Malicious PDF — malware analysis report

Static analysis result for SHA-256 9de8a176afd08bb4…

MALICIOUS

PDF

34.8 KB Created: 2021-07-07 23:26:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 3df4e06f79242a5a4a468c7a30e4a24d SHA-1: b9d4859be67bbf48793636665b696ef4d1d111e0 SHA-256: 9de8a176afd08bb4ec633d29ba5e04c8673fe1348bd3fb2630ee7731c2c9ddb8
102 Risk Score

Malware Insights

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

The PDF document contains numerous links, identified by the PDF_SEO_LINK_FARM heuristic, that promise free in-game currency for popular games. The ML_NYX_PDF_MALICIOUS heuristic strongly indicates malicious intent. The document body and extracted URLs suggest a scam designed to redirect users to potentially malicious websites or phishing pages.

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/431946152/how-to-get-free-robux-com-game-hack
    • http://digilib.stiki.ac.id/repository/roblox-free-roblox-card-codes_GM431946152.pdf
    • http://digilib.stiki.ac.id/repository/coin-master-free-coins_GM406889139.pdf
    • http://digilib.stiki.ac.id/repository/free-robux-promo-codes_GM431946152.pdf
    • http://digilib.stiki.ac.id/repository/free-app-download-robux-genurater-on-pc_GM431946152.pdf
    • http://digilib.stiki.ac.id/repository/can-roblox-accounts-be-hacked_GM431946152.pdf
    • http://digilib.stiki.ac.id/repository/how-to-get-free-snacks-on-coin-master_GM406889139.pdf
    • http://digilib.stiki.ac.id/repository/how-to-get-minecoins-in-minecraft-for-free_GM479516143.pdf
    • http://digilib.stiki.ac.id/repository/tiktok-free-views-and-likes_GM835599320.pdf
    • http://digilib.stiki.ac.id/repository/free-robux-script_GM431946152.pdf
    • http://digilib.stiki.ac.id/repository/roblox-bee-swarm-simulator-hack-2021_GM431946152.pdf
    • http://digilib.stiki.ac.id/repository/roblox-free-telechargement_GM431946152.pdf
    • http://digilib.stiki.ac.id/repository/how-to-get-free-robux-2021_GM431946152.pdf
    • http://digilib.stiki.ac.id/repository/can-i-get-free-robux_GM431946152.pdf
    • http://digilib.stiki.ac.id/repository/free-spins-coin-master-unlimited_GM406889139.pdf
    • http://digilib.stiki.ac.id/repository/coin-master-free-spin-and-coins-links-2021_GM406889139.pdf
    • http://digilib.stiki.ac.id/repository/free-robux-that-actually-works-2021_GM431946152.pdf
    • http://digilib.stiki.ac.id/repository/roblox-apk-hack-mega_GM431946152.pdf
    • http://digilib.stiki.ac.id/repository/wich-are-the-best-free-level-7-exploits-for-roblox_GM431946152.pdf
    • http://digilib.stiki.ac.id/repository/how-many-villages-are-in-coin-master_GM406889139.pdf
    • http://digilib.stiki.ac.id/repository/how-to-hack-roblox-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_off0000317c.bin
512049ecdd7d347ce52a20d3e69990fa21d370353625c4a1a497b18774170b63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x317C 22256 bytes
font_01_sfnt_off00006256.bin
2a82a6b4e88d45175d2fe2eaf287537d274cffbbed35dd56f8b6e767c09dfc54		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6256 19244 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.