Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec10f7ede8fd3036…

MALICIOUS

PDF

33.3 KB Created: 2021-07-03 19:22:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: cbfaeb36a2002b25dfba438c8d69f775 SHA-1: f5b75035aa844780947d080441fd91c8e9d70703 SHA-256: ec10f7ede8fd30362d798a191f5465eced7970de1fc4f166b71a4b56e0a9f1d0
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs pointing to websites offering game cheats and in-game currency, strongly suggesting a phishing or malware distribution attempt. The ML classifier also flagged this PDF as malicious with high confidence. The presence of external URIs and the ML detection indicate a high likelihood of this document being used to deliver a second-stage payload or lead users to a fraudulent site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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/431946152/rbxdemon-game-hack
    • http://36.94.36.7/elib//repository/minecraft-windows-10-edition-hacked-client_GM479516143.pdf
    • http://36.94.36.7/elib/repository/hackear-coin-master-2021_GM406889139.pdf
    • http://36.94.36.7/elib/repository/oprewards-com-robux_GM431946152.pdf
    • http://36.94.36.7/elib/repository/roblox-its-free-know-your-meme_GM431946152.pdf
    • http://36.94.36.7/elib/repository/roblox-4-all-cool-hack_GM431946152.pdf
    • http://36.94.36.7/elib/repository/hack-para-coin-master-sin-verification_GM406889139.pdf
    • http://36.94.36.7/elib/repository/free-roblox-accessories_GM431946152.pdf
    • http://36.94.36.7/elib//repository/coin-master-spins-and-coins_GM406889139.pdf
    • http://36.94.36.7/elib//repository/coin-master-free-coins-and-spins-2021_GM406889139.pdf
    • http://36.94.36.7/elib//repository/easy-robux-today_GM431946152.pdf
    • http://36.94.36.7/elib/repository/coin-master-hack-xyz-apk-download_GM406889139.pdf
    • http://36.94.36.7/elib/repository/hack-roblox-fr_GM431946152.pdf
    • http://36.94.36.7/elib/repository/roblox-lawsuit_GM431946152.pdf
    • http://36.94.36.7/elib/repository/earn-free-spins-in-coin-master_GM406889139.pdf
    • http://36.94.36.7/elib/repository/free-spins-and-coins-coin-master_GM406889139.pdf
    • http://36.94.36.7/elib/repository/free-robux-not-fake_GM431946152.pdf
    • http://36.94.36.7/elib//repository/hack-game-coin-master_GM406889139.pdf
    • http://36.94.36.7/elib//repository/100-free-spins-coin-master_GM406889139.pdf
    • http://36.94.36.7/elib//repository/make-your-own-minecraft-server-free_GM479516143.pdf
    • http://36.94.36.7/elib/repository/free-headphones-in-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002cb1.bin
7ca3dd0da03883e14739f75f9623b4ef75c88737ed20347d5e4042bb456452c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB1 22128 bytes
font_01_sfnt_off00005d7a.bin
c8a2595e802ed22d3f92a782be696ae3de60702987379a605de61e4dc59e7030		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D7A 18848 bytes

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