Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba5d905e7ee6a899…

MALICIOUS

PDF

33.2 KB Created: 2021-07-19 14:44:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a9c3f8d069f15810eaab33b45db2a168 SHA-1: d5b2140bf5d080b85b286bf76dcb0ffc6430d510 SHA-256: ba5d905e7ee6a89956862c1a0929aa0f894ae333233a3b10c5b6af4c32de756f
160 Risk Score

Malware Insights

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

The PDF contains multiple links to known malicious redirectors, specifically advertising free game hacks and generators. The document body and embedded link actions indicate a lure to download or access these 'free' services. The ML classifier also strongly flagged this PDF as malicious, supporting the conclusion that it is designed to lead users to potentially harmful content or further exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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/minecraft-dungeons-free-game-hack In PDF document text
    • https://javisintlmedia.com/images/minecraft-windows-10-edition-free_GM479516143.pdfIn PDF document text
    • https://javisintlmedia.com/images/get-free-robux-now_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-robux-master_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • https://javisintlmedia.com/images/how-to-create-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/hack-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_off00002e27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E27 22252 bytes
SHA-256: 32289d165e2d9e07e266f0dae1096933520eb71ffb9083b7c981a36e6087709a
font_01_sfnt_off00005f96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F96 18304 bytes
SHA-256: f6a577bc3f56294164eedaca4aa626844c61f0adb940d643d6f78e4abd993284