Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b17fdb9fbc86669…

MALICIOUS

PDF

34.8 KB Created: 2021-06-18 07:51:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 3150790d2ba70c5f75997a385b2ca2a4 SHA-1: df15606df53328a08542777ab7ee3e3928e67c71 SHA-256: 0b17fdb9fbc86669760c0e1a0d95655b0547b717a9b9e394615083a67e0a3d9c
82 Risk Score

Malware Insights

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

The document presents a fake CAPTCHA or human verification prompt to trick the user into clicking a malicious link. The embedded URL and numerous other URLs found within the document body point to potential download sites for games or hacks, suggesting a lure for malware delivery. No scripts were extracted from this sample.

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/moon-tycoon-side-roblox-hacks-game-hack PDF link annotation
    • http://library.ft.upnvj.ac.id/repository/blox-rewards_GM431946152.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/free-robux-discord_GM431946152.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/coin-master-hack-for-android_GM406889139.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/mcpe-master-hack-unlimited-coins_GM406889139.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/coin-master-free-coins-and-spins-hack_GM406889139.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/roblox-survey-for-robux_GM431946152.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/minecraft-free-download-ipad_GM479516143.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/coin-master-free-spins-that-really_GM406889139.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/minecraft-redeem-code-free-2021_GM479516143.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/pokemon-go-free-and-verizon_GM1094591345.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/roblox-dominus-free_GM431946152.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/free-robux-app-code_GM431946152.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/coin-master-free-spins-link-app-download_GM406889139.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/coin-master-free-coins--spins_GM406889139.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/coin-master-hack-co_GM406889139.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/can-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://library.ft.upnvj.ac.id/repository/easy-way-to-get-free-robux_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_off00003086.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3086 22256 bytes
SHA-256: a5e7c337890bc3cb2f3ad71e632a65a977185adcc1c4f2c39a0582449fea1237
font_01_sfnt_off00006218.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6218 19328 bytes
SHA-256: e0619db22ce9c28675e789bb0d6ddc5c49f53905c1c7e083ebf71e4bad0f3c27

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