Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c2d584c48f8a2e2…

MALICIOUS

PDF

34.4 KB Created: 2021-06-22 06:39:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8626c8d47bc1af554108e1f7fbb4d54c SHA-1: 3d32986e71804be26f3e884ce817b0f05402d203 SHA-256: 8c2d584c48f8a2e290e2d58cee01a09047d79e6fc9cbdb04643c263c22a63cd8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and game hack lures, indicating a phishing or malware distribution attempt. The document body and extracted URLs suggest a lure for game-related cheats or currency. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly suggest it's designed to redirect users to malicious 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-ninja-legends-free-vip-server-2021-game-hack In PDF document text
    • http://www.arichuna.com/images/files/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/tiktok-free-boost_GM835599320.pdfIn PDF document text
    • http://www.arichuna.com/images/files/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • http://www.arichuna.com/images/files/minecraft-hacked-client-112-2_GM479516143.pdfIn PDF document text
    • http://www.arichuna.com/images/files/free-robux-codes-to-type-in-chat_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://www.arichuna.com/images/files/coin-master-hack-no-root_GM406889139.pdfIn PDF document text
    • http://www.arichuna.com/images/files/robloxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/runinate-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/minecraft-mobile-free_GM479516143.pdfIn PDF document text
    • http://www.arichuna.com/images/files/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/www-coinmaster-com_GM406889139.pdfIn PDF document text
    • http://www.arichuna.com/images/files/minecraft-online-free-download_GM479516143.pdfIn PDF document text
    • http://www.arichuna.com/images/files/tiktok-for-free_GM835599320.pdfIn PDF document text
    • http://www.arichuna.com/images/files/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/nathorix-free-robux_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/roblox-free-templste-stream_GM431946152.pdfIn PDF document text
    • http://www.arichuna.com/images/files/free-robux-hack-mobile_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_off00002da2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DA2 22036 bytes
SHA-256: 6d0c5de3eb35baa2e027e7a845f5522403b3605c5e036cab59e4af887b3e28dc
font_01_sfnt_off00005e8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E8B 19956 bytes
SHA-256: e4c686b23af2007628f78b8af49086889dd245416b1abac0f5514e2c1d00eb62

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