Malicious PDF — malware analysis report

Static analysis result for SHA-256 56de09e36e62c513…

MALICIOUS

PDF

36.0 KB Created: 2021-07-02 08:00:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6f10d306f9b9c5f3d2bcabcff21615ad SHA-1: 7e82cc87597dc942964b64d7d1a87e67bf04ce73 SHA-256: 56de09e36e62c5134786dea28965bf5aed56cc0ec7867e8552685ccb55cc70e4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of game hacks and free currency to trick users into clicking malicious links. The embedded URLs, such as http://netcdn.co/app/431946152/robux-hacks-no-human-verification-2021-game-hack, lead to known malicious redirector infrastructure. The document's content and structure strongly indicate a phishing or scam attempt designed to lead users to potentially harmful websites.

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/robux-hacks-no-human-verification-2021-game-hack In PDF document text
    • http://www.arichuna.com/images/files/coin-master-400-spin-link-today_GM406889139.pdfIn PDF document text
    • http://www.arichuna.com/images/files/wwwcoin-master-free-spincom_GM406889139.pdfIn PDF document text
    • http://www.arichuna.com/images/files/minecraft-education-free_GM479516143.pdfIn PDF document text
    • http://www.arichuna.com/images/files/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/how-to-vote-kick-on-free-draw-roblox_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/royale-high-roblox-cheats_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/coin-master-hack-spins-free_GM406889139.pdfIn PDF document text
    • http://www.arichuna.com/images/files/roblox-free-body_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/minecraft-bedrock-server-hosting-free_GM479516143.pdfIn PDF document text
    • http://www.arichuna.com/images/files/spin-coin_GM406889139.pdfIn PDF document text
    • http://www.arichuna.com/images/files/get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/how-create-roblox-hack-place_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/hacks-for-roblox-gods-of-elements_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/hacking-other-accounts-roblox_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/cute-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/free-coin-master-spins-and-coins-for-daily_GM406889139.pdfIn PDF document text
    • http://www.arichuna.com/images/files/roblox-how-to-hack-a-person_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/how-to-get-free-robux-by-joining-a-group_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_off00003308.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3308 22784 bytes
SHA-256: c457eee34f75cc1c39be8358e38a15d00a6a323803c21a4f30f05abfff2cf7ad
font_01_sfnt_off000065b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65B8 19740 bytes
SHA-256: 857a052353a38f9da21caa0b78d3d9dee11186003082bcee3fe3bcf20bd27774

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