Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9ceba7f9fe9cfa0…

MALICIOUS

PDF

69.6 KB Created: 2020-12-26 22:16:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7da64977781972ad6e96b119e4c441e3 SHA-1: d629591c30e6f38c370f983d7f229ec3adb00333 SHA-256: e9ceba7f9fe9cfa05d4cdff7f363351f9558f343bb030f962b930cde936f21a7
152 Risk Score

Malware Insights

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

The file is a PDF that contains a link to a known malicious redirector. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded URL is the primary indicator of compromise, suggesting the document is designed to redirect users to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9643

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://gettraff.ru/aws?utm_term=tabloid+versus+broadsheet+newspapers
    • https://cdn.sqhk.co/liwewajawab/ggifx96/quickbooks_online_accounting_invoicing_expenses.pdf
    • https://cdn.sqhk.co/fawabanof/jfo3Aif/oklahoma_state_football_radio.pdf
    • https://cdn.sqhk.co/wubumeze/CHEhaff/nhl_playoffs_today.pdf
    • https://static.s123-cdn-static.com/uploads/4451561/normal_5fe5ec07965e7.pdf
    • https://cdn-cms.f-static.net/uploads/4365576/normal_5f8733a9ccaca.pdf
    • https://static.s123-cdn-static.com/uploads/4384469/normal_5fcf8363e4c86.pdf
    • https://cdn.sqhk.co/barugogip/chidRhh/spirit_halloween_near_me_nj.pdf
    • https://cdn-cms.f-static.net/uploads/4386849/normal_5f9588fdf3af0.pdf
    • https://cdn-cms.f-static.net/uploads/4484107/normal_5fbbe2f4bd365.pdf
    • https://cdn-cms.f-static.net/uploads/4463526/normal_5fb35d214f29d.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/43d4eafc-80ac-4d95-a13b-fdddb0e6f767/the_great_american_songbook.pdf
    • https://uploads.strikinglycdn.com/files/e0b2e515-9dbf-483c-a15d-fa737df32c25/tilofivaziguraxubuzofiwi.pdf
    • https://uploads.strikinglycdn.com/files/a009e4e7-a7d2-43d5-ab9d-280829cf71aa/bd_atc_guide.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010995.bin
d9559397022378c753803d84ae6c9dcfd0b41a924611cfc1684e75e888c4c283		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10995 5288 bytes

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