Malicious PDF — malware analysis report

Static analysis result for SHA-256 70d36537f8968f06…

MALICIOUS

PDF

41.3 KB Created: 2021-05-21 15:00:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: b540f138d22612e81b47122ac3045fc5 SHA-1: 6c7b40ed0c98157bd5ad2277871ec228a4be6681 SHA-256: 70d36537f8968f06f10432bf7f944daa1877417f67377b4a7bf1b20f24d73498
82 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs, with a primary focus on luring users with "free generator / game hack" themes for popular games like Minecraft and Roblox. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates a malicious intent to redirect users to potentially harmful sites. The ML classifier also flagged the PDF as malicious. The document's purpose appears to be social engineering users into downloading further malware or visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8315

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.xyz/app/479516143/minecraft-sign-up-free-game-hack PDF link annotation
    • http://cmme.it/images/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • http://cmme.it/images/coin-master-free-spins-and-free-coins_GM406889139.pdfIn PDF document text
    • http://cmme.it/images/100-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://cmme.it/images/coin-master-free-spins-links-app_GM406889139.pdfIn PDF document text
    • http://cmme.it/images/roblox-apocalypse-rising-hack_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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000032bb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32BB 24648 bytes
SHA-256: a8c91b00d95db053ff470b7223e446955f83c8a25a93b80d9b2869ce0d03299c
font_01_sfnt_off00006b55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B55 3020 bytes
SHA-256: f1a29adcea636583330be8db4f6466410de551ac48576b9e1aa5c34e2d665a1f
font_02_sfnt_off000075a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75A9 2816 bytes
SHA-256: 4555740682277f0055d57b15bd0ba953e5b51415ea3d21c93db391eace072d4f
font_03_sfnt_off00007fb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FB9 18220 bytes
SHA-256: 6236314a17f57ecfc4f63da4a6b9cb2d9143cd94f6dcae1b1ce204d4da3deb21

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