Malicious PDF — malware analysis report

Static analysis result for SHA-256 a349916cd52cc485…

MALICIOUS

PDF

35.6 KB Created: 2021-06-30 10:44:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 9c38634c44901cd81908467b44d5ec9c SHA-1: e59c8de61cb950540aadca08a6a09dbbee4a1b96 SHA-256: a349916cd52cc48578d62810943e8a2208e85ca2e96d16b863050579f0ec6768
62 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs and a document body that explicitly advertises methods to obtain free in-game currency and cheats for popular games. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs, including one pointing to a raw IP address, suggests a phishing or malware distribution attempt. No scripts were extracted from this sample, but the overall pattern indicates a lure for users to download potentially harmful files.

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.co/app/431946152/how-to-get-free-robux-with-inspect-2021-game-hack
    • http://103.68.2.77/__statics/gudangsoal/files/roblox-phantom-forces-credit-hack-2021_GM431946152.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/get4mobilebiz-free-robux_GM431946152.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/free-roblox-top-battle-games_GM431946152.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/free-links-coin-master_GM406889139.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/how-do-you-hack-roblox_GM431946152.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/create-minecraft-server-free_GM479516143.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/cheat-engine-63-roblox-tycoon-hacks_GM431946152.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/coin-master-free-coins_GM406889139.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/free-tiktok-likes-2021_GM835599320.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/find-the-code-to-get-free-robux_GM431946152.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/300-free-spins-coin-master_GM406889139.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/does-cheat-engine-even-work-anymore-for-roblox_GM431946152.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/free-robux-no-verify-2021_GM431946152.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/get-free-robux_GM431946152.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/free-roblox-clothes_GM431946152.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/coin-master-free-spins-hack-link_GM406889139.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/free-robux-generator-20212021_GM431946152.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/free-robux-no-verification-needed_GM431946152.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/juno-hack-filedropper-roblox_GM431946152.pdf
    • http://103.68.2.77/__statics/gudangsoal/files/win-robux-free_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003134.bin
e07d0bc81c071fb94c8a948e5cb80f22a5c93fe2f4f318f912e6f3496b8e6a1e
pdf-font-stream PDF embedded font (sfnt) at offset 0x3134 22376 bytes
font_01_sfnt_off00006306.bin
91de4c87844e2f13457ce6ab8d53aca78ca2f0b8703ec75c13e89dc27e8652c0
pdf-font-stream PDF embedded font (sfnt) at offset 0x6306 20044 bytes