Malicious PDF — malware analysis report

Static analysis result for SHA-256 29663f01837f3f43…

MALICIOUS

PDF

48.1 KB Created: 2021-06-03 10:46:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 644c9547da9cfef8e689e4acd06074d0 SHA-1: 78aa979722c1ae75deb9fb3ec8f4e93a734a68a7 SHA-256: 29663f01837f3f43b66060d86e0492a7693a48579ef50f447e2e01fa3d2c7311
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a "Coin Master Hack Download 2021" and includes a high-risk heuristic for requesting secret recovery information. It also embeds an external URI pointing to a download URL, suggesting the document's primary purpose is to trick users into downloading and potentially executing a secondary payload. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

Heuristics 4

  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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/coin-master-hack-download-2021-game-hack PDF link annotation
    • http://digilibfisip.unla.ac.id/repository/free-avatar-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-hack-apk_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/www-cheatsk-com-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-club-hack_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-free-spins-app-android_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/toolbox-for-mcpe_GM479516143.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-roblox-hair-boy_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/download-minecraft-free-hiapphere_GM479516143.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/minecraft-realms-free-codes_GM479516143.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-apk-hack_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-free-raid-link_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-hack-coin-master-game-without-verification_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/can-you-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/online-coin-master-free-spin-app_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-free-spins-iphone-2021_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-with-no-survey_GM431946152.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_off00005138.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5138 25640 bytes
SHA-256: cb07677b3230ce7906b8f91b58b86980d2d845ccf9664c95c6fd7dd08f5e3330
font_01_sfnt_off00008cd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CD7 3400 bytes
SHA-256: 75c3a8e6f5c68e0746f893c922e57fd7e888a21fb038f9ae3eedb0a197a59e24
font_02_sfnt_off000097fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97FB 18696 bytes
SHA-256: 8be69e5611b2f1b9a2f3a77307bfff4bdbd54e1b1e6fe005490b405b0e560c9f

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