Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d2b50e9d14e8557…

MALICIOUS

PDF

44.0 KB Created: 2021-05-16 03:30:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 4c01bf28e1f9ea1a730afaebf07c6df1 SHA-1: 57e7e92a325a810d147658eabcdba83bbfcb3660 SHA-256: 9d2b50e9d14e85579fc51839370a7a4a33f0d649b95023a647ab27193258d5d6
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a primary external URI pointing to a site offering "minecraft-pe-hacks-game-hack". The ML classifier strongly flagged this PDF as malicious, and the presence of multiple download-lure heuristics reinforces the malicious intent. While no scripts were directly extracted, the embedded URLs suggest the document is designed to redirect users to download malicious content or visit phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

Heuristics 4

  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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/479516143/minecraft-pe-hacks-game-hack
    • http://grafi-web.be/images/best-free-coin-master-spins_GM406889139.pdf
    • http://grafi-web.be/images/hack-coin-master-using-cheat-engine_GM406889139.pdf
    • http://grafi-web.be/images/free-spin-coin-master-link-2021_GM406889139.pdf
    • http://grafi-web.be/images/coin-master-free_GM406889139.pdf
    • http://grafi-web.be/images/how-to-get-free-robux-without-doing-anything_GM431946152.pdf
    • http://grafi-web.be/images/minecraft-pe-apk_GM479516143.pdf
    • http://grafi-web.be/images/coin-master-free-cards-link-2021-today_GM406889139.pdf
    • http://grafi-web.be/images/minecraft-logo-maker-free_GM479516143.pdf
    • http://grafi-web.be/images/minecraft-games-free-to-play-online_GM479516143.pdf
    • http://grafi-web.be/images/how-to-buy-robux-for-free_GM431946152.pdf
    • http://grafi-web.be/images/free-roblox-outfits-2021_GM431946152.pdf
    • http://grafi-web.be/images/how-to-make-a-free-minecraft-account_GM479516143.pdf
    • http://grafi-web.be/images/easy-robux-generator_GM431946152.pdf
    • http://grafi-web.be/images/free-coins-coin-master_GM406889139.pdf
    • http://grafi-web.be/images/free-coins-coin-master-today_GM406889139.pdf
    • http://grafi-web.be/images/free-robux-websites-2021_GM431946152.pdf
    • http://grafi-web.be/images/minecraft-bedrock-edition-free-with-java_GM479516143.pdf
    • http://grafi-web.be/images/how-to-hack-roblox-accounts-for-robux_GM431946152.pdf
    • http://grafi-web.be/images/roblox-free-hats_GM431946152.pdf
    • http://grafi-web.be/images/get-free-robux-without-human-verification_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000483e.bin
002b5fa0941304440dd7370fe154157157a7cbd13cbe769c7b6440ae91a9296e		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x483E 24468 bytes
font_01_sfnt_off00007fee.bin
a6e788324e29c53a6b164e044da2f881a9f127a1c666336aad4ab55beff5e386		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FEE 3132 bytes
font_02_sfnt_off00008ac5.bin
fda2b16deba9a1c4b3626a8ad3479d009d1f56903d8778c05817a0c1608b8b5f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8AC5 17892 bytes

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