Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad3d757a6bc7eddf…

MALICIOUS

PDF

46.3 KB Created: 2021-06-03 13:18:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 0bab71700aa64929f37bb44d28c3fc6f SHA-1: 52f75436701b0e4be1c00d969e9aefef1a528a8d SHA-256: ad3d757a6bc7eddf682b97cc5169478472f4e79d910fd8b93728da8acd4f7ea0
82 Risk Score

Malware Insights

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

The document exhibits characteristics of an advance-fee scam, using lures related to 'Robux Hack' and prize notifications to entice users. It contains multiple embedded URLs pointing to potentially malicious content, including one directly related to the 'Robux Hack' theme. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

Heuristics 4

  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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/431946152/robux-hack-free-robux-game-hack
    • http://perpustakaan.dutadharma.ac.id/repository/minecraft-java-free-download_GM479516143.pdf
    • http://perpustakaan.dutadharma.ac.id/repository/coin-master-free-spins-link-today_GM406889139.pdf
    • http://perpustakaan.dutadharma.ac.id/repository/coin-master-online-hack-no-survey-no-password_GM406889139.pdf
    • http://perpustakaan.dutadharma.ac.id/repository/free-spins-and-coins-coin-master-links_GM406889139.pdf
    • http://perpustakaan.dutadharma.ac.id/repository/promo-code-free-robux_GM431946152.pdf
    • http://perpustakaan.dutadharma.ac.id/repository/roblox-piano-hack_GM431946152.pdf
    • http://perpustakaan.dutadharma.ac.id/repository/coin-master-twitter-free-spins_GM406889139.pdf
    • http://perpustakaan.dutadharma.ac.id/repository/get-free-robux-without-human-verification_GM431946152.pdf
    • http://perpustakaan.dutadharma.ac.id/repository/abd-roblox_GM431946152.pdf
    • http://perpustakaan.dutadharma.ac.id/repository/roblox-hacked-version-download_GM431946152.pdf
    • http://perpustakaan.dutadharma.ac.id/repository/coin-master-hack-2021-iphone_GM406889139.pdf
    • http://perpustakaan.dutadharma.ac.id/repository/free-spin-link-in-coin-master_GM406889139.pdf
    • http://perpustakaan.dutadharma.ac.id/repository/minecraft-app-free-download_GM479516143.pdf
    • http://perpustakaan.dutadharma.ac.id/repository/my-roblox-account-was-hacked_GM431946152.pdf
    • http://perpustakaan.dutadharma.ac.id/repository/coin-master-free-coins-and-spins-link-today_GM406889139.pdf
    • http://perpustakaan.dutadharma.ac.id/repository/how-to-hack-roblox-accounts-2021_GM431946152.pdf
    • http://perpustakaan.dutadharma.ac.id/repository/coin-master-free_GM406889139.pdf
    • http://perpustakaan.dutadharma.ac.id/repository/get-free-spins-coin-master-link_GM406889139.pdf
    • http://perpustakaan.dutadharma.ac.id/repository/coin-master-free-spins-link-2021-april_GM406889139.pdf
    • http://perpustakaan.dutadharma.ac.id/repository/is-minecraft-java-free_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000532c.bin
6c38f616391653d8d202b0044ce7fa59617eff0c78eb5a4ccf7d506ea7bf89b0		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x532C 27968 bytes
font_01_sfnt_off0000922e.bin
e7ad190f023b5a59f82d5d2304e728b1fb84096fbbeb22520bbc212286f43b51		 pdf-font-stream PDF embedded font (sfnt) at offset 0x922E 18412 bytes

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