Malicious PDF — malware analysis report

Static analysis result for SHA-256 2dccdc1fc135e2f0…

MALICIOUS

PDF

45.9 KB Created: 2021-05-13 07:30:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9558215676626e341d5c7108f77e5162 SHA-1: d2c4048f97c7258809aadac03542405c8f85e1d8 SHA-256: 2dccdc1fc135e2f0f2c5ae6f2e72fd69965ef2ff8987ee26e2e81baef86cf678
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links that redirect to malicious infrastructure, specifically advertising free game generators and hacks. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the embedded links and the nature of the lures suggest an attempt to drive users to exploit kits or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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-free-daily-spins-link-game-hack In PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/free-robux-no-downloading-apps_GM431946152.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/coin-master-hack-fast_GM406889139.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/coinmaster-com_GM406889139.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/coin-master-gold-cards-hack_GM406889139.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/coin-master-free-download-app_GM406889139.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/coin-master-hack-2021-no-human-verification_GM406889139.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/coin-master-fan-page-facebook_GM406889139.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/free-robux-without-survey_GM431946152.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/cm-free-spins_GM406889139.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/easy-robux-hack_GM431946152.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/how-to-get-minecraft-coins-for-free_GM479516143.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/toolbox-for-mcpe_GM479516143.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/free-robux-with-no-human-verification_GM431946152.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/hack-coin-master-343-apk_GM406889139.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/client-minecraft_GM479516143.pdfIn PDF document text
    • https://e-learning-mi-nurussaadah.com/__statics/gudangsoal/files/spin-free-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004d28.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D28 25160 bytes
SHA-256: 9e25479215764d1338a69169e781887de7205c32203884114831c9150f67aaa4
font_01_sfnt_off000085d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85D2 18476 bytes
SHA-256: 219409e4a96e727ac7d03afbf10b928993c8ec078f24206d8d8724722cb954a1
font_02_sfnt_off0000a86f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA86F 3264 bytes
SHA-256: e32c06502c11b52acb5e814091c5fdbffd1e2a904ac7a9cfb8b5b180bd139088

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