Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb4bd34a28b33ebf…

MALICIOUS

PDF

59.3 KB Created: 2020-11-27 03:34:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47f120dfe6d17cccd891581f4c30bba4 SHA-1: 16a1891d5263191c2dcb2dd26a920f6a4eeef47c SHA-256: eb4bd34a28b33ebf395de0491a61242f4fbf090f3ed7cf0306e297ac9db7c4e2
152 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://traffmen.ru/strik?utm_term=snail+mail+game+download+for+android'. This URL is designed to trick users into downloading a game, which is a common phishing lure. The ML classifier also flagged the PDF as malicious, supporting the assessment of a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8093

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://traffmen.ru/strik?utm_term=snail+mail+game+download+for+android
    • https://cdn-cms.f-static.net/uploads/4465267/normal_5fa59067256bd.pdf
    • https://jufozovujibozom.weebly.com/uploads/1/3/4/3/134360308/zekuna.pdf
    • https://tijogarukaro.weebly.com/uploads/1/3/4/7/134710746/zugelitali_kaxemesokazusij_tonubiza.pdf
    • https://cdn-cms.f-static.net/uploads/4403688/normal_5fa9e865ee39a.pdf
    • https://cdn-cms.f-static.net/uploads/4465949/normal_5fa5127c7db34.pdf
    • https://cdn-cms.f-static.net/uploads/4474722/normal_5fa6c04a681d6.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/vibuvomomuv/building_construction_diploma_book.pdf
    • https://s3.amazonaws.com/tanikanaw/essae_ds-_450_calibration_manual.pdf
    • https://s3.amazonaws.com/zuponefi/favevepamuw.pdf
    • https://s3.amazonaws.com/kibavutibeved/beatles_sheet_music.pdf
    • https://s3.amazonaws.com/palevijuj/manual_for_maytag_refrigerator_plus.pdf
    • https://s3.amazonaws.com/bifamomove/wusut.pdf
    • https://s3.amazonaws.com/potevip/63922104423.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c155.bin
895c9cb12655e4ebb05ad7a15a36ed331315689dd52aad322eb8be532b33f954		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC155 5244 bytes

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