Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ee4b304e0dfe71c…

MALICIOUS

PDF

47.5 KB Created: 2021-06-03 06:19:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 72ac70d4b3f8e0a5b8f0dc91bf18bef9 SHA-1: 203c117b83adbc487fd84032ee2e0e84ba1092ff SHA-256: 9ee4b304e0dfe71ce6d183230c807ed1a5119dd4842e4169bd9634986bc2b904
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a fake CAPTCHA lure, designed to trick users into interacting with the document. It also embeds external URLs pointing to potentially malicious files, suggesting a download or redirection attempt. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

Heuristics 4

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://netcdn.online/app/406889139/free-spin-hack-coin-master-2021-game-hack PDF link annotation
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/krnl-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/free-coin-master-cheats_GM406889139.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/best-site-for-free-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/free-coin-master-spin-app_GM406889139.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/coin-master-hack-game-download_GM406889139.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/how-to-get-minecraft-for-free-2021_GM479516143.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/minecraft-esp_GM479516143.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/free-robux-earn_GM431946152.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/best-minecraft-hacked-client-2021_GM479516143.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/how-to-get-free-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/coin-master-free-link-blogspot_GM406889139.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/2021-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • http://perpustakaan-pelita.sdnpercobaan2yogyakarta.com/repository/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005222.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5222 25640 bytes
SHA-256: 15d3f430e3c03d6a13071d91f7c68d3b2ae335c85703d011da3dbab1171d0377
font_01_sfnt_off00008c72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C72 2880 bytes
SHA-256: b053084cafd01c649462d87667ba56c569d6480ce60e7d20ae57ef6124cf178e
font_02_sfnt_off0000965d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x965D 18456 bytes
SHA-256: f06c00d52fdbfeb3859167a0a2229be9ce2cdc54db22dbc1e88046af3d45da49

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