Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ffe0e6ee352478d…

MALICIOUS

PDF

35.7 KB Created: 2021-07-06 04:18:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e58e3296fa129fe9ab71886ad35b3fac SHA-1: f8bc700f46f364eb6bdbab8b7055b8871cbe87e1 SHA-256: 4ffe0e6ee352478dc29ab46d5310362591edc606b0d75ad3aa1721fed43b08fe
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting game hacks and generators. The primary lure appears to be related to 'Coin Master' and 'Roblox' cheats. The document body and embedded URLs strongly suggest a phishing or scam attempt designed to trick users into visiting potentially harmful 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.tw/app/406889139/coin-master-hack-apk-july-29-game-hack In PDF document text
    • http://library.acehresearch.org/repository/hacks-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://library.acehresearch.org/repository/coin-master-hacks-to-get-spins_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/coin-master-free-download-app_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-500-robux_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/reversal-hack-roblox_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/roblox-ben-10-free-download_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-spin-coin_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-non-hack-robux-generators_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/roblox-robux-hack-proof_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/coin-master-hack-without-verification-for-iphone_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/how-to-hack-roblox-on-mac-2021_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-roblox-gift-card_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/coinmasterhack-club_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/roblox-got-talent-hack_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/roblox-redeem-code-free_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-coin-and-spin-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/coin-master-spin-hack-link_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/minecraft-bedrock-free-download_GM479516143.pdfIn PDF document text
    • http://library.acehresearch.org/repository/minecraft-pc-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003312.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3312 22864 bytes
SHA-256: 4155831bdf53821d3af222fbb425196e2c4f440b23e19c367293fc037b55f27f
font_01_sfnt_off00006675.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6675 19028 bytes
SHA-256: 3ad37a86976cb2f68fb9487c91401566e7b5c76794aeed29845587ca95c5dc1f

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