Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ed2c444120b15c6…

MALICIOUS

PDF

45.2 KB Created: 2021-06-08 20:13:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 92b97669d345915e9e83ec336b207223 SHA-1: 5b896fc9fdd72c6775dd69bac32cac6a5d5c62d3 SHA-256: 5ed2c444120b15c65a6a7699b374eabc4d2ea2861552ccb60658b9ca9a5406a0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that are disguised as game hacks or generators for popular games like Roblox and Coin Master. These links, such as 'https://netcdn.tw/app/431946152/roblox-shirts-templates-free-game-hack', are designed to lure users into clicking them. The high ML classifier score and the specific heuristic firings indicate a malicious intent to redirect users to potentially harmful websites for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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 https://netcdn.tw/app/431946152/roblox-shirts-templates-free-game-hack PDF link annotation
    • https://planetzoe.hr/files/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
    • https://planetzoe.hr/files/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/coin-master-hack-xyz_GM406889139.pdfIn PDF document text
    • https://www.planetzoe.hr/files/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://www.planetzoe.hr/files/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/coin-master-hack-2021-without-verification_GM406889139.pdfIn PDF document text
    • https://www.planetzoe.hr/files/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • https://www.planetzoe.hr/files/how-to-get-free-robux-without-downloading-any-apps_GM431946152.pdfIn PDF document text
    • https://www.planetzoe.hr/files/how-do-you-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/free-free-robux_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/tiktok-free-website_GM835599320.pdfIn PDF document text
    • https://planetzoe.hr/files/coin-master-hack-online-2021_GM406889139.pdfIn PDF document text
    • https://www.planetzoe.hr/files/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • https://planetzoe.hr/files/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://www.planetzoe.hr/files/can-i-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://www.planetzoe.hr/files/coin-master-free-codes_GM406889139.pdfIn PDF document text
    • https://www.planetzoe.hr/files/roblox-hack-apk_GM431946152.pdfIn PDF document text
    • https://www.planetzoe.hr/files/coin-master-game-legitimate-hack-without-signing-up-or-shareing_GM406889139.pdfIn PDF document text
    • https://www.planetzoe.hr/files/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://www.planetzoe.hr/files/robloxheroxyz-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
stream_004_off00005155.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5155 25280 bytes
SHA-256: 7bef3ede82a169805ffb91866fa77a8b91414b8138cbcfc373daace624bf0775
font_01_sfnt_off00008c2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C2F 19000 bytes
SHA-256: bddccd1c34bf1b84d2de2e01eb613022f6ece0826ce503cc6915f2156f9226a6

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