Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd10f79352c32862…

MALICIOUS

PDF

251.1 KB Created: 2021-07-03 15:59:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: c8ed0178c48e93323fd495553f3e858e SHA-1: 0711ec00be23f0529bd1bd979def49acb508fd71 SHA-256: bd10f79352c328625d17b304340370694a18782f7299d4591b2f74a32854bf17
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs multiple lures to deceive the user. It presents a fake CAPTCHA and advance-fee scam language, suggesting the user needs to perform an action to claim a prize or avoid account termination. The document also contains a call-to-action button and an MFA lure, aiming to harvest credentials or trick the user into executing commands. Ultimately, it directs the user to a malicious URL associated with a game hack, indicating a phishing or scamming attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.0098

Heuristics 7

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/1330123889/panel-for-pubg-uc-game-hack
    • https://abellamoveis.com.br/ckfinder/userfiles/files/kuso-icu-roblox-hack_GM431946152.pdf
    • https://abellamoveis.com.br/ckfinder/userfiles/files/2021-hack-roblox_GM431946152.pdf
    • https://abellamoveis.com.br/ckfinder/userfiles/files/free-minecraft-maps_GM479516143.pdf
    • https://abellamoveis.com.br/ckfinder/userfiles/files/free-robux-no-verification-2021-ios_GM431946152.pdf
    • https://abellamoveis.com.br/ckfinder/userfiles/files/pokemon-go-free-account_GM1094591345.pdf
    • https://abellamoveis.com.br/ckfinder/userfiles/files/how-do-you-get-free-robux-with-cheat-engine_GM431946152.pdf
    • https://abellamoveis.com.br/ckfinder/userfiles/files/coin-master-hack-without-human-verification_GM406889139.pdf
    • https://abellamoveis.com.br/ckfinder/userfiles/files/free-roblox-gift-card-codes-list-2021_GM431946152.pdf
    • https://abellamoveis.com.br/ckfinder/userfiles/files/horizon-money-hack-may-2021-roblox_GM431946152.pdf
    • https://abellamoveis.com.br/ckfinder/userfiles/files/dominus-roblox-free_GM431946152.pdf
    • https://abellamoveis.com.br/ckfinder/userfiles/files/how-to-get-free-black-wings-in-roblox_GM431946152.pdf
    • https://abellamoveis.com.br/ckfinder/userfiles/files/roblox-hack-999999-robux-2021_GM431946152.pdf
    • https://abellamoveis.com.br/ckfinder/userfiles/files/como-generar-coin-master-free-spins_GM406889139.pdf
    • https://abellamoveis.com.br/ckfinder/userfiles/files/roblox-group-free-robux_GM431946152.pdf
    • https://abellamoveis.com.br/ckfinder/userfiles/files/how-to-get-free-robux-easy-2021_GM431946152.pdf
    • https://abellamoveis.com.br/ckfinder/userfiles/files/how-to-make-roblox-shirts-for-free_GM431946152.pdf
    • https://abellamoveis.com.br/ckfinder/userfiles/files/serveru-hack-roblox_GM431946152.pdf
    • https://abellamoveis.com.br/ckfinder/userfiles/files/free-roblox-accounts-that-work_GM431946152.pdf
    • https://abellamoveis.com.br/ckfinder/userfiles/files/free-spin-today-coin-master_GM406889139.pdf
    • https://abellamoveis.com.br/ckfinder/userfiles/files/roblox-hack-script-vehicle-simulator_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_024_off00037fd3.bin
4aa2a51b5ecd7106723434d9abf316e0301e9575e0c59f81dd10152f25f080d2		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x37FD3 25928 bytes
font_01_sfnt_off0003bcea.bin
578386462b42a176d1020a893708825ced02f796bc61bb7c88067abe32426757		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3BCEA 18508 bytes

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