Malicious PDF — malware analysis report

Static analysis result for SHA-256 7654b46403899a1d…

MALICIOUS

PDF

34.1 KB Created: 2021-06-25 21:10:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 8b00206ca316c12bb81ace190f5c64ee SHA-1: fe81af848bea0b7ee3b2c8f1480ecb8a6f650147 SHA-256: 7654b46403899a1def4409165ed1512a8f135606639860f0932bac98fa05ac2d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell T1203 Exploitation for Client Execution

The PDF document contains lures related to obtaining 'Robux' and includes a high-confidence ML classifier firing indicating maliciousness. It also explicitly instructs the user to copy and paste content into a command execution context, suggesting an attempt to trick the user into running malicious commands. The embedded URL likely points to a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/how-to-get-robux-fast-no-hack-game-hack
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-roblox-hack_GM431946152.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/dayz-roblox-item-hack_GM431946152.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/roblox-how-to-noclip-cheat-engine-feb-2021-mac-apple_GM431946152.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/roblox-tuxedo-free_GM431946152.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/free-20210-robux-download_GM431946152.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/free-robux-codes-deutsch_GM431946152.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/wwwhacks-for-roblox_GM431946152.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/emotes-roblox-free_GM431946152.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/get-robux-for-free-with-out-choice-of-getting-extra_GM431946152.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/roblox-exploits-hacks-arsenal_GM431946152.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/make-free-robux_GM431946152.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/how-to-actually-fly-hack-n-roblox-fe2_GM431946152.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/cheat-code-for-roblox-theme-park_GM431946152.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/free-robux-obby-link-in-august-2021_GM431946152.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-phone_GM479516143.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/coin-master-free-cards-link_GM406889139.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/free-minecraft-server-hosting_GM479516143.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/roblox-robux-hack_GM431946152.pdf
    • https://elearning.min2kediri.sch.id/__statics/gudangsoal/files/hack-jailbreak-roblox-police_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f50.bin
9df40d8114f48afd3007417b60d6d8a7ea7c2cb273fe133c68d1708e2d0e7b81		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F50 22088 bytes
font_01_sfnt_off00005ff9.bin
93ae1b6b79b7e7c42c441396939365639d438373d38ba697b103c804489e2d6c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF9 19152 bytes

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