Malicious PDF — malware analysis report

Static analysis result for SHA-256 94832f8d345b5789…

MALICIOUS

PDF

67.9 KB Created: 2021-03-06 21:47:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 3679ee0c8afbffa1a7cfddf744287102 SHA-1: 481006da594a42575b47a07d45c0293152b19a44 SHA-256: 94832f8d345b5789f583a0056bfe7cc313910d38215f238cdcb65c76eafdb95c
94 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is highly indicative of a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support its malicious nature. The document body, though heavily obfuscated, appears to contain metadata related to the PDF creation, but the primary malicious indicator is the external URI.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9935

Heuristics 3

  • 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
  • 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://resalured.ru/award?keyword=belkin+ac750+factory+reset PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4373776/normal_5febc7f0c5153.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416151/normal_5fdf75ac3022a.pdfIn PDF document text
    • http://nutosuvitiraj.scienceontheweb.net/how_many_batteries_in_apc_smart_ups_3000.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476938/normal_5ff713ba3849a.pdfIn PDF document text
    • http://pidikugojan.22web.org/one_summers_day_sheet_music_violin.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377100/normal_5fee3ff0343e6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453336/normal_60166939995be.pdfIn PDF document text
    • http://sogixusi.medianewsonline.com/lg_top_load_washer_ratings.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392862/normal_6016c284e918a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://demunoj.epizy.com/jasiruguxexero.pdfIn PDF document text
    • http://ranokevizo.rf.gd/bhagavad_gita_in_tamil_ebook.pdfIn PDF document text
    • https://s3.amazonaws.com/wajufifenoxuj/29242484876.pdfIn PDF document text
    • https://s3.amazonaws.com/turip/6674004901.pdfIn PDF document text
    • https://s3.amazonaws.com/fadupazageraf/tewuresiturejizebazutarup.pdfIn PDF document text
    • https://s3.amazonaws.com/jubiferekaka/48206155303.pdfIn PDF document text
    • https://s3.amazonaws.com/bulujono/29597877723.pdfIn PDF document text
    • https://s3.amazonaws.com/daraniwekamidir/87280351367.pdfIn PDF document text
    • https://s3.amazonaws.com/rurovikejigibu/43212176706.pdfIn PDF document text
    • https://s3.amazonaws.com/damerirazib/betlion_apk_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jujojomojemiz/gmetrix_photoshop_test_1_answers_2015.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f09b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF09B 5436 bytes
SHA-256: 5fb75aad7c4c45a453a1dddf56cfddccef73e8767f231112cc1eea021a28c45e

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