Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb363c3a2869c945…

MALICIOUS

PDF

34.4 KB Created: 2021-07-09 02:46:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 297941a1d3f03c4ee269f3ce9a10c260 SHA-1: 87b3bcdcb43f3900e1738aa18ceaf33ca5dd7250 SHA-256: cb363c3a2869c945dffffc37b68efdc7a8e7d11869731c512fe3ced87a328228
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and a document body that lures users with promises of game hacks and free accounts, indicating a phishing or social engineering attempt. The presence of an external URI and the ML classifier's high confidence score suggest that this document is designed to download and execute a malicious payload. No scripts were extracted from this sample, but the overall structure and content point towards a malicious downloader.

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.tw/app/431946152/roblox-tracker-game-hack
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/como-activar-hacks-en-roblox_GM431946152.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/cheat-enging-for-roblox_GM431946152.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/free-tiktok-accounts-and-passwords_GM835599320.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/how-to-get-free-robux-easy-steps_GM431946152.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/free-robux-with-no-survey_GM431946152.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/lumber-tycoon-money-hack-roblox-2021-february_GM431946152.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/easy-ways-to-get-robux-for-free-2021_GM431946152.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/pokemon-go-free-verizon-code_GM1094591345.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/hacks-for-roblox-phantom-forces-2021_GM431946152.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/free-mojang-account-with-minecraft_GM479516143.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/how-to-get-free-robux-2021-easy_GM431946152.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/free-coin-coin-master_GM406889139.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/roblox-free-pets_GM431946152.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/best-level-7-roblox-hacks-2021_GM431946152.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/get-roblox-for-free_GM431946152.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/how-to-hack-roblox-kazok_GM431946152.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/game-guardian-roblox-invisible-hack_GM431946152.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/roblox-gun-script-hack-r15_GM431946152.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/how-to-hack-roblox-jailbreak-new-hack-2021-working_GM431946152.pdf
    • https://www.solararabialtd.com/uploaded_files/userfiles/files/coin-master-free_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030c6.bin
ad195ae43578e1864ab5fc3bb1e26f6b5bfb5956cac420f31daa052fd195fab8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x30C6 22344 bytes
font_01_sfnt_off00006267.bin
610110891d67b7bd301a863f244ee12569d530ac85197f9b3a3b1767b40d8b41		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6267 18656 bytes

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