Malicious PDF — malware analysis report

Static analysis result for SHA-256 9490723e72f3b8a0…

MALICIOUS

PDF

41.6 KB Created: 2021-05-13 01:12:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: dbe0cd1b8b113e85f302d59dd2a0926c SHA-1: 2b1c5aa9ba214d38f5c055f4f6f7f0a9f7d18c6c SHA-256: 9490723e72f3b8a08612ad41f228bd1bbf4fbc40d268f1f09625ba852535e34f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-confidence heuristic indicating it links to a 'free generator / game hack' lure. The primary URL, https://netcdn.xyz/app/406889139/coin-master-rewards-game-hack, is embedded within the document body and is likely intended to redirect users to a malicious site. While no scripts were explicitly extracted, the nature of the lure suggests a social engineering tactic to trick users into visiting a potentially harmful resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/406889139/coin-master-rewards-game-hack PDF link annotation
    • http://tileworld.com.au/files/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://tileworld.com.au/files/www-free-robux_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/giftrobux-com-generator_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/coin-master-hack-pc-cheat-engine_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/master-coin-free-link_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/roblox-script-hack_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/how-to-get-free-robux-as-a-kid_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/roblox-avatar-editor-free_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/40-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/minecraft-toys-for-free_GM479516143.pdfIn PDF document text
    • http://tileworld.com.au/files/toolbox-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://tileworld.com.au/files/coin-master-hack-online-generator-without-human-verification_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/coin-master-free-coins-and-spins-link-today_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/free-premium-roblox_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/how-do-you-get-free-roblox-money_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_003_off000046b1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x46B1 25248 bytes
SHA-256: e8dd8cb03575ef1f06f5cbd6e48ba40dcca88236631c6c05da50787d8be1defb
font_01_sfnt_off00008143.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8143 17884 bytes
SHA-256: acbd2960432ed6aaee9cffad063da1b3d43b5b4e200ce15de4e80cb136e5b59b