Malicious PDF — malware analysis report

Static analysis result for SHA-256 dcdd0b3c1d4375e2…

MALICIOUS

PDF

226.6 KB Created: 2021-07-09 03:19:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: e74067c5474496e32639498d19de91ad SHA-1: 1731115506a51488ee4b8db3167afb0aa8fda18e SHA-256: dcdd0b3c1d4375e25752c25370e255fadb02f384bbbb737eeb88ba0a197578d5
132 Risk Score

Malware Insights

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

The PDF document employs social engineering tactics, including a fake CAPTCHA and a browser extension installation lure, to trick users into downloading a payload. The embedded URL points to a resource offering a 'Pokemon Go Free Incense Game Hack', further reinforcing the lure. While no scripts were directly extracted, the PDF structure and heuristic firings strongly suggest an attempt to deliver a malicious payload via a deceptive link.

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-incense-game-hack
    • http://www.bdlh.go.th/ckfinder/userfiles/files/how-to-get-free-robux-2021_GM431946152.pdf
    • http://www.bdlh.go.th/ckfinder/userfiles/files/how-do-you-get-free-roblox_GM431946152.pdf
    • http://www.bdlh.go.th/ckfinder/userfiles/files/instagram-coin-master-free-spins_GM406889139.pdf
    • http://www.bdlh.go.th/ckfinder/userfiles/files/coin-master-hack-version-download-ios_GM406889139.pdf
    • http://www.bdlh.go.th/ckfinder/userfiles/files/minecraft-pe-free-download-ios-no-jailbreak_GM479516143.pdf
    • http://www.bdlh.go.th/ckfinder/userfiles/files/roblox-hack-download-no-survey-2021_GM431946152.pdf
    • http://www.bdlh.go.th/ckfinder/userfiles/files/how-to-hack-coin-master_GM406889139.pdf
    • http://www.bdlh.go.th/ckfinder/userfiles/files/daily-free-spins-on-coin-master_GM406889139.pdf
    • http://www.bdlh.go.th/ckfinder/userfiles/files/how-to-get-free-food-on-coin-master_GM406889139.pdf
    • http://www.bdlh.go.th/ckfinder/userfiles/files/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdf
    • http://www.bdlh.go.th/ckfinder/userfiles/files/daily-coin-master-free-spin-apk_GM406889139.pdf
    • http://www.bdlh.go.th/ckfinder/userfiles/files/how-to-get-free-unlimited-robux_GM431946152.pdf
    • http://www.bdlh.go.th/ckfinder/userfiles/files/free-blue-hair-in-roblox_GM431946152.pdf
    • http://www.bdlh.go.th/ckfinder/userfiles/files/coin-master-game-hacks_GM406889139.pdf
    • http://www.bdlh.go.th/ckfinder/userfiles/files/free-minecraft-survival-server_GM479516143.pdf
    • http://www.bdlh.go.th/ckfinder/userfiles/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdf
    • http://www.bdlh.go.th/ckfinder/userfiles/files/how-to-hack-roblox-apocalypse-rising_GM431946152.pdf
    • http://www.bdlh.go.th/ckfinder/userfiles/files/roblox-robux-cheaten_GM431946152.pdf
    • http://www.bdlh.go.th/ckfinder/userfiles/files/roblox-free-obc-accounts-2021_GM431946152.pdf
    • http://www.bdlh.go.th/ckfinder/userfiles/files/how-to-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_off00031ff8.bin
365de77d96052849666a3d7648cf2b4b2742012f1b7fd2b412eb7f79e19d3c43		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31FF8 25576 bytes
font_01_sfnt_off00035bfb.bin
e92782c719cdb5fb91aeabd1fa3f0103516c4d01b606e89c6417162a0a7e44cd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x35BFB 18360 bytes

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