Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f64e4eb93ee5d29…

MALICIOUS

PDF

34.8 KB Created: 2021-07-07 04:34:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 3c24140e185cee36e16b61a06fb45082 SHA-1: d72866186c81a23d8dedf5cfbd6e272509c52046 SHA-256: 3f64e4eb93ee5d29582a53b8eece72e9d5daa3e6e13c91b1c2ad488d5f9ef5eb
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a link farm, all pointing to sites offering game-related cheats and hacks. The primary URL, http://netcdn.tw/app/479516143/minecraft-bedrock-free-game-hack, suggests a lure for downloading malicious software disguised as game hacks. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of malicious intent.

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.tw/app/479516143/minecraft-bedrock-free-game-hack
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/how-to-get-free-robux-as-a-kid_GM431946152.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/download-coin-master-hack-mod-apk_GM406889139.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/free-robux-videos-for-robux_GM431946152.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/comapp-trekfree-coin-spindaily-link-master_GM406889139.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/how-to-get-a-lot-of-robux_GM431946152.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/coin-master-hacks-free-spins_GM406889139.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/minecraft-clipart-free_GM479516143.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/coin-master-hack-xyz-download_GM406889139.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/minecraft-java-edition-code-free_GM479516143.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/what-is-coin-master-app_GM406889139.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/real-robux-generator_GM431946152.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/how-to-get-free-robux-easy-on-phone_GM431946152.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/how-to-get-minecraft-java-for-free_GM479516143.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/coin-master-free-spins-app_GM406889139.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/how-to-hack-roblox-accounts-passwords_GM431946152.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/roblox-free-wings_GM431946152.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/coin-master-gold-cards-hack-2021_GM406889139.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/minecraft-dungeons-free_GM479516143.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/minecraft-xbox-one-free_GM479516143.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/easy-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003367.bin
7f4b14f2f997c2162730a27c62b49e34b1db3448377469f6e8172da4e47a3d4b
pdf-font-stream PDF embedded font (sfnt) at offset 0x3367 22336 bytes
font_01_sfnt_off000064ae.bin
44275154cdcbe071c511b06e860c763300f9c8e5a1952ff2f2d54649f622e79e
pdf-font-stream PDF embedded font (sfnt) at offset 0x64AE 18560 bytes