Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d4d564e752d3255…

MALICIOUS

PDF

34.6 KB Created: 2021-06-25 18:07:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e7a8fde51e3a5f0fe4d3ef928852dbac SHA-1: b921bc3a6c6a6483b51198e4e1433ca9dbd0788b SHA-256: 7d4d564e752d325547da5a8427bb0cc32283223cca0859c6f164e3d8c603665e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of game hacks and free generators to entice users to click on embedded links. These links lead to a malicious redirector which, in turn, serves further malicious PDF documents. The primary goal appears to be directing users to potentially harmful content or further stages of a malicious campaign.

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/how-to-download-roblox-on-computer-hack-tool-game-hack In PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/claimrbx-free-robux_GM431946152.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/legit-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/coin-master-free-spins-and-coins-hack_GM406889139.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/free-tiktok-jelly-fruit_GM835599320.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/gamehunters-club-coin-master_GM406889139.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/coin-master-mod-apk-free-download-for-android_GM406889139.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/free-robux-hack-inspect-2021-instant_GM431946152.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/coin-master-hack-spins-free_GM406889139.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/coinmaster-spin-ml_GM406889139.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/roblox-catalog-heaven-best-weapons-free_GM431946152.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/how-to-get-the-zombie-animashon-for-free-in-roblox_GM431946152.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/minecraft-windows-10-hacked-client_GM479516143.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/minecraft-hacks-pc_GM479516143.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/how-to-get-1-million-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/com-roblox_GM431946152.pdfIn PDF document text
    • https://zd407.com/ocean_shop1/admin/upload/files/free-robux-codes-2021_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_off0000300c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x300C 21580 bytes
SHA-256: b9e18021f0b8f62531ffaed518a96ed055247d82e3cf6d796f8e5ec531f48afe
font_01_sfnt_off00005f82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F82 19840 bytes
SHA-256: 96e895d38935ea1b388697f7ba0bf6c51531a65343bdb3322b78aa9b0224af27

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