Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c45a1f787f06cb6…

MALICIOUS

PDF

38.0 KB Created: 2021-05-22 02:10:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7bd19f48bff4a8f4acd0b954fd1f1572 SHA-1: 829b2c605d8b6056cefcc6ac91d3e48cea1ad029 SHA-256: 4c45a1f787f06cb6ddc9bb4ba99cf1d1c8ab00123db6549f11c6f3aa5ec7a0bb
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks or generators. The embedded links and the document body text, which mentions 'Free Minecraft Games For Kids' and 'CLICK HERE TO ACCESS MINECRAFT GENERATOR', strongly suggest a lure to trick users into visiting potentially harmful websites. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9407

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 https://netcdn.xyz/app/479516143/free-minecraft-games-for-kids-game-hack In PDF document text
    • https://esl.ipb.ac.id/images/get-free-tiktok-followers-no-verification_GM835599320.pdfIn PDF document text
    • https://esl.ipb.ac.id/images/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://esl.ipb.ac.id/images/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://esl.ipb.ac.id/images/mcpe-master-hack-unlimited-coins_GM406889139.pdfIn PDF document text
    • https://esl.ipb.ac.id/images/coin-master-free-spins-facebook_GM406889139.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
stream_002_off0000335c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x335C 31300 bytes
SHA-256: 3830eb787b22e20ab0e6d023f8e7041da775608675899c5c429c56045d200582
font_01_sfnt_off00007412.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7412 18144 bytes
SHA-256: 13e7e5cd67c7f2718453187682e852ca38f83a1f5fffd311a8da849f95858a3e

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