Malicious PDF — malware analysis report

Static analysis result for SHA-256 5abd11573dd8fbaf…

MALICIOUS

PDF

34.3 KB Created: 2021-07-03 14:36:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 9740a1b04be1c79e611bf509dc971705 SHA-1: 941795e139216f0c1c8f59a4deb1e6941654bd1d SHA-256: 5abd11573dd8fbaf3db50caea63a0423f432ed9966b00a3f2a4a3cef20a0619c
62 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs and a heuristic firing for PDF_URI indicating external links. The document body, though partially garbled, contains references to game hacks and free in-game items, suggesting a lure for users to download malicious content. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to trick users into downloading malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/431946152/roblox-games-com-free-game-hack
    • http://111.68.26.74/widyapustaka/repository/apk-hack-roblox_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/minecraft-aimbot_GM479516143.pdf
    • http://111.68.26.74/widyapustaka/repository/free-powergrip-gauntlet-roblox-parkour_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-robux-no-survey_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-roblox-account-information_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/roblox-vheicle-simulator-hacks_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-roblox-arsenal-hack-executor_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/how-to-make-roblox-hack_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-hacks-for-coin-master_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/get-free-minecraft-account_GM479516143.pdf
    • http://111.68.26.74/widyapustaka/repository/free-robux-android_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-robux-download_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/robux-cheats-2021_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/minecraft-pe-hacks_GM479516143.pdf
    • http://111.68.26.74/widyapustaka/repository/arsenal-hacks-roblox_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/how-do-u-get-free-robux-2021_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/how-to-hack-coin-master-without-root_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/roblox-comroblox_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/click-to-kill-roblox-hack-pastebin_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-robux-no-download-no-survey-no-verification-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ed4.bin
1c54ce461e4590c1964350fb9fd7e80d180b756a967c34d6df6769a55d031c7b
pdf-font-stream PDF embedded font (sfnt) at offset 0x2ED4 22680 bytes
font_01_sfnt_off00006192.bin
63fcf197efd0ab2731d200d540b33a8cc2102b08d529c7d5467440d1b6216513
pdf-font-stream PDF embedded font (sfnt) at offset 0x6192 18908 bytes