Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fe049f90f79fba6…

MALICIOUS

PDF

46.7 KB Created: 2021-06-11 06:19:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: ed66be8caf0d3f39a6cb01523a458961 SHA-1: 16dbbf9a7a4928b0d2933f9bc7055275c1594b60 SHA-256: 2fe049f90f79fba67aba12063e07e4934c896988337194f849d2ae091d401fb8
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a high-severity heuristic indicating it links to a game hack redirector, specifically pointing to the URL https://netcdn.tw/app/431946152/cheat-roblox-abeille-game-hack. This lure is designed to trick users into visiting a potentially malicious site. Although no scripts were extracted, the PDF structure and embedded URI strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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 https://netcdn.tw/app/431946152/cheat-roblox-abeille-game-hack PDF link annotation
    • http://library.stembi.ac.id/repository/roblox-hack-ga_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/roblox-how-to-get-free-items-hack_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/free-robux-so-sick-free_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/roblox-cheat-codes-pc_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/best-free-minecraft-servers_GM479516143.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/get-minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/hacks-para-boku-no-roblox-remastered_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/roblox-hack-inspect-element_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/roblox-studio-free-download-pc_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/how-to-get-free-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/how-to-avoid-hacking-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/minecraft-free-online-games_GM479516143.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/roblox-prison-life-btools-hack-download_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/roblox-x-ray-hack_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/minecraft-gun-games-free_GM479516143.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/minecraft-free-app_GM479516143.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/invisible-hack-roblox-2021_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
stream_004_off000052be.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52BE 28472 bytes
SHA-256: d66b948b626f287e4ce87b6d25e827ce14fcc897da119168302903334fc83830
font_01_sfnt_off00009397.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9397 18404 bytes
SHA-256: 823ec3b3a336a43b32b2c2db5058d28a4ebf59a9b117ef8578ecaa7ce8fc1f4f

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