Malicious PDF — malware analysis report

Static analysis result for SHA-256 5edd1c430bb3b7cd…

MALICIOUS

PDF

41.6 KB Created: 2021-05-16 13:33:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 447eec95402d4a87152ea4620042cd94 SHA-1: 72821866d6b7eb4e6ce2c5ba61b80d745df79cef SHA-256: 5edd1c430bb3b7cd89e8d40037ea6e66b054a01f4f37a8119f7744b4370b7c1f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document uses a lure related to free game downloads, specifically Minecraft and Roblox, to trick users into clicking embedded links. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' suggests that the document may be instructing users to open a password-protected archive, a common tactic to bypass security filters. The presence of external URIs and the ML classifier's high confidence score indicate a malicious intent to deliver a payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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-game-hack
    • http://steklofara.com.ua/images/get-robux-for-free-2021_GM431946152.pdf
    • http://steklofara.com.ua/images/how-to-really-hack-coin-master_GM406889139.pdf
    • http://steklofara.com.ua/images/coin-master-spin-link-2021_GM406889139.pdf
    • http://steklofara.com.ua/images/how-to-get-minecraft-java-edition-for-free_GM479516143.pdf
    • http://steklofara.com.ua/images/coin-master-hack-cydia_GM406889139.pdf
    • http://steklofara.com.ua/images/coin-master-stop-attack-hack_GM406889139.pdf
    • http://steklofara.com.ua/images/coin-master-hacks-reddit_GM406889139.pdf
    • http://steklofara.com.ua/images/roblox-avatar-tester_GM431946152.pdf
    • http://steklofara.com.ua/images/roblox-free-exploits_GM431946152.pdf
    • http://steklofara.com.ua/images/free-magical-chest-coin-master_GM406889139.pdf
    • http://steklofara.com.ua/images/free-robux-cards_GM431946152.pdf
    • http://steklofara.com.ua/images/how-to-download-minecraft-for-free-on-iphone_GM479516143.pdf
    • http://steklofara.com.ua/images/coin-master-hack-2021_GM406889139.pdf
    • http://steklofara.com.ua/images/how-to-get-a-free-dominus-in-roblox_GM431946152.pdf
    • http://steklofara.com.ua/images/give-free-robux_GM431946152.pdf
    • http://steklofara.com.ua/images/coin-master-free-spins-link-whatsapp-group_GM406889139.pdf
    • http://steklofara.com.ua/images/minecraft-hack-app_GM479516143.pdf
    • http://steklofara.com.ua/images/minecraft-for-macbook-free_GM479516143.pdf
    • http://steklofara.com.ua/images/minecraft-114-download_GM479516143.pdf
    • http://steklofara.com.ua/images/is-minecraft-education-edition-free_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000497d.bin
6f5ecc07143ef1e5a590d2aa94cdaba66085b3e7d639e10d38eed522c5e034a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x497D 24304 bytes
font_01_sfnt_off000080a3.bin
e28d0ded599416f75746d42b4ddd49ac4ed584cd54835945167b34c6d366202b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80A3 18164 bytes

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