Malicious PDF — malware analysis report

Static analysis result for SHA-256 400ec223d84c035a…

MALICIOUS

PDF

35.7 KB Created: 2021-06-19 18:22:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 4fd7cb4a8cba4d45f8a598c0b943d1de SHA-1: 9ac6f3501a59019d94818b96f3f57a80bd248f28 SHA-256: 400ec223d84c035aba7ac0e2fc13d93b6e17120f742b83fbce0a945d809f3f0d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks and free currency, directing users to a suspicious URL. This suggests a phishing or scam attempt designed to trick users into visiting a potentially malicious site. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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.co/app/431946152/can-you-use-cheat-engine-on-roblox-to-get-robux-game-hack PDF link annotation
    • https://digilib.stieama.ac.id/repository/hack-on-roblox-to-get-money-for-blox-burg_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-hack-android-no-root_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/orewards-com-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-hack-coin-master-apkmody_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-spins-coin-master-generator_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/best-free-games-to-play-on-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-pastebin-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-free-bc-v3rm_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/working-method-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-free-catalog-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-script-executor-level-7-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/toolbox-mod_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-32-mod-hack-apk-download_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/robux-without-verification_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-can-i-get-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003228.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3228 23036 bytes
SHA-256: dab6106c442101822b3bf8abdfcee518477e8c14eea94eeda5c9bba267d1c417
font_01_sfnt_off0000662b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x662B 19180 bytes
SHA-256: 2ea19ac4f793e651e6166b996bfd5c07cd9213b08752408f507384791648aaee

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