Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d07855582fd1aa9…

MALICIOUS

PDF

46.2 KB Created: 2021-06-03 07:02:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: dce4915afa2e94b363e39de4d6914334 SHA-1: 9e90a8e9fd876b520e4cd7626d2b895f705d501a SHA-256: 4d07855582fd1aa9da92226ba7fcf88b34b7002ba006663a823cbc379109621c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free game hacks' and generators. The heuristic firings confirm the presence of malicious redirector links and a lure for game-related exploits. While no scripts were extracted, the document's structure and embedded URLs strongly suggest a phishing or scam attempt designed to lead users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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.online/app/431946152/free-roblox-money-game-hack In PDF document text
    • https://ibelive.tw/image/data/files/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/roblox-sign-in-free_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/tiktok-download-free-jio-mobile_GM835599320.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-robux-ad_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/how-to-get-robux-easy_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/try-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/minecraft-windows-10-edition-unlock-full-game-free_GM479516143.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-minecraft-servers-to-join_GM479516143.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-robux-com_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/roblox-apocalypse-rising-hack_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/how-to-get-free-robux-without-surveys_GM431946152.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/free-spin-link-coin-master-app_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/coin-master-spin-hack-trick_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • https://ibelive.tw/image/data/files/hack-coin-master-32-mod-apk_GM406889139.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_off00005060.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5060 28460 bytes
SHA-256: 1e7c35302e7e1a400530d27a79800f01044437883c8a3e7922602c6eb8bb5119
font_01_sfnt_off000091da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91DA 18324 bytes
SHA-256: 592c86f68d7cfce1f91e7ace661462f05e7807c87c96d21e42ea748452481f78

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