Malicious PDF — malware analysis report

Static analysis result for SHA-256 16a5fdc3396aef36…

MALICIOUS

PDF

37.0 KB Created: 2021-05-24 11:02:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 3b7e03e1dbc352a98d3e6a235efec018 SHA-1: 6a1eaa3aa161304c6c74059c06cd7426c8681d86 SHA-256: 16a5fdc3396aef36660d34efe0ade23cd0d7d4a3b8b7451521c7c13b30466aed
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to websites offering game hacks or generators, such as 'free robux'. The document body explicitly mentions 'Minecraft Bedrock Edition Pc Download Free' and includes a call to action to access a 'MINECRAFT GENERATOR'. This indicates a social engineering tactic to trick users into visiting potentially malicious sites. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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-bedrock-edition-pc-download-free-game-hack PDF link annotation
    • http://elib.acls-indonesia.com/repository/get-me-robux_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/free-robux-generator_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/www-roblox-com-robux_GM431946152.pdfIn PDF document text
    • http://elib.acls-indonesia.com/repository/free-robux-mod_GM431946152.pdfIn PDF document text
    • https://education.minecraftIn 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_002_off0000352e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x352E 24764 bytes
SHA-256: 0ac8432461ee635d188f249e7cba07b1f633c28a616055d99300222495f93256
font_01_sfnt_off00006daf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DAF 18828 bytes
SHA-256: bab883dfc84e1a3f345dfae0998a7e69f5c6c1aec602e5a20de586714fc0e9f0

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