Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce875bc559226d75…

MALICIOUS

PDF

33.9 KB Created: 2021-06-26 01:18:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 672d0d87cd8a204309751b7773189e3f SHA-1: d1f9400f73d304d8a55dffe116f0ba9e6800d001 SHA-256: ce875bc559226d75ec0bc98d9a636a8994f5ee15307dc4bd97a7a5c8677f6e87
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 and hacks, directing users to a known malicious redirector URL. The ML classifier strongly indicates maliciousness, and the presence of a download button lure reinforces the deceptive nature of the document. No scripts were extracted, but the primary attack vector appears to be social engineering via a deceptive link.

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/free-robux-today-com-game-hack In PDF document text
    • http://library.unissula.ac.id/fk//repository/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/clean-master-coins-hack_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/dominus-roblox-free_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/free-spin-coin_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/how-to-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/roblox-demon_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/coin-master-card-hack-2021_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/how-to-get-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/best-free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/how-to-get-free-robux-fast_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/cheats-on-skyscraper-tyocoon-2-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/fort-wars-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/minecraft-logo-maker-free_GM479516143.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/why-pokemon-go-free-download_GM1094591345.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/free-fedora-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/hacked-client-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/roblox-case-clicker-cheats_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/how-to-get-free-chat-in-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 2

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_off00002f65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F65 21552 bytes
SHA-256: 404e64c23b603381408c47550aa65fcaa2944bc4d152c8941e7e7acae9f66aeb
font_01_sfnt_off00005ea6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EA6 19328 bytes
SHA-256: 3393a24b784fd4c459af64c13a6733a2ed8fa1b3ae08ebafd735f9a07e1dc812

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