Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c265b970d56ae5e…

MALICIOUS

PDF

42.4 KB Created: 2021-05-17 07:31:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 990604b92ff26a0c50d2bebb5d1008b7 SHA-1: dabb616a63d72bf967cf43c7750b9fa7afb10159 SHA-256: 5c265b970d56ae5e7f28f3bc7d4c4442d5c29d06f3b60c8a6869ed5031593846
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users into clicking on them, disguised as generators for game currency or hacks. The primary malicious link redirects to infrastructure known for distributing malware. The document body and embedded URLs suggest a phishing or scam attempt, likely leading to further malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/406889139/how-to-get-free-spins-on-coin-master-hack-game-hack In PDF document text
    • http://www.manchieu.vn/upload/editor/files/coin-master-spin-link-today-free_GM406889139.pdfIn PDF document text
    • http://www.manchieu.vn/upload/editor/files/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://www.manchieu.vn/upload/editor/files/can-i-have-robux_GM431946152.pdfIn PDF document text
    • http://www.manchieu.vn/upload/editor/files/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.manchieu.vn/upload/editor/files/coin-master-rewards-free-spins_GM406889139.pdfIn PDF document text
    • http://www.manchieu.vn/upload/editor/files/minecraft-hack-client-download_GM479516143.pdfIn PDF document text
    • http://www.manchieu.vn/upload/editor/files/coin-master-free-link-facebook_GM406889139.pdfIn PDF document text
    • http://www.manchieu.vn/upload/editor/files/how-to-log-out-of-coin-master_GM406889139.pdfIn PDF document text
    • http://www.manchieu.vn/upload/editor/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://www.manchieu.vn/upload/editor/files/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://www.manchieu.vn/upload/editor/files/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.manchieu.vn/upload/editor/files/coin-master-exchange-40-free-spins_GM406889139.pdfIn PDF document text
    • http://www.manchieu.vn/upload/editor/files/minecraft-hacks-list_GM479516143.pdfIn PDF document text
    • http://www.manchieu.vn/upload/editor/files/coin-master-online-hack-tool_GM406889139.pdfIn PDF document text
    • http://www.manchieu.vn/upload/editor/files/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://www.manchieu.vn/upload/editor/files/coin-master-hack-ios-no-jailbreak_GM406889139.pdfIn PDF document text
    • http://www.manchieu.vn/upload/editor/files/coin-master-update-2021_GM406889139.pdfIn PDF document text
    • http://www.manchieu.vn/upload/editor/files/coin-master-collect-today-free-spin_GM406889139.pdfIn PDF document text
    • http://www.manchieu.vn/upload/editor/files/jailbreak-script_GM431946152.pdfIn PDF document text
    • http://www.manchieu.vn/upload/editor/files/free-robux-legit_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
stream_003_off00004c86.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C86 24268 bytes
SHA-256: ccde4a2ad54708a3f7b4aa6180643418d690e86e5097e6ef88c929ba160b7c05
font_01_sfnt_off000083c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83C8 18220 bytes
SHA-256: b9590c860e10d8f9c020beecb5b6ba48e280dd1fb7308b582b518c7b33ada2d7

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