Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e061df1c6c55e55…

MALICIOUS

PDF

35.8 KB Created: 2021-07-09 03:23:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d4dea3fcf66cfe3658234906ded7b18b SHA-1: 137d38962ff46f3a867d77db858210b463ae4b0e SHA-256: 4e061df1c6c55e55f83e7835aa19d2b442249b885353d8e6feb590fecc184f2c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to a known malicious redirector infrastructure at http://netcdn.tw/app/406889139/coin-master-daily-free-spins-link-app-download-game-hack. The document body and embedded links explicitly promise 'free generator', 'game hack', and 'free robux', indicating a lure for users seeking cheats or in-game currency. The presence of multiple redirector links suggests an attempt to funnel users to potentially malicious sites for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/coin-master-daily-free-spins-link-app-download-game-hack In PDF document text
    • https://elearning.man1sleman.sch.id/__statics/gudangsoal/files/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.man1sleman.sch.id/__statics/gudangsoal/files/roblox-hacker-2021-download_GM431946152.pdfIn PDF document text
    • https://elearning.man1sleman.sch.id/__statics/gudangsoal/files/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://elearning.man1sleman.sch.id/__statics/gudangsoal/files/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man1sleman.sch.id/__statics/gudangsoal/files/master-coin-hack_GM406889139.pdfIn PDF document text
    • https://elearning.man1sleman.sch.id/__statics/gudangsoal/files/free-level-7-script-executor-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.man1sleman.sch.id/__statics/gudangsoal/files/cheat-roblox-freedraw_GM431946152.pdfIn PDF document text
    • https://elearning.man1sleman.sch.id/__statics/gudangsoal/files/robux-gratis_GM431946152.pdfIn PDF document text
    • https://elearning.man1sleman.sch.id/__statics/gudangsoal/files/free-minecraft-account-and-password-generator_GM479516143.pdfIn PDF document text
    • https://elearning.man1sleman.sch.id/__statics/gudangsoal/files/free-robux-watch-add-to-get-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man1sleman.sch.id/__statics/gudangsoal/files/hack-coin-master-using-pc_GM406889139.pdfIn PDF document text
    • https://elearning.man1sleman.sch.id/__statics/gudangsoal/files/free-robux-hack_GM431946152.pdfIn PDF document text
    • https://elearning.man1sleman.sch.id/__statics/gudangsoal/files/coin-master-hack-no-download_GM406889139.pdfIn PDF document text
    • https://elearning.man1sleman.sch.id/__statics/gudangsoal/files/free-2021-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man1sleman.sch.id/__statics/gudangsoal/files/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
    • https://elearning.man1sleman.sch.id/__statics/gudangsoal/files/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://elearning.man1sleman.sch.id/__statics/gudangsoal/files/minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • https://elearning.man1sleman.sch.id/__statics/gudangsoal/files/how-to-get-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.man1sleman.sch.id/__statics/gudangsoal/files/minecraft-hacked-client-bedrock_GM479516143.pdfIn PDF document text
    • https://elearning.man1sleman.sch.id/__statics/gudangsoal/files/coin-master-free-spins-usa-2021_GM406889139.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_off0000346e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x346E 22532 bytes
SHA-256: e9402db7a25e82e6aa4449ca147ca1d230401b3bde03a36cf7a1610150ac8e85
font_01_sfnt_off000066b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66B5 19104 bytes
SHA-256: 8b72434a58502bdc53247ed689e807b70a7c32e8818b0cd2897b08e7e167a8b3

Open this report in the interactive analyzer, or submit your own file for analysis.