Malicious PDF — malware analysis report

Static analysis result for SHA-256 f66328977dcaee96…

MALICIOUS

PDF

47.4 KB Created: 2021-06-03 08:51:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: fbb3d5e35edd04e24a16606404d9b5d1 SHA-1: 275e1a2097872d54b3ce4f45afdbf0b6d62ee3e1 SHA-256: f66328977dcaee9641eb9a8969e22d691bcd813e0e337503fb9db0de0a748498
62 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs and a heuristic firing for a malicious PDF, indicating it is designed to redirect users to external sites. The document body and extracted URLs suggest a lure for game-related cheats or hacks, likely to distribute malware or engage in phishing. The presence of a raw IP address in one of the URIs further increases the suspicion of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

Heuristics 4

  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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.online/app/431946152/roblox-free-button-game-hack
    • http://183.91.70.7/repository/coin-master-hack-2021-free_GM406889139.pdf
    • http://183.91.70.7//repository/bux-life-free-robux_GM431946152.pdf
    • http://183.91.70.7//repository/coin-master-cheat-codes_GM406889139.pdf
    • http://183.91.70.7/repository/free-robux-generator-for-kids_GM431946152.pdf
    • http://183.91.70.7//repository/how-to-get-free-minecoins-in-minecraft_GM479516143.pdf
    • http://183.91.70.7/repository/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdf
    • http://183.91.70.7//repository/how-to-change-your-roblox-username-for-free_GM431946152.pdf
    • http://183.91.70.7/repository/coin-master-free-spins-hack-2021_GM406889139.pdf
    • http://183.91.70.7/repository/how-can-i-get-robux_GM431946152.pdf
    • http://183.91.70.7//repository/claimrbx-free-robux_GM431946152.pdf
    • http://183.91.70.7//repository/how-to-earn-robux-by-playing-games_GM431946152.pdf
    • http://183.91.70.7//repository/roblox36com-free-robux_GM431946152.pdf
    • http://183.91.70.7//repository/fb-coin-master-hack_GM406889139.pdf
    • http://183.91.70.7/repository/minecraft-fly-hack_GM479516143.pdf
    • http://183.91.70.7/repository/free-roblox-promo-codes-for-robux_GM431946152.pdf
    • http://183.91.70.7//repository/coinmaster-spins_GM406889139.pdf
    • http://183.91.70.7/repository/how-to-hack-a-minecraft-server_GM479516143.pdf
    • http://183.91.70.7//repository/free-coins-and-spins-2021_GM406889139.pdf
    • http://183.91.70.7/repository/tiktok-minecraft-hacks_GM479516143.pdf
    • http://183.91.70.7/repository/free-robux-live_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004fe7.bin
395075919ea1428b4ddfb8ce889828ed80c8a001e54ef220e0b4cae5f19c856c
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FE7 26740 bytes
font_01_sfnt_off00008d02.bin
b053084cafd01c649462d87667ba56c569d6480ce60e7d20ae57ef6124cf178e
pdf-font-stream PDF embedded font (sfnt) at offset 0x8D02 2880 bytes
font_02_sfnt_off000096ec.bin
7096edb522629c60e3e310bdcd92b060677a94bffcde384ad8a6ebc547411d9e
pdf-font-stream PDF embedded font (sfnt) at offset 0x96EC 18192 bytes