Malicious PDF — malware analysis report

Static analysis result for SHA-256 d14c76c9748884c7…

MALICIOUS

PDF

42.6 KB Created: 2021-05-14 14:20:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: ce6003da81b27454d5aa77e86d61c5ac SHA-1: 7e2c49ebb93bd1bf6279547b0000a9e1eb40d991 SHA-256: d14c76c9748884c7a69f37b3d57636e9e0917906279d9b27f871dae249c057a9
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The document contains numerous embedded URLs and a prominent link in the document body, all related to game currency and cheats, suggesting a lure for phishing or malware. The ML classifier strongly flagged this PDF as malicious. The presence of a 'password-protected archive' heuristic indicates a common tactic to bypass security scanning by encrypting the actual malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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.xyz/app/431946152/free-promo-codes-for-robux-game-hack
    • https://www.kambati.co.za/images/free-spin-coin-master-link-today_GM406889139.pdf
    • https://www.kambati.co.za/images/free-spins-from-coin-master_GM406889139.pdf
    • https://www.kambati.co.za/images/spin-and-coin-link_GM406889139.pdf
    • https://www.kambati.co.za/images/javascript-free-robux_GM431946152.pdf
    • https://www.kambati.co.za/images/cone-master_GM406889139.pdf
    • https://www.kambati.co.za/images/free-robux-card-codes_GM431946152.pdf
    • https://www.kambati.co.za/images/minecraft-java-edition-download-free_GM479516143.pdf
    • https://www.kambati.co.za/images/free-spins-for-coin-master_GM406889139.pdf
    • https://www.kambati.co.za/images/free-robux-giveaway_GM431946152.pdf
    • https://www.kambati.co.za/images/can-you-host-a-minecraft-server-for-free_GM479516143.pdf
    • https://www.kambati.co.za/images/how-to-buy-robux-for-free_GM431946152.pdf
    • https://www.kambati.co.za/images/lazyblox-com-free-robux_GM431946152.pdf
    • https://www.kambati.co.za/images/minecraft-pe-hacks-ios_GM479516143.pdf
    • https://www.kambati.co.za/images/robux-hack-2021_GM431946152.pdf
    • https://www.kambati.co.za/images/can-i-get-free-robux_GM431946152.pdf
    • https://www.kambati.co.za/images/blogspot-coin-master-spins_GM406889139.pdf
    • https://www.kambati.co.za/images/how-to-get-free-premium-roblox_GM431946152.pdf
    • https://www.kambati.co.za/images/coin-master-free-2021_GM406889139.pdf
    • https://www.kambati.co.za/images/coin-master-free-spins-link_GM406889139.pdf
    • https://www.kambati.co.za/images/roblox-tracker_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004885.bin
682042021a47199c157188b8bf8db5a1118a794cea16e0a3e74b257da028587d		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4885 25408 bytes
font_01_sfnt_off00008367.bin
f71c03fba91376071fb946d88a6d16afcc2c6d61aa4ef632c3571b6200829f5d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8367 18604 bytes

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