Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed9c11dbc2784969…

MALICIOUS

PDF

34.2 KB Created: 2021-06-27 20:59:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 40d4e5a3634d2849391d5026f9cfea65 SHA-1: 29aab56753c25d6dd2a7fdc15d8118bbc908ef04 SHA-256: ed9c11dbc2784969a2f8a3f467f6fec18c1a96e2ce07b1ee2c47fe17812cd23e
102 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, many of which are structured as SEO-optimized links pointing to websites offering game hacks and cheats. The ML classifier strongly indicates maliciousness, and the presence of a download button lure reinforces the intent to trick users into visiting these potentially harmful sites. The document body and extracted URLs suggest a phishing or scam attempt related to in-game items and exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/best-roblox-hack-sites-game-hack
    • http://perpustakaan.stietenggarong.ac.id/repository/minecraft-texture-packs-free-download_GM479516143.pdf
    • http://perpustakaan.stietenggarong.ac.id/repository/free-robux-quiz_GM431946152.pdf
    • http://perpustakaan.stietenggarong.ac.id/repository/coin-master-hack-apk-july-2021_GM406889139.pdf
    • http://perpustakaan.stietenggarong.ac.id/repository/roblox-is-asking-me-to-free-space-help_GM431946152.pdf
    • http://perpustakaan.stietenggarong.ac.id/repository/mad-city-roblox-cheats_GM431946152.pdf
    • http://perpustakaan.stietenggarong.ac.id/repository/free-spins-coin-master-ios-2021_GM406889139.pdf
    • http://perpustakaan.stietenggarong.ac.id/repository/get-robux_GM431946152.pdf
    • http://perpustakaan.stietenggarong.ac.id/repository/knife-server-roblox-hack-script-pastebin_GM431946152.pdf
    • http://perpustakaan.stietenggarong.ac.id/repository/rbxfree-com-free-robux_GM431946152.pdf
    • http://perpustakaan.stietenggarong.ac.id/repository/hacks-cbro-roblox_GM431946152.pdf
    • http://perpustakaan.stietenggarong.ac.id/repository/cheat-codes-for-roblox-speed-run-4_GM431946152.pdf
    • http://perpustakaan.stietenggarong.ac.id/repository/free-roblox-toy-codes-2021_GM431946152.pdf
    • http://perpustakaan.stietenggarong.ac.id/repository/roblox-com-get-robux-for-free_GM431946152.pdf
    • http://perpustakaan.stietenggarong.ac.id/repository/pubg-uc-or-g-card_GM1330123889.pdf
    • http://perpustakaan.stietenggarong.ac.id/repository/free-robux-with-no-human-verification_GM431946152.pdf
    • http://perpustakaan.stietenggarong.ac.id/repository/free-clothing-items-on-roblox_GM431946152.pdf
    • http://perpustakaan.stietenggarong.ac.id/repository/coin-master-spin-hack-no-human-verification_GM406889139.pdf
    • http://perpustakaan.stietenggarong.ac.id/repository/coin-master-hack-no-survey-or-verification_GM406889139.pdf
    • http://perpustakaan.stietenggarong.ac.id/repository/coin-master-hack-2021-android_GM406889139.pdf
    • http://perpustakaan.stietenggarong.ac.id/repository/dragon-ball-rage-roblox-hack-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030cc.bin
f208be324415641ed916f19512f367d83ba536fed2c0487135d534716891811e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x30CC 21888 bytes
font_01_sfnt_off000060f5.bin
06ba91b69eef10fbefef0f485342c1d0d115338cacfd67a9a51156cf5db0a645		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60F5 18880 bytes

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