Malicious PDF — malware analysis report

Static analysis result for SHA-256 f143f56d4d4cb9a1…

MALICIOUS

PDF

35.0 KB Created: 2021-07-02 06:29:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 775b93cc09b87a736ab6886dcdec3995 SHA-1: 6698be5f8ae87275c4370ed9ead7f5a34df81d16 SHA-256: f143f56d4d4cb9a16be3b4d7ed5e5e4c8aa0687c1986eaffaaa7ab9dec6ca03d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a lure related to game hacks and generators, specifically targeting popular games like Roblox. The ML classifier strongly indicated maliciousness, and the presence of external URIs suggests a redirection to a potentially harmful site. No scripts were extracted, but the document's content and heuristics point to a social engineering tactic to trick users into downloading malware or visiting malicious websites.

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-generator-without-human-verification-game-hack PDF link annotation
    • http://lib.mappifhui.org/repository/robloxcom-without-download-free-game_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-card-collection-hack_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/criminal-vs-swat-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/robux-free-co_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/get-free-robux-in-1-minute_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-codes-in-roblox-arsenal_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/cheat-cs-go-roblox_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/trouver-la-partie-dun-joueur-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-glitch-clickbait_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-minecraft-bedrock-server_GM479516143.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-hack-apk-2021-download_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/best-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-new-have-county-hack_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/mobile-hack-roblox-robux_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-picture_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-hack-case-clicker-roblox_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-32-hack-apk_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/minecraft-pe-free-ios_GM479516143.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/hacks-para-roblox-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_off000031d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31D9 21764 bytes
SHA-256: fe44f1938ebb0bf470342cb03fd5f39cfdd73a8fb61d9a0745b20162d29891a9
font_01_sfnt_off000061c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61C0 19776 bytes
SHA-256: c6b088ba0b9233e5e969c121ca3fdeab453c694edf303ffa48a6847b91d53174

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