Malicious PDF — malware analysis report

Static analysis result for SHA-256 079740645a9337a4…

MALICIOUS

PDF

45.5 KB Created: 2021-06-11 04:21:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 7344a84bdd52d43c52da8264d8bb623d SHA-1: b13fea8152599fdf9714f9668307850b796349a1 SHA-256: 079740645a9337a4f214b6ed3f5114ddd5314aad4551aa62b758998d03843260
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document uses social engineering lures, including a fake download button and instructions to copy commands into a terminal, to trick users into executing malicious content. The primary URL points to a game hack generator, suggesting a lure for potentially unwanted software or further malicious downloads. No scripts were extracted, but the heuristics indicate a strong intent to deceive the user into performing an action that could lead to compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

Heuristics 6

  • 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.
  • 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
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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.tw/app/431946152/boku-no-roblox-remastered-hack-script-game-hack PDF link annotation
    • http://library.yamasi.ac.id/repository/free-robux-2021-no-human-verification-pc_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/omplete-surveys-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/minecraft-dungeons-free-download-pc_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/minecraft-java-edition-free-download_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/no-verification-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/mine-minecraft-games-for-free_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-master-hack-version-2021_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/speed-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-master-free-spins-twitter_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/how-to-get-free-roebucks_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-roblox-pin-generator_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/how-to-get-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/114-hacks_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/free-robux-today_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-daily-bonus_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-minecraft-bedrock-server_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/moonactive-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-hack-download-no-human-verification_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000052da.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52DA 25024 bytes
SHA-256: 8090d06b5053c3b132916a049e957ad2024621d64ce42a1b58d2902401bd97e5
font_01_sfnt_off00008cd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CD1 19156 bytes
SHA-256: 451c7cc0023a27aef0be2d5218adb9ffb703fb6d60d13c758bc4f09986d036af

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