Malicious PDF — malware analysis report

Static analysis result for SHA-256 09fb7ed33b15ebf1…

MALICIOUS

PDF

34.0 KB Created: 2021-06-28 09:36:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 65e2d4159c9bd1920a254c02c5259bea SHA-1: 792ebb77ddba78c976b522dcd7740beeec455093 SHA-256: 09fb7ed33b15ebf13a24527aed3dab82e281618d49f6d9964791ac60c01bafa3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a known malicious redirector infrastructure, specifically advertising 'game hacks' and 'free generators' for popular games. The primary malicious URL identified is http://netcdn.co/app/431946152/call-of-robloxia-5-roblox-at-war-hack-game-hack. This lure aims to trick users into clicking through to potentially malicious websites. No scripts were extracted, but the embedded URLs and heuristic firings strongly indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/call-of-robloxia-5-roblox-at-war-hack-game-hack In PDF document text
    • https://www.wannon.tw/upload/files/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/free-roblox-animation-codes_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/btools-hack-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/robux-free-robux_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/real-coin-master-hacks_GM406889139.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/minecraft-mod-menu_GM479516143.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/coin-master-ios-hack_GM406889139.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/how-do-you-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/how-to-get-free-robux-on-xbox-one-2021_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/roblox-gift-card-online-free_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/how-to-get-obc-in-roblox-for-free-2021_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/how-to-get-free-robux-hard_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/roblox-free-executor_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/coin-master-date-and-time-hack_GM406889139.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/roblox-robux-giver-hack-download_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/free-20210-robux-download_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/free-robux-app-2021_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/free-robux-gift-card-codes-unused_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/pubg-uc-giveaway_GM1330123889.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/best-free-minecraft-server-hosting_GM479516143.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_off00002e5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E5A 22092 bytes
SHA-256: 30c355736d307ed5bcd8deaabe2342f8dda8263785333b4374c90a51a552d115
font_01_sfnt_off00005f3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F3B 19212 bytes
SHA-256: d591c9743ca5f9ff4e70ab8c1bd6aa76917c747d09f4bd0cf96a96a6a88d6f43

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