Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed9d58c6b15956d4…

MALICIOUS

PDF

44.6 KB Created: 2021-06-01 03:20:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 36adaa730db873b81740a9809ed8346c SHA-1: a8416908f4091ba250b09b0afca6b71f10a97841 SHA-256: ed9d58c6b15956d49134724d4f12d7a8667a20c1d84a407bf7739dc625e8cb8f
82 Risk Score

Malware Insights

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

The PDF document displays a fake CAPTCHA or human verification prompt to trick the user into clicking a link. This link, such as https://netcdn.xyz/app/431946152/how-to-hack-people-on-roblox-youtube-game-hack, likely leads to the download of a second-stage payload. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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/431946152/how-to-hack-people-on-roblox-youtube-game-hack
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/how-to-hack-other-accounts-in-roblox_GM431946152.pdf
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/minecraft-free-no-download_GM479516143.pdf
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/how-to-hack-a-roblox-account-easy_GM431946152.pdf
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/free-roblox-generator-no-survey_GM431946152.pdf
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/huskybuckscom-free-robux_GM431946152.pdf
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/roblox-tycoon-money-hack-2021_GM431946152.pdf
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/how-to-join-builders-club-for-free-robux_GM431946152.pdf
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/roblox-free-robux-hack_GM431946152.pdf
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/free-online-minecraft-server_GM479516143.pdf
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/free-robux-script_GM431946152.pdf
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/get-tiktok-followers-free_GM835599320.pdf
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/roblox-hacks-2021_GM431946152.pdf
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/how-to-get-hacks-on-minecraft_GM479516143.pdf
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/roblox-free-robux_GM431946152.pdf
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/free-robux-come_GM431946152.pdf
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/free-coins-and-spins-coin-master_GM406889139.pdf
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/hacked-roblox-account-for-sale_GM431946152.pdf
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/free-tiktok-fans-no-verification_GM835599320.pdf
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/free-disney-plus-accounts-tiktok_GM835599320.pdf
    • https://oghousesgalore.com/wp-content/uploads/fsqm-files/how-to-get-free-robux-in-roblox-2021-nick-therobloxiantv_GM431946152.pdf
    • https://www.communes.com
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000051e1.bin
1a9d22b3caff6fbc249a53d0ffc90c53a634457c4cba7c168342a3e6e9cbe7a0
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51E1 24144 bytes
font_01_sfnt_off00008930.bin
23a89c97da4c1b21561ac95c5982fe854fabf6157dde9d785c049c59fded73d9
pdf-font-stream PDF embedded font (sfnt) at offset 0x8930 19084 bytes