Malicious PDF — malware analysis report

Static analysis result for SHA-256 14597aa43b16aa63…

MALICIOUS

PDF

43.1 KB Created: 2021-05-16 03:08:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 48d8ce071d36bfdb211d1df41b5625d1 SHA-1: 01dbba7abb4429c3b85ebacfa64788c4d6fa1a38 SHA-256: 14597aa43b16aa637fb8fabc8db40dcc18c72d5f0b9cf6d9c2e4a03a07284d72
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to known malicious infrastructure, specifically promoting game hacks and generators. The document body and embedded links suggest a lure for users seeking cheats for games like Coin Master and Roblox. The primary malicious activity observed is the redirection to a malicious URL, likely to deliver a secondary payload or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/coin-master-mod-apk-free-download-for-android-game-hack In PDF document text
    • http://hcberg.com/images/how-to-cheat-in-roblox_GM431946152.pdfIn PDF document text
    • http://hcberg.com/images/coin-master-pc-hack-tool_GM406889139.pdfIn PDF document text
    • http://hcberg.com/images/apps-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://hcberg.com/images/haktuts-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://hcberg.com/images/free-minecraft-gift-codes_GM479516143.pdfIn PDF document text
    • http://hcberg.com/images/coin-master-hack-without-verification-for-iphone_GM406889139.pdfIn PDF document text
    • http://hcberg.com/images/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://hcberg.com/images/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://hcberg.com/images/how-to-hack-coin-master-root_GM406889139.pdfIn PDF document text
    • http://hcberg.com/images/coin-master-level-3_GM406889139.pdfIn PDF document text
    • http://hcberg.com/images/how-do-you-install-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://hcberg.com/images/how-to-gift-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://hcberg.com/images/free-downloads-for-coin-master-daily-rewards_GM406889139.pdfIn PDF document text
    • http://hcberg.com/images/free-minecraft-java-server_GM479516143.pdfIn PDF document text
    • http://hcberg.com/images/roblox-skin-free_GM431946152.pdfIn PDF document text
    • http://hcberg.com/images/cm-free-spin-link-today_GM406889139.pdfIn PDF document text
    • http://hcberg.com/images/coin-master-hacks-to-get-spins_GM406889139.pdfIn PDF document text
    • http://hcberg.com/images/roblox-script-hack_GM431946152.pdfIn PDF document text
    • http://hcberg.com/images/how-to-hack-roblox-passwords_GM431946152.pdfIn PDF document text
    • http://hcberg.com/images/coinmaster-gps-user-review-coinmaster-coin-master-hack-pagedemo-index_GM406889139.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_off00004b8b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B8B 25556 bytes
SHA-256: c19a18420b87bb34ef3443903e6b5aea5e061cad6b9f8b85a89d812145cfa34d
font_01_sfnt_off00008544.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8544 18636 bytes
SHA-256: 430b8c6468b29bcb8a063019981b9f21e2cad4554a01abe6c0aff1c8414741f1

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