Malicious PDF — malware analysis report

Static analysis result for SHA-256 1adbb09398672a27…

MALICIOUS

PDF

227.0 KB Created: 2021-07-04 13:11:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: a2c873a3b1154c95fa876513ae5be6b3 SHA-1: 9ee2a23e88ed81a05e036578b13539c601f84984 SHA-256: 1adbb09398672a27fea91419712fc29d11777a688c319ecfb33d06772d253eb1
132 Risk Score

Malware Insights

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

The PDF document contains heuristics indicating it presents a fake CAPTCHA and a lure to install a browser extension or update. The embedded URL, http://netcdn.tw/app/1094591345/without-pokemon-go-free-account-2021-game-hack, likely serves as the download source for the malicious component. The document's content and heuristics strongly suggest a social engineering attack aimed at compromising the user's browser or system.

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/without-pokemon-go-free-account-2021-game-hack
    • https://allhimalayantreks.com/userfiles/files/coin-master-free-spins-today-daily-links_GM406889139.pdf
    • https://allhimalayantreks.com/userfiles/files/was-minecraft-ever-free_GM479516143.pdf
    • https://allhimalayantreks.com/userfiles/files/link-coin-master_GM406889139.pdf
    • https://allhimalayantreks.com/userfiles/files/roblox-demon_GM431946152.pdf
    • https://allhimalayantreks.com/userfiles/files/coin-master-free-spin-today_GM406889139.pdf
    • https://allhimalayantreks.com/userfiles/files/get-free-robux-generator_GM431946152.pdf
    • https://allhimalayantreks.com/userfiles/files/how-to-hack-any-roblox-account_GM431946152.pdf
    • https://allhimalayantreks.com/userfiles/files/mistplay-robux_GM431946152.pdf
    • https://allhimalayantreks.com/userfiles/files/free-spins-for-coin-master_GM406889139.pdf
    • https://allhimalayantreks.com/userfiles/files/coin-master-links-to-get-free-spins_GM406889139.pdf
    • https://allhimalayantreks.com/userfiles/files/roblox-free-robux-codes_GM431946152.pdf
    • https://allhimalayantreks.com/userfiles/files/roblox-redeem-robux-code-free_GM431946152.pdf
    • https://allhimalayantreks.com/userfiles/files/free-robux-codes_GM431946152.pdf
    • https://allhimalayantreks.com/userfiles/files/coin-master-free-spins-link-no-verification-2021_GM406889139.pdf
    • https://allhimalayantreks.com/userfiles/files/download-roblox-free-ps4_GM431946152.pdf
    • https://allhimalayantreks.com/userfiles/files/coin-master-hack-software_GM406889139.pdf
    • https://allhimalayantreks.com/userfiles/files/www-roblox-cheatus-limited-amount-hurry-and-claim_GM431946152.pdf
    • https://allhimalayantreks.com/userfiles/files/hack-robux-pastebin_GM431946152.pdf
    • https://allhimalayantreks.com/userfiles/files/coin-master-free-spin-ml_GM406889139.pdf
    • https://allhimalayantreks.com/userfiles/files/earn-free-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_023_off00031dcf.bin
bf075e1886921ac79161bae149de9843346c5bada073351c05a43a436d0b9699		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31DCF 25576 bytes
font_01_sfnt_off000359c6.bin
4aa7f2bf0ed872681fa49845b943e1012be452d693b1f2454105fec996e116f2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x359C6 19488 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.