Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ccda202d16f605d…

MALICIOUS

PDF

226.7 KB Created: 2021-07-06 22:22:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 1704bb125b3b82b8c009c5225ca60342 SHA-1: 80e918dde5bfacf09d34d09b552e671ccd075f6a SHA-256: 1ccda202d16f605d962c63235218ee15b16d426bf45127fe87130c172137b86a
132 Risk Score

Malware Insights

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

The PDF document contains heuristics indicating it presents a fake CAPTCHA and a call-to-action to install a browser extension or update. It also contains an embedded URL pointing to a resource that appears to be related to game hacks or cheats, suggesting a lure for malware or credential theft. The document body, though heavily truncated, mentions 'Pokemon Go Free Promo Code' and includes the same URL, reinforcing the social engineering aspect.

Machine Learning

  • Nyx PDF Classifier clean score 0.0118

Heuristics 6

  • 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
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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/1094591345/pokemon-go-free-promo-code-game-hack
    • http://poltekkesbanten.ac.id/e-lib/repository/is-minecraft-free-on-switch_GM479516143.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/how-to-get-some-robux-for-free_GM431946152.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/https-roblox-robux-hack-2021_GM431946152.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/how-to-get-free-robux-2021-no-survey-or-download_GM431946152.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/redline-roblox-jailbreak-hack_GM431946152.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/coin-master-free-coins-and-spins-online-tool_GM406889139.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/free-robux-givaways_GM431946152.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/tiktok-free-account_GM835599320.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/free-robux-no-anti-bot-verification_GM431946152.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/coin-master-32-android-mod-hack-apk-download_GM406889139.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/buy-tiktok-followers-free_GM835599320.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/inject-hack-roblox-buides-club_GM431946152.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/free-coin-master-links_GM406889139.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/coin-master-hack-pro-gamers_GM406889139.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/how-to-get-robux-free-and-easy_GM431946152.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/roblox-anti-speed-hack-devforum_GM431946152.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/the-conquerors-3-roblox-hack_GM431946152.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/real-coin-master-hacks_GM406889139.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/free-robux-survey_GM431946152.pdf
    • http://poltekkesbanten.ac.id/e-lib/repository/free-robux-no-human-verify_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_023_off00031fb6.bin
aa315034669b4a7518c8b466098e58e2ac3dd3fd207a13057cf874f8d9d4656c		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31FB6 25576 bytes
font_01_sfnt_off00035bba.bin
13db1c569e6337ebf241592a37fe2f1e67c11d96dbc0326935230b03655663d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x35BBA 18532 bytes

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