Malicious PDF — malware analysis report

Static analysis result for SHA-256 16eee2657eb0af21…

MALICIOUS

PDF

226.9 KB Created: 2021-07-03 13:39:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: ba06c0675f6cdbac380479dfd39a819a SHA-1: 3ade56714918f28dd6df5de556109f34ebb62419 SHA-256: 16eee2657eb0af21b9c41d93ca138cd218e5aad7891240143494809eb6be9edb
132 Risk Score

Malware Insights

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

The PDF document contains heuristics indicating it is a fake CAPTCHA and a browser extension installation lure, aiming to trick users into downloading a fake application. The embedded URL points to a download for 'fake-gps-for-pokemon-go-free-game-hack', reinforcing the social engineering attempt. The document body, though heavily obfuscated, contains references to the URL and application name.

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/fake-gps-for-pokemon-go-free-game-hack
    • https://elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/how-do-you-get-tickets-on-roblox-for-free_GM431946152.pdf
    • https://www.elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/coin-master-hack-mod-apk-2021_GM406889139.pdf
    • https://www.elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/hackear-prison-life-roblox-2021-pc-dansploit_GM431946152.pdf
    • https://www.elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/robux-hacks-2021_GM431946152.pdf
    • https://elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/get-free-spins-on-coin-master_GM406889139.pdf
    • https://elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/easy-how-to-get-free-robux_GM431946152.pdf
    • https://www.elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/real-roblox_GM431946152.pdf
    • https://www.elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/roblox-how-to-hack-rs16_GM431946152.pdf
    • https://www.elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/kazoks-roblox-hack_GM431946152.pdf
    • https://elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/how-can-i-get-free-robux_GM431946152.pdf
    • https://www.elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/coin-master-hack-app-for-ios_GM406889139.pdf
    • https://www.elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/whats-robux_GM431946152.pdf
    • https://www.elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/earn-robux-websites_GM431946152.pdf
    • https://www.elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/minecraft-pe-015-0-apk-free-download_GM479516143.pdf
    • https://www.elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/rob-hacker-robux_GM431946152.pdf
    • https://elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-codes-2021_GM431946152.pdf
    • https://www.elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/coin-master-apk-hack-2021-ios_GM406889139.pdf
    • https://www.elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/free-coin-coin-master_GM406889139.pdf
    • https://elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/dragon-balll-rage-roblox-hack_GM431946152.pdf
    • https://elearning.man1bukittinggi.sch.id/__statics/gudangsoal/files/wurst-client-18-9_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_023_off00032082.bin
7f60195637b39144ae3305c47a1fa9187d528cfb9eb80cc125eec7124197afe6		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32082 25576 bytes
font_01_sfnt_off00035c8a.bin
718ae1aa365d88ffc9933a12b06c16166bbe9f37b1c92218ca5b362f933488b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x35C8A 18532 bytes

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