Malicious PDF — malware analysis report

Static analysis result for SHA-256 666e161b7f01be64…

MALICIOUS

PDF

42.2 KB Created: 2021-05-12 04:34:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: f4c68575e8146b4e5e859c045883493c SHA-1: ed750dd3d6ccbf756fd2f85f29e45f43473a11c3 SHA-256: 666e161b7f01be642bf70a19507abdd9accb1de6700b9121ef116828e86bd6ec
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a fake CAPTCHA lure, designed to trick users into interacting with the document. It also contains an embedded URI pointing to a suspicious URL, likely intended to download a secondary payload. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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-generator-codes-game-hack
    • http://www.perpustakaan.baytalhikmah.sch.id//repository/best-tricks-co-robux_GM431946152.pdf
    • http://www.perpustakaan.baytalhikmah.sch.id/repository/free-coin-master-links_GM406889139.pdf
    • http://www.perpustakaan.baytalhikmah.sch.id/repository/free-robux-no-verification-at-all_GM431946152.pdf
    • http://perpustakaan.baytalhikmah.sch.id/repository/roblox-help-free-robux_GM431946152.pdf
    • http://www.perpustakaan.baytalhikmah.sch.id//repository/free-spins-on-coin-master-2021_GM406889139.pdf
    • http://www.perpustakaan.baytalhikmah.sch.id/repository/free-robux-no-offers_GM431946152.pdf
    • http://perpustakaan.baytalhikmah.sch.id/repository/coin-master-free-spins-cheat_GM406889139.pdf
    • http://perpustakaan.baytalhikmah.sch.id/repository/claim-coin-master-free-spins_GM406889139.pdf
    • http://perpustakaan.baytalhikmah.sch.id/repository/how-to-hack-roblox-to-get-robux_GM431946152.pdf
    • http://perpustakaan.baytalhikmah.sch.id/repository/coin-master-attack-hack-apk_GM406889139.pdf
    • http://www.perpustakaan.baytalhikmah.sch.id//repository/free-robux-apk_GM431946152.pdf
    • http://www.perpustakaan.baytalhikmah.sch.id//repository/free-robux-hacks-no-verification_GM431946152.pdf
    • http://perpustakaan.baytalhikmah.sch.id/repository/demon-roblox_GM431946152.pdf
    • http://perpustakaan.baytalhikmah.sch.id/repository/coin-master-hack-mod_GM406889139.pdf
    • http://www.perpustakaan.baytalhikmah.sch.id/repository/minecraft-free-computer-game_GM479516143.pdf
    • http://www.perpustakaan.baytalhikmah.sch.id/repository/free-spins-coin-master-no-survey_GM406889139.pdf
    • http://perpustakaan.baytalhikmah.sch.id/repository/how-to-get-robux-for-free-2021_GM431946152.pdf
    • http://perpustakaan.baytalhikmah.sch.id/repository/daily-free-spins-for-coin-master_GM406889139.pdf
    • http://perpustakaan.baytalhikmah.sch.id/repository/coin-master-hack-app-android-download_GM406889139.pdf
    • http://perpustakaan.baytalhikmah.sch.id/repository/coin-master-hack-without-downloading-apps_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004779.bin
83064512329a03a30189f170d8f4abd64bc9d6f90a0e38ddfb3941cb1ff43062		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4779 25120 bytes
font_01_sfnt_off000081b9.bin
a3c42500ab941ca6b3cc9f1b186676fd5f7f9f0c0249e27b539405b68f11e4ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81B9 18520 bytes

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