Malicious PDF — malware analysis report

Static analysis result for SHA-256 169cfb95c34c6e65…

MALICIOUS

PDF

33.8 KB Created: 2021-07-09 02:22:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: d05862b6037ac0176aa2baf59a2017cb SHA-1: 8332d70f3e4d5b0d7f0177a6cca71499b68d6ca7 SHA-256: 169cfb95c34c6e65f1d89c7044d512074cc2559b351abc6d178076002c1c636d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document uses a lure related to game hacks and free downloads, specifically mentioning Minecraft. It contains a high-confidence heuristic firing for a game hack redirect lure and embeds an external URI pointing to a suspicious domain. The document body, though partially garbled, also contains the same URL, reinforcing the malicious intent to redirect users to potentially harmful content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/479516143/minecraft-app-free-download-game-hack PDF link annotation
    • https://hotelyetihome.com/userfiles/files/in-roblox-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/is-roblox-free-on-pc_GM431946152.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/free-robux-meme_GM431946152.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/how-to-gain-more-spins-on-coin-master-for-free_GM406889139.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/coin-master-free-spins-cheat_GM406889139.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/free-spins-coin-master-links-blogger_GM406889139.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/minecraft-net-download-free_GM479516143.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/hack-someone-roblox_GM431946152.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/robux-earning-websites_GM431946152.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/coin-master-hack-account_GM406889139.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/free-links-coin-master_GM406889139.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/free-2021-roblox-codes_GM431946152.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/how-to-get-free-coins-on-tiktok_GM835599320.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/how-to-get-minecraft-on-chromebook-for-free_GM479516143.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/optifine-mcpe_GM479516143.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/free-limiteds-roblox_GM431946152.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/coin-master-hack-using-cheat-engine_GM406889139.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/minecraft-free-download-laptop_GM479516143.pdfIn PDF document text
    • https://hotelyetihome.com/userfiles/files/roblox-play-now-for-free_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FDF 21800 bytes
SHA-256: c8d660709612813fa5dc6503fe49dc615c143a9de639095f655a74750186405c
font_01_sfnt_off00005fcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FCB 18756 bytes
SHA-256: 72c54d91d5a4dc086e8c017e5e8399116108414dfe22b47c0e31188f63af6e51

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