Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1e455943cdfe642…

MALICIOUS

PDF

47.8 KB Created: 2021-06-03 11:46:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 2eb89e7913fcb979df94bc01f97711ce SHA-1: 4b9ad770bab5af3a566e4010f8f9e887711286b7 SHA-256: d1e455943cdfe6425de0fc107d2070917c65b6dc76a9f1754c251c7a7bb13e7e
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous embedded links, many of which are part of a link farm designed to attract users searching for game cheats and free in-game currency. The primary URL, 'https://netcdn.online/app/479516143/minecraft-game-hack', suggests a download lure for game-related exploits. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is intended to distribute malware or lead users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/479516143/minecraft-game-hack
    • http://pustaka-smpn3tpi.com//repository/pig-master-free-coins-and-spins_GM406889139.pdf
    • http://pustaka-smpn3tpi.com//repository/how-to-hack-coin-master_GM406889139.pdf
    • http://pustaka-smpn3tpi.com//repository/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdf
    • http://pustaka-smpn3tpi.com/repository/coin-master-hack-no-human-verification-2021_GM406889139.pdf
    • http://pustaka-smpn3tpi.com/repository/how-do-you-get-free-roblox-money_GM431946152.pdf
    • http://pustaka-smpn3tpi.com//repository/how-to-hack-coin-master-game-without-root_GM406889139.pdf
    • http://pustaka-smpn3tpi.com//repository/spin-free-coin-master_GM406889139.pdf
    • http://pustaka-smpn3tpi.com/repository/free-roblox-shirts-templates_GM431946152.pdf
    • http://pustaka-smpn3tpi.com//repository/how-to-get-free-robux-on-roblox_GM431946152.pdf
    • http://pustaka-smpn3tpi.com//repository/coin-master-free_GM406889139.pdf
    • http://pustaka-smpn3tpi.com//repository/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdf
    • http://pustaka-smpn3tpi.com//repository/minecraft-rtx-download-free_GM479516143.pdf
    • http://pustaka-smpn3tpi.com/repository/how-to-get-a-refund-on-roblox-2021_GM431946152.pdf
    • http://pustaka-smpn3tpi.com/repository/roblox-free-robux-no-verification_GM431946152.pdf
    • http://pustaka-smpn3tpi.com/repository/hack-robux_GM431946152.pdf
    • http://pustaka-smpn3tpi.com//repository/minecraft-ps4-code-free_GM479516143.pdf
    • http://pustaka-smpn3tpi.com/repository/play-minecraft-for-free-on-pc_GM479516143.pdf
    • http://pustaka-smpn3tpi.com/repository/coin-master-spin-ml-link_GM406889139.pdf
    • http://pustaka-smpn3tpi.com/repository/wwwcoin-master-hack-game-download_GM406889139.pdf
    • http://pustaka-smpn3tpi.com/repository/minecraft-hacked-client_GM479516143.pdf
    • https://www.yout
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005298.bin
4fcb2d412dceb108e36dcd7996f682112fb6859f629803fbb57bce3855a189e9
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5298 34896 bytes
font_01_sfnt_off00009aaa.bin
ce96ee2cb1800a95c911c77dfe81c9a72a479049c6676c05affe2ae793ebac2d
pdf-font-stream PDF embedded font (sfnt) at offset 0x9AAA 17568 bytes