Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f4ceae11c0ad2d7…

MALICIOUS

PDF

42.0 KB Created: 2021-05-13 11:19:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: ddc46f7c875281f2c720c95c8a201fdb SHA-1: f3d1f49163553fdb9f55cc632ff34b248dab49ee SHA-256: 7f4ceae11c0ad2d72bbd1f4aa188fe3b9664f713155c87990a1904095db3fea9
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The document contains a lure for a game hack, directing users to a URL and instructing them to execute commands via copy-pasting into a shell. This indicates an attempt to trick the user into downloading and executing malicious content, likely a second-stage payload. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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-java-edition-free-trial-game-hack
    • http://ce-tsv-nantes.fr/images/what-are-points-for-in-roblox_GM431946152.pdf
    • http://ce-tsv-nantes.fr/images/toolbox-for-minecraft-ios_GM479516143.pdf
    • http://ce-tsv-nantes.fr/images/roblox-help-free-robux_GM431946152.pdf
    • http://ce-tsv-nantes.fr/images/wwwhaktutsin-2021-08-coinmasterfreespinandcoinlinkhtml-m-1_GM406889139.pdf
    • http://ce-tsv-nantes.fr/images/roblox-hack-download-pc_GM431946152.pdf
    • http://ce-tsv-nantes.fr/images/how-to-hack-coin-master-root_GM406889139.pdf
    • http://ce-tsv-nantes.fr/images/how-to-hack-minecraft_GM479516143.pdf
    • http://ce-tsv-nantes.fr/images/coin-master-card-link-free_GM406889139.pdf
    • http://ce-tsv-nantes.fr/images/free-robux-hack-no-human-verification_GM431946152.pdf
    • http://ce-tsv-nantes.fr/images/was-minecraft-ever-free_GM479516143.pdf
    • http://ce-tsv-nantes.fr/images/easy-how-to-get-free-robux_GM431946152.pdf
    • http://ce-tsv-nantes.fr/images/coin-master-hack-iosgods_GM406889139.pdf
    • http://ce-tsv-nantes.fr/images/roblox-hacks-2021_GM431946152.pdf
    • http://ce-tsv-nantes.fr/images/25-free-spins-coin-master_GM406889139.pdf
    • http://ce-tsv-nantes.fr/images/minecraft-pe-free-ios_GM479516143.pdf
    • http://ce-tsv-nantes.fr/images/coin-master-rewards-free-spins_GM406889139.pdf
    • http://ce-tsv-nantes.fr/images/collect-robux_GM431946152.pdf
    • http://ce-tsv-nantes.fr/images/roblox-free-robux-codes_GM431946152.pdf
    • http://ce-tsv-nantes.fr/images/coin-master-gifts_GM406889139.pdf
    • http://ce-tsv-nantes.fr/images/how-to-hack-roblox-on-mobile_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004816.bin
41025362c47b94e463e198fb43117f147fca06a9aaa4f5a278507ffa5cd0fe1a		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4816 25224 bytes
font_01_sfnt_off000081cd.bin
1be29b22a500e2a60a7236cc7f3818504a778037c129f908a3826a58d12b939a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81CD 18240 bytes

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