Malicious PDF — malware analysis report

Static analysis result for SHA-256 d76c3f88b7dcc8a1…

MALICIOUS

PDF

44.3 KB Created: 2021-06-03 10:51:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 7a69951dce9f5a3986fd5aec946b99f7 SHA-1: e7af9ac892ee50af2508190f7b465c21eafbc052 SHA-256: d76c3f88b7dcc8a17d37025ac25edcd070bc59866897119529450c700d056a9a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure promising free in-game currency, directing users to a URL associated with game hacks. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or scam attempt designed to trick users into visiting malicious sites. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/406889139/free-coins-coin-master-today-game-hack PDF link annotation
    • https://ifef.es/ckfinder/userfiles/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/hack-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/minecraft-rtx-download-free_GM479516143.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/free-game-pack-with-google-play-coin-master_GM406889139.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/is-windows-10-minecraft-free_GM479516143.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/free-girl-hair-roblox_GM431946152.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/coin-master-free-spin-link-list_GM406889139.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/minecraft-games-free-download_GM479516143.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/202100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/coin-master-download-hack_GM406889139.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/coin-master-hack-tips_GM406889139.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/coin-master-hack-using-cheat-engine_GM406889139.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/free-spins-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/how-to-get-minecraft-for-free-on-iphone-2021_GM479516143.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/150-free-spins-coin-master_GM406889139.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_off00005255.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5255 25456 bytes
SHA-256: 27105674cd844ed0739373cae5f69982374c5a1142f8c57a4993ab663b252223
font_01_sfnt_off00008b4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B4A 18064 bytes
SHA-256: 85a7a6543eb7f59a149e6876aabd32521cb1fc93bcbc39754761d1a657ff29d4

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