Malicious PDF — malware analysis report

Static analysis result for SHA-256 e563dd95c23eadeb…

MALICIOUS

PDF

43.7 KB Created: 2021-05-16 13:20:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: b35046077603bb03e93d4c056be6e346 SHA-1: c32faeb5249b5af5cdc6484de1ef20802cbe1b59 SHA-256: e563dd95c23eadeb22a97f7f525e039dff56c10c6e58eb5880c6f7dcf422a19d
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of external links, many of which point to sites offering 'robux generators' or 'coin master hacks'. The document also displays a fake CAPTCHA, a common lure to trick users into interacting with malicious content. The primary URL, https://netcdn.xyz/app/431946152/robux-generator-game-hack, is likely the initial destination for a scam or malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/robux-generator-game-hack
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/get-free-cards-coin-master_GM406889139.pdf
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/how-do-you-get-free-roblox_GM431946152.pdf
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/free-minecraft-website_GM479516143.pdf
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/coin-master-hack-apk-app_GM406889139.pdf
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/coin-master-links-to-free-spins_GM406889139.pdf
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/is-there-a-way-to-get-free-robux_GM431946152.pdf
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/coin-master-heaven-free-spins-today_GM406889139.pdf
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/roblox-free-followers_GM431946152.pdf
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/coin-master-hack-to-get-free-spins_GM406889139.pdf
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/free-coins-coin-master-link_GM406889139.pdf
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/daily-free-spin-coin-master-link_GM406889139.pdf
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/www-roblox-com-robux-free_GM431946152.pdf
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/minecraft-java-hacks_GM479516143.pdf
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/coin-master-free-coins-links-2021_GM406889139.pdf
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/how-to-hack-in-roblox-prison-life_GM431946152.pdf
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/gamehunters-coin-master_GM406889139.pdf
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/coin-master-cheats-2021_GM406889139.pdf
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/free-robux-generator-no-verification-2021_GM431946152.pdf
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/free-robux-2021-no-verification_GM431946152.pdf
    • https://www.goldeneye-group.com/uploaded_files/userfiles/files/how-to-get-free-cards-in-coin-master_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004af2.bin
f0ba3d8bfd7a5ee4f5e6545e1a5d5debb063554e3e37a655fe7c50a0a4b27f40		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4AF2 26380 bytes
font_01_sfnt_off000088a9.bin
6ad13131c8a801fdee9b2b1f688ac66371065e9680419547ef4f25df18f73033		 pdf-font-stream PDF embedded font (sfnt) at offset 0x88A9 18184 bytes

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