Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb4328cb75cdd156…

MALICIOUS

PDF

35.2 KB Created: 2021-07-04 10:48:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c4f4988a3976982f37e06eb04fa57d0c SHA-1: 5b117f730f7efe5397986742f5c210ade60abb4a SHA-256: eb4328cb75cdd1563491eb2d0c331b833bae49b1033b8c21864763311c721457
160 Risk Score

Malware Insights

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

The PDF document contains multiple links to known malicious redirectors, specifically advertising free game hacks and currency for popular games like Minecraft and Roblox. The heuristic firings indicate that the document is designed as a lure to trick users into clicking these links, likely leading to malware downloads or further phishing attempts. No scripts were extracted, but the presence of embedded URLs and the nature of the lures strongly suggest a malicious intent to exploit user interest in free in-game items.

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.tw/app/479516143/download-minecraft-bedrock-game-hack In PDF document text
    • https://adventureglaciertreks.com/userfiles/files/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/free-coin-spin_GM406889139.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/free-2021-robux_GM431946152.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/roblox-devil_GM431946152.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/roblox-free-catalog-items-hack_GM431946152.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/minecraft-bedrock-server-hosting-free_GM479516143.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/roblox-meep-city-money-hack_GM431946152.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/get-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/roblox-com-free-play_GM431946152.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/campingvip-server-hacks-roblox_GM431946152.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/coin-master-daily-gifts_GM406889139.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/coin-master-free-download_GM406889139.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/roblox-hacks-com_GM431946152.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/free-minecraft-skins_GM479516143.pdfIn PDF document text
    • https://adventureglaciertreks.com/userfiles/files/robux-hacks-pc_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_off00003350.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3350 22424 bytes
SHA-256: d2c5d01ea2d7c6035f829c4a1b0396811d460bb779678108b039a2d88f4123c3
font_01_sfnt_off00006512.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6512 18964 bytes
SHA-256: d365ba070fe6fd3fa6ed3fff7f0487a6e267f0f297f09f268bd410be9b6223ff

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