Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ec5e3ab3fac9ca0…

MALICIOUS

PDF

45.5 KB Created: 2021-06-08 12:46:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d827bbe694e1f56f14c86e42c254a3ab SHA-1: 262510c59c387e7e226da40945582040710cd340 SHA-256: 0ec5e3ab3fac9ca0efa58ca88223fa1a7f621a7dde962f3c8a4e6e8f130e51cb
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector infrastructure, disguised as a 'free generator / game hack'. The document body, though heavily obfuscated, contains references to 'free roblox clothes' and the malicious URL. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.tw/app/431946152/how-to-get-free-roblox-clothes-no-bc-game-hack In PDF document text
    • http://www.zdravazena.sk/images/minecraft-windows-10-free-with-java_GM479516143.pdfIn PDF document text
    • http://www.zdravazena.sk/images/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • http://www.zdravazena.sk/images/how-to-get-minecraft-for-free-ios_GM479516143.pdfIn PDF document text
    • http://www.zdravazena.sk/images/free-views-tiktok_GM835599320.pdfIn PDF document text
    • http://www.zdravazena.sk/images/how-to-download-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • http://www.zdravazena.sk/images/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://www.zdravazena.sk/images/claim-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://www.zdravazena.sk/images/free-robux-gift-card-generator_GM431946152.pdfIn PDF document text
    • http://www.zdravazena.sk/images/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://www.zdravazena.sk/images/free-minecraft-survival-server_GM479516143.pdfIn PDF document text
    • http://www.zdravazena.sk/images/free-robux-master_GM431946152.pdfIn PDF document text
    • http://www.zdravazena.sk/images/how-to-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://www.zdravazena.sk/images/coin-master-hack-tuts_GM406889139.pdfIn PDF document text
    • http://www.zdravazena.sk/images/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • http://www.zdravazena.sk/images/how-to-hack-a-minecraft-server_GM479516143.pdfIn PDF document text
    • http://www.zdravazena.sk/images/roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://www.zdravazena.sk/images/minecraft-xbox-one-free_GM479516143.pdfIn PDF document text
    • http://www.zdravazena.sk/images/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://www.zdravazena.sk/images/roblox-games-with-free-radio_GM431946152.pdfIn PDF document text
    • http://www.zdravazena.sk/images/free-robux-live_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_off0000505f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x505F 27968 bytes
SHA-256: 497a97019904b1dbfc0b3755a08221f89c19009ee8b3235d2216575be8ebd5b3
font_01_sfnt_off00008f16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F16 18384 bytes
SHA-256: a0476c332bec02acb16b753560679bca692543bc4ad86ff99a37f5b961ac65d3

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