Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5da78ba09202dbd…

MALICIOUS

PDF

44.5 KB Created: 2021-05-12 22:43:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9696fe893683e4a60f44c38dfdbb336a SHA-1: bdc13c0a7142105406b871f3db9e45393b8127f4 SHA-256: e5da78ba09202dbd8ab61f3c00769b6b4a9f38c75f9dadebfdb5770302a8ae07
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links pointing to known malicious redirector infrastructure, specifically targeting users with lures for game hacks and cheats. The presence of a visual download button further reinforces the social engineering aspect. Although no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a malicious intent to redirect users to download potentially harmful applications.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

Heuristics 3

  • 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-3.5-16-hack-apk-game-hack In PDF document text
    • http://adravietnam.org/images/minecraft-hacked-client-bedrock_GM479516143.pdfIn PDF document text
    • http://adravietnam.org/images/coin-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://adravietnam.org/images/robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://www.adravietnam.org/images/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://www.adravietnam.org/images/coin-master-hack-apk-35-18_GM406889139.pdfIn PDF document text
    • http://adravietnam.org/images/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • http://www.adravietnam.org/images/free-minecraft-domain_GM479516143.pdfIn PDF document text
    • http://www.adravietnam.org/images/minecraft-xbox-one-free_GM479516143.pdfIn PDF document text
    • http://adravietnam.org/images/coin-master-hack-unlimited-spins-apk_GM406889139.pdfIn PDF document text
    • http://adravietnam.org/images/free-spin-coin-master-app-download_GM406889139.pdfIn PDF document text
    • http://www.adravietnam.org/images/optifine-pe_GM479516143.pdfIn PDF document text
    • http://www.adravietnam.org/images/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • http://www.adravietnam.org/images/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
    • http://www.adravietnam.org/images/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • http://adravietnam.org/images/microsoft-rewards-roblox_GM431946152.pdfIn PDF document text
    • http://adravietnam.org/images/coin-master-gold-cards-hack_GM406889139.pdfIn PDF document text
    • http://adravietnam.org/images/coin-master-free-cards-2021_GM406889139.pdfIn PDF document text
    • http://adravietnam.org/images/make-free-robux_GM431946152.pdfIn PDF document text
    • http://adravietnam.org/images/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • http://www.adravietnam.org/images/free-robux-groups-2021_GM431946152.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_off0000487d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x487D 25068 bytes
SHA-256: aff90649a9fca0626ceefdd8ed770aee7506a1f3c5a11d882c8a992d2c1ad690
font_01_sfnt_off000080c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80C9 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00008a7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A7B 18540 bytes
SHA-256: 6c978da1fc6b9e3efc1f92d2c332408d8a425ac17fa3ac6d527894c965db015a

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