Malicious PDF — malware analysis report

Static analysis result for SHA-256 e02259c9200e50cd…

MALICIOUS

PDF

34.2 KB Created: 2021-07-01 07:23:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 4c96767feeb9d5c94e6f20373c8c7424 SHA-1: afc2a4b5b8db4f114382f706662d1b6c376d563c SHA-256: e02259c9200e50cdfeee93937e92afd4f9375ec5332bca8a9d333a2705cb6ad0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for 'free Robux' and links to external URLs, indicating a phishing or scam attempt. The ML classifier strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure suggest it's designed to redirect users to malicious sites, potentially for credential harvesting or further malware delivery.

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/free-400-robux-promo-code-game-hack PDF link annotation
    • http://lib.mappifhui.org/repository/how-to-get-free-robux-on-roblox-2021-android_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-hack-free-robux-apk_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/hacker-web-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/tiktok-free-hashtags_GM835599320.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/aimbot-download-roblox_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-wheel_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/robuxmatch-com-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/who-hacked-my-main-group-chat-roblox_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/gratis-und-sicher-free-robux-gekommen_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-money-on-roblox-bloxburg_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-coin-master-spin-daily-link_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/youtube-how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/delta-hack-roblox_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-free-chest-link_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/can-you-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/tiktok-free-video-download_GM835599320.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_off00002d46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D46 22420 bytes
SHA-256: 59a393b7a03207a200bc68ac16cd77195d70629eedb365de67d39a8faf659928
font_01_sfnt_off00005f2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F2A 19536 bytes
SHA-256: 9ef81bf49a2f17052b270f1b2aff7ae3159ca28df4451616dbaea3fe5e6e4c3a