Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad45debfac44f979…

MALICIOUS

PDF

32.7 KB Created: 2021-07-19 02:59:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6585a5356c595e1c1451792f6d4f94bf SHA-1: 6fd711d15eb53d75e6fdfb80cb2e8bb946832e8e SHA-256: ad45debfac44f97970bd13acde77327b1aba9de32be4e206aacc560f5f4f77df
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, specifically advertising "free generator / game hack" lures for popular games. The primary URL http://netcdn.tw/app/406889139/free-spin-link-for-coin-master-game-game-hack is identified as a malicious redirector. The document body and embedded URLs suggest a social engineering tactic to trick users into visiting these sites, likely for further malware delivery or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9933

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/free-spin-link-for-coin-master-game-game-hack In PDF document text
    • http://www.eltisstudio.sk/images/how-to-get-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
    • http://www.eltisstudio.sk/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.eltisstudio.sk/images/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://www.eltisstudio.sk/images/minecraft-free-download-chromebook_GM479516143.pdfIn PDF document text
    • http://www.eltisstudio.sk/images/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://eltisstudio.sk/images/roblox-hacked-com-2021_GM431946152.pdfIn PDF document text
    • http://www.eltisstudio.sk/images/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
    • http://www.eltisstudio.sk/images/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
    • http://www.eltisstudio.sk/images/codes-to-get-free-robux_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
font_00_sfnt_off00002a0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A0E 23032 bytes
SHA-256: ee929b4a0a3f99d1e5077e3b7a0754dabd64327837c6e63c0c9971feef9a2429
font_01_sfnt_off00005dc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DC9 18316 bytes
SHA-256: 4ad106dc66915d7a7c54c506e35e2e74cb7406920644c521a55874c4c44ea7c2

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