Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d18f3debc7a9185…

MALICIOUS

PDF

47.8 KB Created: 2021-05-15 23:40:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 1ab882b2fa9abf5308cb009b4cabbe38 SHA-1: 1358074c52fe1562b8aaf26dc495019a8d93f76f SHA-256: 2d18f3debc7a9185cd5276428a9c4e13f53373955a3bdea3fe6314a2ef21d31d
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document uses a lure related to 'Coin Master' free spins and contains a critical heuristic for requesting recovery secrets, indicating a phishing or scam attempt. It embeds multiple URLs, including a primary malicious URL, which are likely used to redirect users to fraudulent sites. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

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.xyz/app/406889139/coin-master-heaven-daily-free-spins-link-today-game-hack
    • http://perpus.unik-kediri.ac.id/repository/cool-free-roblox-outfits_GM431946152.pdf
    • http://perpus.unik-kediri.ac.id/repository/coin-master-online-hack-generator_GM406889139.pdf
    • http://perpus.unik-kediri.ac.id/repository/coin-master-hack-2021_GM406889139.pdf
    • http://perpus.unik-kediri.ac.id/repository/rblx-city-free-robux_GM431946152.pdf
    • http://perpus.unik-kediri.ac.id/repository/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdf
    • http://perpus.unik-kediri.ac.id/repository/coin-master-fan_GM406889139.pdf
    • http://perpus.unik-kediri.ac.id/repository/microsoft-free-robux_GM431946152.pdf
    • http://perpus.unik-kediri.ac.id/repository/roblox-free-robux-com_GM431946152.pdf
    • http://perpus.unik-kediri.ac.id/repository/free-spin-link-for-coin-master-game_GM406889139.pdf
    • http://perpus.unik-kediri.ac.id/repository/roblox-promo-codes-free-robux_GM431946152.pdf
    • http://perpus.unik-kediri.ac.id/repository/free-spins-on-coin-master-2021-ios_GM406889139.pdf
    • http://perpus.unik-kediri.ac.id/repository/minecraft-windows-10-hack-client-2021_GM479516143.pdf
    • http://perpus.unik-kediri.ac.id/repository/is-there-a-free-version-of-minecraft_GM479516143.pdf
    • http://perpus.unik-kediri.ac.id/repository/2021-free-spins-coin-master_GM406889139.pdf
    • http://perpus.unik-kediri.ac.id/repository/minecraft-free-demo_GM479516143.pdf
    • http://perpus.unik-kediri.ac.id/repository/free-robux-without-downloading-apps_GM431946152.pdf
    • http://perpus.unik-kediri.ac.id/repository/coin-master-free-coins-today_GM406889139.pdf
    • http://perpus.unik-kediri.ac.id/repository/corn-master_GM406889139.pdf
    • http://perpus.unik-kediri.ac.id/repository/earn-free-robux-for-roblox_GM431946152.pdf
    • http://perpus.unik-kediri.ac.id/repository/coin-master-hacks-for-gold-cards_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004acc.bin
2d87602f91170bb0c9838d60dab23b9ef8c8e8518af134f62af324ef40deeedc		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4ACC 29436 bytes
font_01_sfnt_off00008d87.bin
381f6d859be141449dd645f7be1484d2a1cf49218dc471b402dae69eaa2b11d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D87 2824 bytes
font_02_sfnt_off0000972a.bin
9664e6639ec6bfb441d9a629ee391d45b0cdd58efe6a451f6054a3f4b2baebdd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x972A 18764 bytes

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