Malicious PDF — malware analysis report

Static analysis result for SHA-256 f262ac93ea4f58db…

MALICIOUS

PDF

26.5 KB Created: 2021-07-03 15:27:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a91ee9b27a44ab30590f55e8ebb265a0 SHA-1: 7fbf365ad5e68cd3c1505f9ad301682f081d36a8 SHA-256: f262ac93ea4f58dbad1be9f215468e7ecf5487de13545120d529ccc8b492c695
130 Risk Score

Malware Insights

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

The PDF file contains a lure for a 'Coin Master Game Hack' which includes a link to a known malicious redirector. This suggests the document is designed to trick users into visiting malicious websites, likely for further exploitation or to download additional malware. The embedded URL is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier clean score 0.0521

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-game-hack-link-game-hack In 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_off000014f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14F6 22248 bytes
SHA-256: 9eaa02713e6b8f82ea52dbec559f77372c8d7b5db6db6d7db0968cf641e70133
font_01_sfnt_off00004664.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4664 18264 bytes
SHA-256: c1c21b29a6afb4d06e4d6845aa9afd5500216469eff45eb2d027be7bd9c24dc5

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