Malicious PDF — malware analysis report

Static analysis result for SHA-256 f756301dd0c2f145…

MALICIOUS

PDF

43.1 KB Created: 2021-05-12 07:42:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: ddeefd2ddb79770c22343d0fc6833715 SHA-1: 501e0aeb5e19ba6529c28d522aeb3f3afb422a18 SHA-256: f756301dd0c2f1452b62019f24b1f53f1dca7f1db7c7023032328b29bae2c865
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains an embedded URL and text that lures the user to click for game-related rewards, a common social engineering tactic. The ML classifier strongly flagged this PDF as malicious, and the presence of multiple related URLs suggests a phishing or malware distribution campaign. No scripts were extracted, but the document structure and embedded links indicate a malicious intent to redirect the user to a potentially harmful site.

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/406889139/free-spins-promo-code-for-coin-master-game-hack
    • http://library.thamrin.ac.id/repository/rbxfree-com-free-robux_GM431946152.pdf
    • http://library.thamrin.ac.id/repository/coin-master-coins_GM406889139.pdf
    • http://library.thamrin.ac.id/repository/roblox-rewards-robux_GM431946152.pdf
    • http://library.thamrin.ac.id/repository/hack-game-plus-com-coin-master_GM406889139.pdf
    • http://library.thamrin.ac.id/repository/coin-master-free-gift-link-2021_GM406889139.pdf
    • http://library.thamrin.ac.id/repository/free-spin-in-coin-master_GM406889139.pdf
    • http://library.thamrin.ac.id/repository/free-robux-not-a-scam_GM431946152.pdf
    • http://library.thamrin.ac.id/repository/download-coin-master-hack-apk_GM406889139.pdf
    • http://library.thamrin.ac.id/repository/today-free-spin-coin-master_GM406889139.pdf
    • http://library.thamrin.ac.id/repository/free-robux-no-download_GM431946152.pdf
    • http://library.thamrin.ac.id/repository/free-online-spins-coin-master_GM406889139.pdf
    • http://library.thamrin.ac.id/repository/coin-master-hack-online-no-human-verification_GM406889139.pdf
    • http://library.thamrin.ac.id/repository/minecraft-free-ios-2021_GM479516143.pdf
    • http://library.thamrin.ac.id/repository/how-to-make-a-group-on-roblox-for-free_GM431946152.pdf
    • http://library.thamrin.ac.id/repository/coinmaster-gps-user-review-coinmaster-coin-master-hack-pagedemo-index_GM406889139.pdf
    • http://library.thamrin.ac.id/repository/free-spin-link-for-coin-master-game_GM406889139.pdf
    • http://library.thamrin.ac.id/repository/free-minecraft-account-and-password-generator_GM479516143.pdf
    • http://library.thamrin.ac.id/repository/legit-coin-master-hack-no-human-verification_GM406889139.pdf
    • http://library.thamrin.ac.id/repository/500-free-spins-coin-master_GM406889139.pdf
    • http://library.thamrin.ac.id/repository/coin-master-free-cards-link_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a65.bin
b69e34de2db6f9d167b16b17da8cb95b937be9100f58e427aeb4f5c4ed7bde8f		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A65 26072 bytes
font_01_sfnt_off000085ac.bin
012804114e8e9e2aa3b79000d66a92024558acae5133cb67a1122bc204fa5aec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85AC 18476 bytes

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