Malicious PDF — malware analysis report

Static analysis result for SHA-256 df47ce486898a58a…

MALICIOUS

PDF

44.6 KB Created: 2021-06-11 05:19:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: e7cc8e6e0b12db4dd63032e041fd7e43 SHA-1: 2ca5c70d724fb20690b2fd85ab17709c374cb1e7 SHA-256: df47ce486898a58ab3f6245305abafd2ef8c281bf38feab00de26f0336428654
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file exhibits characteristics of a malicious document, including a high ML classification score and the presence of a large number of external links, many of which appear to be SEO-driven. The document body, though heavily obfuscated, contains references to game cheats and hacks, suggesting a lure to download potentially harmful files. The embedded URLs point to resources related to game exploits and cheats, reinforcing the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.tw/app/431946152/ccv3-roblox-cheats-2021-game-hack
    • http://perpus.polbitrada.ac.id/repository/coin-master-32-android-mod-hack-apk-download_GM406889139.pdf
    • http://perpus.polbitrada.ac.id/repository/coin-master-free-cards-link_GM406889139.pdf
    • http://perpus.polbitrada.ac.id/repository/free-minecraft-skins-ps4_GM479516143.pdf
    • http://perpus.polbitrada.ac.id/repository/free-robux-for-free_GM431946152.pdf
    • http://perpus.polbitrada.ac.id/repository/how-to-get-free-daily-spins-on-coin-master_GM406889139.pdf
    • http://perpus.polbitrada.ac.id/repository/roblox-full-spiderman-outfit-free_GM431946152.pdf
    • http://perpus.polbitrada.ac.id/repository/websites-that-give-free-robux_GM431946152.pdf
    • http://perpus.polbitrada.ac.id/repository/coin-master-hack-spins-download_GM406889139.pdf
    • http://perpus.polbitrada.ac.id/repository/minecraft-rtx-download-free_GM479516143.pdf
    • http://perpus.polbitrada.ac.id/repository/how-to-create-a-minecraft-server-for-free_GM479516143.pdf
    • http://perpus.polbitrada.ac.id/repository/coin-master-hack-pc-download_GM406889139.pdf
    • http://perpus.polbitrada.ac.id/repository/coin-master-free-daily-rewards_GM406889139.pdf
    • http://perpus.polbitrada.ac.id/repository/hack-download_GM431946152.pdf
    • http://perpus.polbitrada.ac.id/repository/coin-master-free-coins-and-spins-daily_GM406889139.pdf
    • http://perpus.polbitrada.ac.id/repository/coin-master-hack-spin-generator_GM406889139.pdf
    • http://perpus.polbitrada.ac.id/repository/free-games-like-minecraft_GM479516143.pdf
    • http://perpus.polbitrada.ac.id/repository/hey-google-how-do-you-get-free-robux_GM431946152.pdf
    • http://perpus.polbitrada.ac.id/repository/coin-master-heaven-free-daily-spins_GM406889139.pdf
    • http://perpus.polbitrada.ac.id/repository/how-do-i-get-free-robux-on-roblox_GM431946152.pdf
    • http://perpus.polbitrada.ac.id/repository/free-unlimited-coin-master-online-tool_GM406889139.pdf
    • https://direct-link.net
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004f7e.bin
f2193d1996cc6d1247d248bdfc030d154105d7ae4d401c55c85534f59a018f10
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F7E 25048 bytes
font_01_sfnt_off00008931.bin
102f4e2fc143c0be6a8dd23f4a8e21b4a970471d6088fd58b3d1f0fb4073d70e
pdf-font-stream PDF embedded font (sfnt) at offset 0x8931 18972 bytes