Malicious PDF — malware analysis report

Static analysis result for SHA-256 db82739876ca2a8c…

MALICIOUS

PDF

28.8 KB Created: 2021-05-10 19:13:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 96051fc0faa96c71b6f763175b018edc SHA-1: b1689fdf3c4e09537f5333ffa384b9da1a1eb399 SHA-256: db82739876ca2a8cd68c2e76442a4c919a6d75e43e1482ce69e671ee52e18b6d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and a document body that explicitly advertises 'how to get robux easy' and 'coin master hack software'. The ML classifier also flagged this PDF as malicious. The presence of these lures suggests the document is designed to trick users into visiting malicious sites, likely to download further malware or engage in credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9747

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/431946152/how-to-get-robux-easy-game-hack In PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/coin-master-hack-software_GM406889139.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/50-000-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/free-spin-card-exchange-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/roblox-online-free_GM431946152.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/how-to-hack-coin-master-using-es-filer_GM406889139.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/coin-master-game-free-spin-download_GM406889139.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/mcpe-download_GM479516143.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/how-do-you-hack-minecraft_GM479516143.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/hack-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/coin-master-free-spin-2912-2021_GM406889139.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/hackear-coin-master-sin-verificacion_GM406889139.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/how-to-get-free-skins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/how-to-get-800-robux-for-free_GM431946152.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/free-robux-codes-2021-real_GM431946152.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/coin-master-free-spain_GM406889139.pdfIn PDF document text
    • https://elearning.maalhidayah.com/__statics/gudangsoal/files/can-you-still-get-minecraft-windows-10-for-free_GM479516143.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_off000022e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22E1 19780 bytes
SHA-256: 92a0a05ec101cd310d82426c7e4daa25bc044029224ff3fb8c6893fa22c17272
font_01_sfnt_off00004cca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CCA 18528 bytes
SHA-256: b9e2aa841985fb83527df95ccd87a01b1af2ca35417b0d42f05b7d7a63821dbf

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