Malicious PDF — malware analysis report

Static analysis result for SHA-256 39f0536c66c55415…

MALICIOUS

PDF

36.0 KB Created: 2021-06-27 13:52:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: de3652c9998e4657e5a94e74b24e3b6c SHA-1: 141801f304fac6559f4f806af5620529180621fc SHA-256: 39f0536c66c5541539b356c91903f36a65709b5cb028817a46d94a8b6f83a5aa
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a lure for free game currency, directing users to a malicious redirector URL. This suggests an attempt to trick users into visiting potentially harmful sites, likely for further exploitation or credential harvesting. No scripts were extracted, but the PDF structure and embedded links indicate a malicious intent to redirect users to malicious infrastructure.

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.co/app/431946152/hoe-to-get-free-robux-no-hacking-apps-or-ispect-game-hack In PDF document text
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/descargar-hack-para-phantom-forces-roblox_GM431946152.pdfIn PDF document text
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/galaxy-roblox-clothes-free_GM431946152.pdfIn PDF document text
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/best-free-full-lua-and-lua-c-roblox-exploit_GM431946152.pdfIn PDF document text
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/coin-master-blogspot-free-spins_GM406889139.pdfIn PDF document text
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/roblox-premium-free_GM431946152.pdfIn PDF document text
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/coin-master-com_GM406889139.pdfIn PDF document text
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/free-robux-link_GM431946152.pdfIn PDF document text
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/minecraft-apk-114-4_GM479516143.pdfIn PDF document text
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/free-old-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/can-you-give-me-robux_GM431946152.pdfIn PDF document text
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/minecraft-launcher-download-free_GM479516143.pdfIn PDF document text
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/roblox-free-exploits_GM431946152.pdfIn PDF document text
    • https://e-learning.man5crbn.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003356.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3356 23084 bytes
SHA-256: 1670b0c7a9566bb293e69213ed8b442b28b66cef8c151689e32144854986242b
font_01_sfnt_off00006741.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6741 19288 bytes
SHA-256: f4bae107989e16bf4c364338d215921cc1fbbf5262c94c37b4f49b1430e721a9

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