Malicious PDF — malware analysis report

Static analysis result for SHA-256 666f2a0a09c79f84…

MALICIOUS

PDF

44.7 KB Created: 2021-06-03 05:24:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 220ec4b6c78d407664fdbb1a4e53523d SHA-1: c9644637408dc525b185310bb4cc3d866e97148b SHA-256: 666f2a0a09c79f8481754e8df05adb7a63d9573bfc446d4d6b556a5a5063f551
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and lures users with promises of game hacks and free generators. The document body, though partially corrupted, contains references to 'How To Make A Minecraft Client' and includes the malicious URL, reinforcing the lure. No scripts were extracted, but the presence of malicious links indicates an attempt to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/479516143/how-to-make-a-minecraft-client-game-hack In PDF document text
    • http://katalog.ireyogya.org/repository/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/simplysarc_GM479516143.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-hack-site_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/what-is-a-minecraft-client_GM479516143.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-robux-just-click_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/spin-and-coin_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/how-to-get-minecraft-for-free-on-ps4_GM479516143.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/robux-websites-that-work_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-spin-today-coin-master_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-hacked-version-download-apk_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-free-spins-link-today-twitter_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-robux-only-username_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-unlimited-spins_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-ban_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/how-to-get-free-gamepasses-on-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-robux-reddit_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/how-to-get-free-robux-on-pc_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_off00005564.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5564 24784 bytes
SHA-256: fcf5df7e006d4d54c001c83a0af6f4e3cbbb63eea609324e45f069ae35ccf13c
font_01_sfnt_off00008cfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CFB 18116 bytes
SHA-256: 56ece9bcb07882a6659c5f7e1ce038c62729a3d0bc69e44cc409015ae3a9828f

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