Malicious PDF — malware analysis report

Static analysis result for SHA-256 775b72a834e4c1a0…

MALICIOUS

PDF

35.8 KB Created: 2021-06-29 07:17:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: cc2d8c9376fa5171e882ea44b6b7c6ae SHA-1: 799f610a5bc0acd19d913a2709c419883983ecd5 SHA-256: 775b72a834e4c1a016b5de29f824c5aeabdac7ab039323d25ac31fea5e3437de
82 Risk Score

Malware Insights

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

The document contains multiple embedded URLs and a prominent external URI pointing to sites offering game cheats and hacks, suggesting a lure for downloading malicious content. The heuristic for a password-protected archive handoff indicates the user is likely instructed to decrypt a payload, which is a common tactic for evading security controls. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/roblox-hack-999.999-robux-android-game-hack
    • http://library.apsidoarjo.ac.id/repository/minecraft-bedrock-hacks_GM479516143.pdf
    • http://library.apsidoarjo.ac.id/repository/coin-master-free-spin-reward-links_GM406889139.pdf
    • http://library.apsidoarjo.ac.id/repository/roblox-cheat-check-cas_GM431946152.pdf
    • http://library.apsidoarjo.ac.id/repository/website-for-free-exploits-roblox_GM431946152.pdf
    • http://library.apsidoarjo.ac.id/repository/free-star-codes-2021-roblox_GM431946152.pdf
    • http://library.apsidoarjo.ac.id/repository/roblox-visual-cheats-script_GM431946152.pdf
    • http://library.apsidoarjo.ac.id/repository/6how-to-get-free-roblox-pc_GM431946152.pdf
    • http://library.apsidoarjo.ac.id/repository/can-pokemon-go-free-remote-raid-pass_GM1094591345.pdf
    • http://library.apsidoarjo.ac.id/repository/coin-master-unlimited-free-spins-link-2021_GM406889139.pdf
    • http://library.apsidoarjo.ac.id//repository/microsoft-rewards-robux_GM431946152.pdf
    • http://library.apsidoarjo.ac.id/repository/roblox-jailbreak-hack-speed_GM431946152.pdf
    • http://library.apsidoarjo.ac.id/repository/minecraft-free-ios-2021_GM479516143.pdf
    • http://library.apsidoarjo.ac.id/repository/roblox-hack-account-and-password_GM431946152.pdf
    • http://library.apsidoarjo.ac.id/repository/daily-free-spins-for-coin-master_GM406889139.pdf
    • http://library.apsidoarjo.ac.id//repository/coin-master-code-hack_GM406889139.pdf
    • http://library.apsidoarjo.ac.id/repository/roblox-hacked-com-2021_GM431946152.pdf
    • http://library.apsidoarjo.ac.id/repository/how-to-get-free-money-in-roblox-vehicle-simulator-2021_GM431946152.pdf
    • http://library.apsidoarjo.ac.id/repository/roblox-cheat-wizard-life_GM431946152.pdf
    • http://library.apsidoarjo.ac.id/repository/get-free-cards-for-coin-master_GM406889139.pdf
    • http://library.apsidoarjo.ac.id/repository/roblox-thomas-wooden-railway-free-demo_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000348f.bin
978f950f892d2d8c049a4c97a18165f1f7a9a4165407643f03d9021e6a93b51a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x348F 22336 bytes
font_01_sfnt_off0000663f.bin
12a986d635597e05eb291d6bf1abc5f5a54876b40983856b9b4d26b9a0edc7f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x663F 19320 bytes

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