Malicious PDF — malware analysis report

Static analysis result for SHA-256 08af5e916b110e0c…

MALICIOUS

PDF

42.8 KB Created: 2021-05-14 17:04:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3234fdfcc5d52e357d4f89c595337255 SHA-1: 3731cd07a5522f4912c26dde8fd22ffd11089107 SHA-256: 08af5e916b110e0c2ff23a3aabc649f301e557be0dae98813f7b2893bdc4d824
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically advertising "free generator / game hack" content. The document body and embedded URLs suggest a lure for game-related cheats, likely to lead users to a malicious site or download. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/daily-coin-master-free-link-game-hack In PDF document text
    • http://jpschoolnewdelhi.com/uploaded_files/userfiles/files/free-robux-accounts-2021_GM431946152.pdfIn PDF document text
    • http://jpschoolnewdelhi.com/uploaded_files/userfiles/files/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://jpschoolnewdelhi.com/uploaded_files/userfiles/files/hack-coin-master-download_GM406889139.pdfIn PDF document text
    • http://jpschoolnewdelhi.com/uploaded_files/userfiles/files/coin-master-hack-pro_GM406889139.pdfIn PDF document text
    • http://jpschoolnewdelhi.com/uploaded_files/userfiles/files/legit-coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://jpschoolnewdelhi.com/uploaded_files/userfiles/files/coin-master-hack-unlimited-spins-and-coins-cheats_GM406889139.pdfIn PDF document text
    • http://jpschoolnewdelhi.com/uploaded_files/userfiles/files/free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://jpschoolnewdelhi.com/uploaded_files/userfiles/files/coin-master-free-daily-spins-2021_GM406889139.pdfIn PDF document text
    • http://jpschoolnewdelhi.com/uploaded_files/userfiles/files/coin-master-free-100-spin_GM406889139.pdfIn PDF document text
    • http://jpschoolnewdelhi.com/uploaded_files/userfiles/files/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://jpschoolnewdelhi.com/uploaded_files/userfiles/files/coin-master-free-spin-app-iphone_GM406889139.pdfIn PDF document text
    • http://jpschoolnewdelhi.com/uploaded_files/userfiles/files/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
    • http://jpschoolnewdelhi.com/uploaded_files/userfiles/files/robux-today_GM431946152.pdfIn PDF document text
    • http://jpschoolnewdelhi.com/uploaded_files/userfiles/files/coin-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://jpschoolnewdelhi.com/uploaded_files/userfiles/files/wurst-mc_GM479516143.pdfIn PDF document text
    • http://jpschoolnewdelhi.com/uploaded_files/userfiles/files/minecraft-free-download-chromebook_GM479516143.pdfIn PDF document text
    • http://jpschoolnewdelhi.com/uploaded_files/userfiles/files/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
    • http://jpschoolnewdelhi.com/uploaded_files/userfiles/files/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • http://jpschoolnewdelhi.com/uploaded_files/userfiles/files/how-to-get-minecraft-for-free-on-android_GM479516143.pdfIn PDF document text
    • http://jpschoolnewdelhi.com/uploaded_files/userfiles/files/free-robux-kid-friendly_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_003_off00004d23.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D23 24660 bytes
SHA-256: 105eaab838a0990c5acbef0643617b09453f804b764f0dfc6eece1422256d46d
font_01_sfnt_off000084f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84F9 18304 bytes
SHA-256: b7b85e45b2e0fba94320617ceb2ece5ed3936c26fbb4efc42dbfdfbb85e9cc4e

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