Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e7e3ee64d2c0875…

MALICIOUS

PDF

36.6 KB Created: 2021-07-01 14:39:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b202300c7f5ec51f6605e38a6ad21b97 SHA-1: a7785f6d79a34fdea27f68014163bf6a3eb9523a SHA-256: 1e7e3ee64d2c087536a78cd393e093609af656b30462bb6383436d3b294d33eb
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirector infrastructure, specifically advertising 'game hacks' and 'generators'. The primary lure URL is http://netcdn.co/app/431946152/roblox-cheat-engine-change-price-game-hack, which is associated with a 'free generator / game hack' theme. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly suggest a malicious redirector workflow, likely intended to lead users to phishing or malware download sites.

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/roblox-cheat-engine-change-price-game-hack In PDF document text
    • https://www.wannon.tw/upload/files/no-scam-free-robux_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/roblox-free-download-online_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/legitimate-coin-master-free-spins-apk_GM406889139.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/xonnek-robux-hack_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/bb-hackes-for-roblox-ro-boxing_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/roblox-free-items-2021_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/free-minecraft-hosting_GM479516143.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/how-to-get-free-robux-on-mobile-device_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/roblox-ban_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/roblox-how-to-get-free-robux-no-hacks-2021_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/how-to-get-free-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/free-admin-logo-roblox_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/aimbot-hack-roblox-script_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/how-to-hack-into-roblox-that-work_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/coin-master-hack-with-lucky-patcher_GM406889139.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • https://www.roblox.com/.IIn 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_off00003893.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3893 22380 bytes
SHA-256: 04ac4330bd994920f40e0516b185e1ce925af69b4470f748942493ef6c5d2c87
font_01_sfnt_off00006a2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A2A 19028 bytes
SHA-256: f34e0824506164a8056fc1606d804d5c5fcabe41d18ca1ef9a4b6e09bda57fa8

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