Malicious PDF — malware analysis report

Static analysis result for SHA-256 d117eed53ec8f00a…

MALICIOUS

PDF

34.4 KB Created: 2021-06-28 17:09:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 9dc495624697b8f3c5d0f1b7348f7b95 SHA-1: b5b71e1ccfdcbe2d3e27fbfb4729f158bcbb6344 SHA-256: d117eed53ec8f00a311d624a0d05132f0f35cc93acec951a81892fa327b1ea83
82 Risk Score

Malware Insights

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

The PDF document contains a lure for game hacks, specifically targeting Roblox users. It embeds multiple URLs that redirect to sites offering 'free generators' or 'hacks', with the primary malicious URL being http://netcdn.co/app/431946152/roblox-hack-injector-dll-game-hack. This suggests the document is designed to trick users into downloading potentially malicious software disguised as cheats.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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/roblox-hack-injector-dll-game-hack PDF link annotation
    • https://repository.poltekkesgorontalo.ac.id/repository/free-roblox-vip-servers_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/roblox-robux-cheat-pc_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/roblox-catalog-free_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/roblox-hack-ohne-handynummer-und-geld_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/actual-free-robux_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/how-to-get-free-robux-quick-and-easy_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/robux-hack-tools_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/robux-hack-today_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/how-to-hack-someone-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/coolkid-roblox-hack-download_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/coin-master-free-spins-11-01-2021_GM406889139.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/how-to-hack-felines-destiny-for-pawcoins-in-roblox_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/pokemon-go-free-versus-pc_GM1094591345.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/how-to-get-free-catalog-items-on-roblox-pastebin_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/how-to-download-minecraft-for-free-on-windows_GM479516143.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/free-roblox-promo-codes-2021_GM431946152.pdfIn PDF document text
    • https://repository.poltekkesgorontalo.ac.id/repository/free-robux-no-verification-2021_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_off00002ec9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EC9 22456 bytes
SHA-256: 8860cddda09edeae6ad8790a9ab8578c2d9a8c8f2644018a287e40b885bb5024
font_01_sfnt_off000060e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60E5 19116 bytes
SHA-256: 185e5547210a3258136d7968400677d91f6ef9164b6ac6662df32f114e3e9327

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