Malicious PDF — malware analysis report

Static analysis result for SHA-256 02cf9c1288f2ccc4…

MALICIOUS

PDF

44.8 KB Created: 2021-06-08 22:54:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: fb0dec7332e1c5b2ba383a0c8187e59d SHA-1: 51c763845c69f875946785adfce896276c49ac89 SHA-256: 02cf9c1288f2ccc4ab3343a960274cc60c1682072e6bccc8aa944e4d22aa02dc
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains embedded links that redirect to a URL associated with game cheats, identified as a malicious redirector. The presence of a visual download button and the ML classifier's high confidence score further indicate malicious intent. The document likely serves as a lure to download a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.tw/app/431946152/run_this_roblox_cheat-game-hack In PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/coin-master-daily_GM406889139.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/pokemon-go-free-levels_GM1094591345.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/free-robux-games_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/free-robux-cheat-download_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/robux-win_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/coin-master-unlimited-spin-and-coin-hack_GM406889139.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/free-coins-coin-master-blog_GM406889139.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/how-to-get-100-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/roblox-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/100-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/link-for-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/minecraft-windows-10-hacked-client_GM479516143.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/coin-master-heaven-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/how-do-you-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/free-roblox-gift-card_GM431946152.pdfIn PDF document text
    • http://pengolahan.perpus.wima.ac.id/repository/how-to-hack-roblox-accounts-2021-easy_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
stream_004_off0000500e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x500E 25920 bytes
SHA-256: 0f78c2504c0f34749bda3d4e2b60ec56c7477a9c68671705ab22df551b7d5ee7
font_01_sfnt_off00008bcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BCC 18576 bytes
SHA-256: a340e85f124c7e170cf7f4510892e76fc4f04a3c161d7c28589d1f018f6602b3

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