Malicious PDF — malware analysis report

Static analysis result for SHA-256 97794889eba6f901…

MALICIOUS

PDF

46.4 KB Created: 2021-05-14 16:01:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: c50a447562899489555ef02eb553e7df SHA-1: 7ca809d0da75b034906e70ff4b716dd9dc6874a8 SHA-256: 97794889eba6f9019b83a3370319c9e8fe4039c19bb29ebd0cf91c54c5d6441b
142 Risk Score

Malware Insights

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

The PDF contains numerous external links, many of which are part of a link farm, suggesting a malicious intent to redirect users to potentially harmful websites. The document body and heuristics indicate a lure related to free in-game items (Roblox, Coin Master), combined with a 'clipboard command lure' suggesting an attempt to trick users into executing commands. While no scripts were extracted, the presence of external links and the lure tactics strongly suggest the PDF is designed to facilitate further compromise, likely through a drive-by download or phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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/roblox-promo-code-to-get-free-robux-game-hack
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/free-spin-gratis-coin-master_GM406889139.pdf
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/how-to-get-free-premium-roblox_GM431946152.pdf
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/how-to-hack-roblox-accounts-2021_GM431946152.pdf
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/coin-master-hack-tips_GM406889139.pdf
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/free-coin-master-coins_GM406889139.pdf
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/omplete-surveys-for-coin-master-free-spins_GM406889139.pdf
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/how-to-hack-coin-master-with-game-guardian_GM406889139.pdf
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/can-you-give-me-free-robux_GM431946152.pdf
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/coin-master-daily-bonus-hack_GM406889139.pdf
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/coin-master-spins-hack-iphone_GM406889139.pdf
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/coin-master-hack-apk-35-33_GM406889139.pdf
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/coin-master-hack-no-verification-2021_GM406889139.pdf
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/coin-master-free-coins_GM406889139.pdf
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/is-minecraft-bedrock-edition-free_GM479516143.pdf
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/roblox-rules_GM431946152.pdf
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/robux-scam_GM431946152.pdf
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/haktuts-coin-master-free-spin-link_GM406889139.pdf
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/como-hackear-juego-coin-master_GM406889139.pdf
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/is-minecraft-earth-free_GM479516143.pdf
    • https://padang.indahkonveksi.com/ckfinder/userfiles/files/free-robux-reddit_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004bd7.bin
fc5b06063fc7353bb8b491daffa12b29e42033fda194981f97f23db3a68d21cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4BD7 26652 bytes
font_01_sfnt_off000087c3.bin
972979c3a46100cf5f8fd289bc6fbd2496ff75fec0e3f6753648c72ec6eba714		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87C3 2820 bytes
font_02_sfnt_off00009162.bin
57e6eef1fbc3af66d8c5b48d94799429ebee4b6256a60c8d2844d61f1a05fc0c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9162 18780 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.