Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d48696777ea3518…

MALICIOUS

PDF

33.8 KB Created: 2021-06-19 11:53:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: cc1e8818ae6670c35c3798f49f17079c SHA-1: c883f42e1fb6a8c16582ad419dedb3b503b5af42 SHA-256: 5d48696777ea35182a6774b5fc3c417ee9b1357fbb6869e61927955b92e183ee
82 Risk Score

Malware Insights

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

The document presents itself as a lure for free Robux or game hacks, employing a fake CAPTCHA to trick the user into downloading a file. The presence of an external URI pointing to a suspicious download URL and the ML classifier's high confidence score indicate malicious intent. The document body and extracted URLs reinforce the theme of exploiting user interest in free in-game currency and cheats.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/free-robux-rixty-codes-2021-game-hack PDF link annotation
    • https://library.stikeswnpalu.ac.id/repository/coin-master-coin-hack_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/pixies-gigantic-coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/minecraft-multiplayer-free_GM479516143.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/free-roblox-glasses_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/free-coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/robloxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/download-coin-master-apk-hack_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/freerobuxhack-us_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/easy-robux-com_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/coin-master-invite-friends-hack_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/i-need-more-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/free-robux-yahoo_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/coin-master-hack-without-root_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/roblox-assassin_GM431946152.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • https://library.stikeswnpalu.ac.id/repository/e-free-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E6C 21304 bytes
SHA-256: 572778a940b15a88cf1b77da7d483d31f2744de45e9afbeaf1cdd79cd9efb22b
font_01_sfnt_off00005cf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CF5 19696 bytes
SHA-256: 855f708a0bef713205d3f99db54d70f309930c18d6886f6e911e3ad9dfd30643

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