Malicious PDF — malware analysis report

Static analysis result for SHA-256 729fa1e12f72752c…

MALICIOUS

PDF

34.7 KB Created: 2021-06-29 01:49:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 1918912f3bfb39e931135c7543c56162 SHA-1: 51936457b4792acf6ca0eb61ca79a6ed2a697bcb SHA-256: 729fa1e12f72752ccd63b96c64f595e67a9518cb67b647aa8830847a3daa43a7
102 Risk Score

Malware Insights

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

This PDF document contains numerous embedded links, many of which are SEO-optimized to appear as legitimate resources for game cheats and hacks. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, and the 'ML_NYX_PDF_MALICIOUS' score of 0.997996 strongly suggests malicious intent. The document likely serves as a lure to direct users to malicious websites for downloading further malware or engaging in other harmful activities.

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/roblox-free-cat-tail-game-hack
    • http://opac.akafarma-aceh.ac.id/repository/monttechscom-coin-master-free-spins_GM406889139.pdf
    • http://opac.akafarma-aceh.ac.id/repository/roblox-hack-bubble-gum-simulator_GM431946152.pdf
    • http://opac.akafarma-aceh.ac.id/repository/injustice-oa-roblox-hack_GM431946152.pdf
    • http://opac.akafarma-aceh.ac.id/repository/roblox-hack-no-human-verification-for-kids_GM431946152.pdf
    • http://opac.akafarma-aceh.ac.id/repository/coin-master-free-link-spin_GM406889139.pdf
    • http://opac.akafarma-aceh.ac.id/repository/como-sacar-buen-puntaje-en-juego-coin-master-free-spins_GM406889139.pdf
    • http://opac.akafarma-aceh.ac.id/repository/android-hack-roblox_GM431946152.pdf
    • http://opac.akafarma-aceh.ac.id/repository/cheat-codes-for-roblox-rocitizens_GM431946152.pdf
    • http://opac.akafarma-aceh.ac.id/repository/coin-master-free-stuff_GM406889139.pdf
    • http://opac.akafarma-aceh.ac.id/repository/free-robux-2021-no-survey-or-download_GM431946152.pdf
    • http://opac.akafarma-aceh.ac.id/repository/how-to-hack-mcpe-master-coins_GM406889139.pdf
    • http://opac.akafarma-aceh.ac.id/repository/free-money-in-roblox-rocitizens_GM431946152.pdf
    • http://opac.akafarma-aceh.ac.id/repository/how-to-get-free-tiktok-fans-without-human-verification_GM835599320.pdf
    • http://opac.akafarma-aceh.ac.id/repository/coin-master-fan-page-free-spins_GM406889139.pdf
    • http://opac.akafarma-aceh.ac.id/repository/how-to-hack-roblox-mobile_GM431946152.pdf
    • http://opac.akafarma-aceh.ac.id/repository/hack-para-coin-master-singapore_GM406889139.pdf
    • http://opac.akafarma-aceh.ac.id/repository/anti-cheat-roblox_GM431946152.pdf
    • http://opac.akafarma-aceh.ac.id/repository/how-to-get-ranked-up-in-roblox-group-hack_GM431946152.pdf
    • http://opac.akafarma-aceh.ac.id/repository/free-robux-hack-on-computer_GM431946152.pdf
    • http://opac.akafarma-aceh.ac.id/repository/free-spins-and-coins-coin-master-2021_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030a2.bin
6d57a13e9ea52999f7999dfa89c23bce7b9e59a3f16a452463e64192fe83e32b
pdf-font-stream PDF embedded font (sfnt) at offset 0x30A2 22604 bytes
font_01_sfnt_off00006322.bin
dd85643ebda3768e18a0520007570eb8518c01f82334c7bfd3557ff398e89b75
pdf-font-stream PDF embedded font (sfnt) at offset 0x6322 18876 bytes