Malicious PDF — malware analysis report

Static analysis result for SHA-256 849b77bb607a2485…

MALICIOUS

PDF

32.7 KB Created: 2021-07-19 13:54:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 93c86df1a034d1b872a8138c1b08380a SHA-1: e53a9444b49366c36b081117df4f369e3a6db340 SHA-256: 849b77bb607a248514c3f75c6572b8dfe9e275f049e1529f173718fdce7b845a
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, disguised as 'free generator' or 'game hack' lures. The document body explicitly mentions 'Free Minecraft Website' and includes a call to action to access a generator. While no scripts were extracted, the presence of malicious redirector links and the lure theme strongly suggest the document is designed to lead users to malicious websites, likely for further exploitation or phishing. The ML classifier also flagged this PDF with high confidence.

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/479516143/free-minecraft-website-game-hack In PDF document text
    • https://proviant.kz/images/free-tiktok-likes-no-survey_GM835599320.pdfIn PDF document text
    • https://proviant.kz/images/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://proviant.kz/images/minecraft-free-download-unblocked_GM479516143.pdfIn PDF document text
    • https://proviant.kz/images/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • https://proviant.kz/images/how-to-create-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://proviant.kz/images/free-minecraft-account_GM479516143.pdfIn PDF document text
    • https://proviant.kz/images/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://proviant.kz/images/free-tiktok-likes-no-human-verification-or-download_GM835599320.pdfIn PDF document text
    • https://proviant.kz/images/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://proviant.kz/images/minecraft-games-free-download_GM479516143.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_off00002d0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D0B 22348 bytes
SHA-256: f5034727ffb5c74e9f2d7a7b5520dac144b107d35eee3ca8ad74bef3fa7890bf
font_01_sfnt_off00005ec1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EC1 17924 bytes
SHA-256: ff8b7dbb958b2e21889f0de65becea477e8c4948e76fdf7eea045243f3f10d1a

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