Malicious PDF — malware analysis report

Static analysis result for SHA-256 67b091f686a006a9…

MALICIOUS

PDF

36.0 KB Created: 2021-07-03 11:53:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: f67b48a7c674d9870e47f04fea82cab3 SHA-1: 4899e806311012d9e985b1ab472c3756e7e2a9e8 SHA-256: 67b091f686a006a99619b6ac768e0ebd018cb4c9ae7bf740fc9212d02ab062b9
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that are designed to lure users into clicking on links related to game hacks and free currency. The primary URL, http://netcdn.tw/app/406889139/coin-master-free-spins-link-today-facebook-game-hack, is flagged as a redirector for game hacks. While no scripts were explicitly extracted, the nature of the embedded links suggests a phishing or social engineering attack, likely intended to lead users to malicious websites or download further malware. The ML classifier also strongly indicated maliciousness.

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.tw/app/406889139/coin-master-free-spins-link-today-facebook-game-hack PDF link annotation
    • http://gts.edu.gh/library/repository/free-robux-on-robux-store_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/roblox-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/cm-spin-link_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-hack-the-creater-roblox_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-hack-on-a-roblox-game_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-hack-mod-apk-2021-download_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-gift-link-hack_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/master-coin-hack-app_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/roblox-gui-hack_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/lit-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/minecraft-tiktok-hacks_GM479516143.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-get-any-item-for-free-robux_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/roblox-tycoon-cheat-codes_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/get-free-followers-roblox_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-robux-codes-2021-real_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-free-spins-a2z-help_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/shark-bite-hacks-roblox-script_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/robux-hack-my-dudes_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_off00003499.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3499 22972 bytes
SHA-256: a49360c32377627181fe17a2d088ce82f166ed8179078a6e8e4f363dfb809a59
font_01_sfnt_off0000681e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x681E 18856 bytes
SHA-256: c3ade08de57381628f5686ccf696f3ba3849ebe8fe4747e995ca261a5a4133ad

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