Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce41503ceda6160d…

MALICIOUS

PDF

42.2 KB Created: 2021-05-17 06:48:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 635c69c78c66a0793857a12cfa1794a9 SHA-1: b70f7c3363614d434659688ab169407bcb8ac61d SHA-256: ce41503ceda6160de14519618ea80c7e44d574758feb5ba54012c541efcde56e
82 Risk Score

Malware Insights

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

The document presents itself as a game hack, likely to entice users to download a malicious payload from the embedded URL. The heuristic 'SE_CLIPBOARD_COMMAND_LURE' indicates the document instructs the user to execute commands via the clipboard, suggesting a secondary stage download or execution. The ML classifier strongly flags 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-1.15-2-hacks-game-hack
    • https://vtvvaals.nl/images/roblox-data-breach_GM431946152.pdf
    • https://vtvvaals.nl/images/unlimited-spin-coin-master-hack_GM406889139.pdf
    • https://vtvvaals.nl/images/free-400-spins-coin-master_GM406889139.pdf
    • https://vtvvaals.nl/images/free-links-coin-master_GM406889139.pdf
    • https://vtvvaals.nl/images/coin-master-hack-co_GM406889139.pdf
    • https://vtvvaals.nl/images/wizard-hacks_GM479516143.pdf
    • https://vtvvaals.nl/images/free-roblox-accounts-with-robux-2021_GM431946152.pdf
    • https://vtvvaals.nl/images/free-promo-codes-for-coin-master_GM406889139.pdf
    • https://vtvvaals.nl/images/free-spins-for-coin-master_GM406889139.pdf
    • https://vtvvaals.nl/images/coin-master-hack-tool_GM406889139.pdf
    • https://vtvvaals.nl/images/coin-master-hack-apk_GM406889139.pdf
    • https://vtvvaals.nl/images/free-robux-without-doing-anything_GM431946152.pdf
    • https://vtvvaals.nl/images/hack-mod-coin-master_GM406889139.pdf
    • https://vtvvaals.nl/images/coin-master-stop-attack-hack_GM406889139.pdf
    • https://vtvvaals.nl/images/send-me-500-2021-spins_GM406889139.pdf
    • https://vtvvaals.nl/images/roblox-apk-hack_GM431946152.pdf
    • https://vtvvaals.nl/images/coin-master-free-spins-and-coins-blogspot_GM406889139.pdf
    • https://vtvvaals.nl/images/free-robux-wheel_GM431946152.pdf
    • https://vtvvaals.nl/images/how-do-i-get-free-coins-on-coin-master_GM406889139.pdf
    • https://vtvvaals.nl/images/how-to-make-a-roblox-group-for-free_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000049f4.bin
78fbb470fe370730d0a555cb663866f1bb1a01d25dfc4aca8a6a4f5ff38d3f8b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49F4 24840 bytes
font_01_sfnt_off000082d8.bin
db08b96da71f6ddfbe6b519ed50ce659f2c78f4173f4a3128d613ddf1b801d62		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82D8 18168 bytes

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