Malicious PDF — malware analysis report

Static analysis result for SHA-256 07507286a3b7ec2f…

MALICIOUS

PDF

47.3 KB Created: 2021-06-02 09:36:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 34a46821614270958f7eec4797324b92 SHA-1: e751760aa13c01c0915b07cfb7636dcadc6bde45 SHA-256: 07507286a3b7ec2f2ead8c5a3821f6621ecb6295e8730c74fb2af59b78dc18d6
82 Risk Score

Malware Insights

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

The PDF document contains a fake CAPTCHA lure, designed to trick users into interacting with the document. It also embeds external URLs, one of which is associated with a game-related scam. The presence of these elements suggests an attempt to deliver a malicious payload, likely through a downloaded file initiated by the user clicking the provided link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

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-play-bloxburg-for-free-no-robux-game-hack
    • http://www.maakherumusic.net/images/coin-master-hack-tool-india_GM406889139.pdf
    • http://www.maakherumusic.net/images/how-to-download-minecraft-for-free_GM479516143.pdf
    • http://www.maakherumusic.net/images/how-to-host-a-minecraft-server-for-free_GM479516143.pdf
    • http://www.maakherumusic.net/images/roblox-18_GM431946152.pdf
    • http://www.maakherumusic.net/images/free-robux-scam_GM431946152.pdf
    • http://www.maakherumusic.net/images/haktuts-coin-master-free-spins-2021_GM406889139.pdf
    • http://www.maakherumusic.net/images/free-online-games-like-minecraft_GM479516143.pdf
    • http://www.maakherumusic.net/images/free-roblox-followers_GM431946152.pdf
    • http://www.maakherumusic.net/images/robux-hack-2021_GM431946152.pdf
    • http://www.maakherumusic.net/images/coin-master-free-coins-link-2021_GM406889139.pdf
    • http://www.maakherumusic.net/images/how-to-get-free-robux-generator_GM431946152.pdf
    • http://www.maakherumusic.net/images/cool-minecraft-hacks_GM479516143.pdf
    • http://www.maakherumusic.net/images/free-modded-minecraft-server_GM479516143.pdf
    • http://www.maakherumusic.net/images/free-robux-generator-without-verification_GM431946152.pdf
    • http://www.maakherumusic.net/images/how-to-get-free-robux-for-kids_GM431946152.pdf
    • http://www.maakherumusic.net/images/robux-hack_GM431946152.pdf
    • http://www.maakherumusic.net/images/blox-rewards_GM431946152.pdf
    • http://www.maakherumusic.net/images/game-give-free-robux_GM431946152.pdf
    • http://www.maakherumusic.net/images/free-tiktok-followers-and-likes-no-human-verification_GM835599320.pdf
    • http://www.maakherumusic.net/images/coin-master-homepage_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004fc7.bin
a1092e2f1713c7847b1953780f16198010d89354606a4cf72e2d8039cdeb4333
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FC7 25132 bytes
font_01_sfnt_off000089de.bin
96a70491b0783ad8c6fc9b11a18f021aa22c69ac41ee4499b781d16a1b99b689
pdf-font-stream PDF embedded font (sfnt) at offset 0x89DE 2820 bytes
font_02_sfnt_off0000937e.bin
cb452d5ee9b147b850f2bb705d303367d8b969de6d27009f43f46f0d00966f35
pdf-font-stream PDF embedded font (sfnt) at offset 0x937E 19100 bytes