Malicious PDF — malware analysis report

Static analysis result for SHA-256 c272ffa6a4a92d72…

MALICIOUS

PDF

51.2 KB Created: 2021-05-31 06:05:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: d22347a3012bfba09a29ab43e89178e7 SHA-1: 50347db56e631efa5d89693570b7d9c32f76a6cd SHA-256: c272ffa6a4a92d729355b87b08cec34a2fad1b76da5142d5fcb775a1d368b5d9
82 Risk Score

Malware Insights

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

This PDF document is identified as malicious by an ML classifier and exhibits social engineering tactics. It attempts to trick users into downloading a file by posing as a free game hack, and explicitly instructs the user to execute commands via Win+R or a terminal, which is a common ClickFix attack vector. The document contains numerous embedded URLs pointing to various game-related download lures, suggesting a downloader or exploit distribution mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8290

Heuristics 4

  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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-pocket-edition-free-game-hack PDF link annotation
    • https://mdesigns.sa/wp-content/uploads/fsqm-files/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • https://mdesigns.sa/wp-content/uploads/fsqm-files/robux-free-co_GM431946152.pdfIn PDF document text
    • https://mdesigns.sa/wp-content/uploads/fsqm-files/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://mdesigns.sa/wp-content/uploads/fsqm-files/try-minecraft-free_GM479516143.pdfIn PDF document text
    • https://mdesigns.sa/wp-content/uploads/fsqm-files/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • https://mdesigns.sa/wp-content/uploads/fsqm-files/minecraft-mobile-free_GM479516143.pdfIn PDF document text
    • https://mdesigns.sa/wp-content/uploads/fsqm-files/free-modded-minecraft-server_GM479516143.pdfIn PDF document text
    • https://mdesigns.sa/wp-content/uploads/fsqm-files/www-free-robux_GM431946152.pdfIn PDF document text
    • https://mdesigns.sa/wp-content/uploads/fsqm-files/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • https://mdesigns.sa/wp-content/uploads/fsqm-files/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
    • https://mdesigns.sa/wp-content/uploads/fsqm-files/free-robux-kid-friendly-no-human-verification_GM431946152.pdfIn PDF document text
    • https://mdesigns.sa/wp-content/uploads/fsqm-files/how-to-free-robux_GM431946152.pdfIn PDF document text
    • https://mdesigns.sa/wp-content/uploads/fsqm-files/minecraft-bedrock-free-with-java_GM479516143.pdfIn PDF document text
    • https://mdesigns.sa/wp-content/uploads/fsqm-files/minecraft-bedrock-edition-download-pc-free_GM479516143.pdfIn PDF document text
    • https://mdesigns.sa/wp-content/uploads/fsqm-files/free-tiktok-likes-no-survey_GM835599320.pdfIn PDF document text
    • https://mdesigns.sa/wp-content/uploads/fsqm-files/is-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • https://mdesigns.sa/wp-content/uploads/fsqm-files/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • https://mdesigns.sa/wp-content/uploads/fsqm-files/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • https://mdesigns.sa/wp-content/uploads/fsqm-files/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://mdesigns.sa/wp-content/uploads/fsqm-files/minecraft-games-to-play-for-free_GM479516143.pdfIn PDF document text
    • https://mdesigns.sa/wp-content/uploads/fsqm-files/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
    • https://mdesigns.sa/wp-content/uploads/fsqm-files/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • https://mdesigns.sa/wp-content/uploads/fsqm-files/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • https://mdesigns.sa/wp-content/uploads/fsqm-files/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • https://mdesigns.sa/wp-content/uploads/fsqm-files/free-tiktok-followers-instantly_GM835599320.pdfIn PDF document text
    • https://mdesigns.sa/wp-content/uploads/fsqm-files/real-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://mdesigns.sa/wp-content/uploads/fsqm-files/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • https://mdesigns.sa/wp-content/uploads/fsqm-files/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://mdesigns.sa/wp-content/uploads/fsqm-files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://mdesigns.sa/wp-content/uploads/fsqm-files/how-to-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • https://education.minecraftIn 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_003_off00005834.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5834 30480 bytes
SHA-256: 53144f05f09af1c19c35a121f676d85400004124be4a8c4991c315e068f3c0f6
font_01_sfnt_off00009bca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BCA 2892 bytes
SHA-256: c2578a292634a901613c1dd9f9883dd4930e6811e59ae03d696f263e56ea17b4
font_02_sfnt_off0000a5b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA5B4 18208 bytes
SHA-256: 2ed6c6c26b313aca39a14255061e0cb7ebbe0fc3f7500b174c0a7a92c92a7b7b

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