Malicious PDF — malware analysis report

Static analysis result for SHA-256 76c95330c35fe140…

MALICIOUS

PDF

32.1 KB Created: 2021-07-19 21:24:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c5391ecdb4e8d6789f375f44cdda4c06 SHA-1: 04b1657931a4180c31e39895d9c55afd78daf6e9 SHA-256: 76c95330c35fe140f03c9b567209ee4d3cf5a413d6b7d4efdbdb914f775fd2fb
160 Risk Score

Malware Insights

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

This PDF document contains multiple links to known malicious redirectors and lures users with promises of 'free generators' or 'game hacks'. The primary malicious link identified is http://netcdn.tw/app/835599320/free-tiktok-likes-2021-game-hack, which is associated with a high-risk score. The document body also contains numerous other links to potentially malicious PDF files hosted on businessmart.ro, suggesting a broader campaign to distribute malware or phishing content. No scripts were extracted, but the embedded links and redirector heuristics strongly indicate a malicious intent to trick users into visiting harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

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/835599320/free-tiktok-likes-2021-game-hack In PDF document text
    • http://businessmart.ro/images/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://businessmart.ro/images/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • http://businessmart.ro/images/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • http://businessmart.ro/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://businessmart.ro/images/free-robux-scams_GM431946152.pdfIn PDF document text
    • http://businessmart.ro/images/free-minecraft-accounts-2021_GM479516143.pdfIn PDF document text
    • http://businessmart.ro/images/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://businessmart.ro/images/how-to-get-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://businessmart.ro/images/how-to-get-minecraft-pe-for-free_GM479516143.pdfIn PDF document text
    • http://businessmart.ro/images/rblx-city-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_off00002938.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2938 23028 bytes
SHA-256: 4be9babcd91df249a88566b19596f6a0a3d797d38255888f9e08bf3fcfe0429b
font_01_sfnt_off00005c93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C93 17860 bytes
SHA-256: d258708121255352d461bbf2ed049085888c1bd8d2af1a740053385592fd2202

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