Malicious PDF — malware analysis report

Static analysis result for SHA-256 854b134fef6abde3…

MALICIOUS

PDF

43.7 KB Created: 2021-05-17 18:39:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 69fcfdf0825f904faa1ed2b4b15844ec SHA-1: 41a208d1a967f520de861bc01830bc98b3bb776f SHA-256: 854b134fef6abde34c26b1286882fd3b8a02f793b90844d880e1f55c13588ce4
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a fake CAPTCHA lure and embedded URIs, strongly suggesting a social engineering attack. The primary URI, https://netcdn.xyz/app/431946152/free-robux-co-game-hack, likely leads to a malicious site designed to trick users into downloading further malware or providing credentials. No scripts were extracted, but the presence of embedded links and the fake CAPTCHA heuristic indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • 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
  • 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 https://netcdn.xyz/app/431946152/free-robux-co-game-hack
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/robux-hack-tools_GM431946152.pdf
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/play-minecraft-pocket-edition-for-free_GM479516143.pdf
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/play-minecraft-free-online-no-download_GM479516143.pdf
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/real-hack-for-coin-master_GM406889139.pdf
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/free-links-to-coin-master_GM406889139.pdf
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/minecraft-free-apk-java-edition_GM479516143.pdf
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/free-spins_GM406889139.pdf
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/microsoft-rewards-roblox_GM431946152.pdf
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/rbxoffer-com-free-robux_GM431946152.pdf
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/coin-master-free-spins-2021_GM406889139.pdf
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/coin-master-computer-hack_GM406889139.pdf
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/free-robux-generator-for-roblox-2021_GM431946152.pdf
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-android_GM431946152.pdf
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdf
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/my-robux_GM431946152.pdf
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/200-free-spins-coin-master_GM406889139.pdf
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-generator_GM431946152.pdf
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/is-there-a-way-to-get-free-robux_GM431946152.pdf
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/how-can-u-get-free-robux_GM431946152.pdf
    • https://elearning.man1padangpariaman.sch.id/__statics/gudangsoal/files/real-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004cf0.bin
721a44aa5898c96761a98c73fb49200ac71287f3767908da5f4bc8f9e458d233		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4CF0 26896 bytes
font_01_sfnt_off0000898a.bin
3ef9e48aa3d97d4217e004f7625a8cbae9320a74231b80a01553f6433e422360		 pdf-font-stream PDF embedded font (sfnt) at offset 0x898A 18012 bytes

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