Malicious PDF — malware analysis report

Static analysis result for SHA-256 4bebd7b4e95f01b7…

MALICIOUS

PDF

38.1 KB Created: 2021-05-22 14:04:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: fb2f2dede08c7381fbc523f1872d445a SHA-1: d76ce45ee897d98ccce9a6fda5fe4bf4c3e18199 SHA-256: 4bebd7b4e95f01b78210462f7e24b35c5533c48cda086494d3ee9ffe9c0c49eb
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document employs a common lure of "free generator / game hack" content to entice users. It contains multiple embedded links pointing to known malicious redirector infrastructure, specifically `https://netcdn.xyz/app/406889139/coin-master-free-spin-and-coins-links-game-hack`. The document body also includes a call to action to "CLICK HERE TO ACCESS COIN MASTER GENERATOR", further reinforcing the deceptive nature of the lure. The presence of multiple links to potentially malicious domains suggests an attempt to lead the user to a compromised site or download unwanted software.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7010

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/406889139/coin-master-free-spin-and-coins-links-game-hack In PDF document text
    • http://plantas.net/images/minecraft-bedrock-free-download-pc_GM479516143.pdfIn PDF document text
    • http://plantas.net/images/claim-roblox_GM431946152.pdfIn PDF document text
    • http://plantas.net/images/hack-coin-master-apk-mod_GM406889139.pdfIn PDF document text
    • http://plantas.net/images/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://plantas.net/images/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003222.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3222 24436 bytes
SHA-256: e1fe6999cedea0d125c39ec7aa0012dbe8d10a0ca4e761a4f97fbae1be6fd874
font_01_sfnt_off000069ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69EF 2824 bytes
SHA-256: 381f6d859be141449dd645f7be1484d2a1cf49218dc471b402dae69eaa2b11d5
font_02_sfnt_off00007391.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7391 18228 bytes
SHA-256: ab1c4cdc214a6baf81a15e2f62a40ea9cfbbbf407f0f3dd1c7564e467cf0dae2

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