body, though heavily obfuscated, appears to reference a product, suggesting a lure to a malicious site.

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://trafficel.ru/123?utm_term=ozark+trail+2+person+tent+cot PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4494417/normal_5fe6529dd3761.pdfIn PDF document text
    • https://site-1172347.mozfiles.com/files/1172347/zedekazet.pdfIn PDF document text
    • https://cdn.sqhk.co/dakubakasilu/ha5X2hg/tujigikunirono.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408594/normal_5fdf6e189bcc4.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/warapagefasovi/metal_slug_unblocked_games.pdfIn PDF document text
    • https://s3.amazonaws.com/sitok/amma_amma_song_naa_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/divelikubapiwaj/hills_c_d_canine_canned_feeding_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/sezebepit/atmega32u4_dfu_bootloader.pdfIn PDF document text
    • https://s3.amazonaws.com/pipaneku/56292266641.pdfIn PDF document text
    • https://s3.amazonaws.com/zerepuzuze/gridview_pager_template_example.pdfIn PDF document text
    • https://s3.amazonaws.com/vazisi/jemijabovedaf.pdfIn PDF document text
    • https://s3.amazonaws.com/vexosafugunu/swords_and_sandals_2_stats_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/wifukedot/28610545540.pdfIn PDF document text
    • https://s3.amazonaws.com/vogubivajavofu/romanian_eal_worksheets.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_off0000dada.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDADA 5200 bytes
SHA-256: 264ef090b63d4cdb1bbbf90bf2d7923d7c38ee7899070d95886a656521a402ed
font_01_sfnt_off0000eca4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECA4 11092 bytes
SHA-256: d34602726ed5027edaf1304337657325745ab20238c2f6fa27bcf04d7ab89657

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