Malicious PDF — malware analysis report

Static analysis result for SHA-256 838da3cd0e1b4bc8…

MALICIOUS

PDF

36.7 KB Created: 2021-05-21 11:42:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 94b227eaf6627b837a098ff3a620ccd2 SHA-1: e5055bcfb1a395e3be27e6ba54fa23177019609e SHA-256: 838da3cd0e1b4bc8833acf003ef7f05b28392172213078085bed109dabe1b729
160 Risk Score

Malware Insights

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

The PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks or generators. The primary lure is for a 'Minecraft Windows 10 Hack Client', which is a common pretext for malware distribution. The embedded URLs and the document's structure strongly suggest an attempt to trick users into downloading and executing a malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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/minecraft-windows-10-hack-client-2021-game-hack In PDF document text
    • http://greasley.website/images/minecraft-pvp-hacks_GM479516143.pdfIn PDF document text
    • http://greasley.website/images/get-me-free-robux_GM431946152.pdfIn PDF document text
    • http://greasley.website/images/pubg-uc-zip_GM1330123889.pdfIn PDF document text
    • http://greasley.website/images/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • http://greasley.website/images/free-robux-link_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003403.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3403 25148 bytes
SHA-256: 0a888aace8bbeb3fda74428b2fd3aba933010afd27dee7d215b3810756ebe9d2
font_01_sfnt_off00006c66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C66 18892 bytes
SHA-256: 54639ec1e5a0ee3fa3fc1cac5921c09ae703af0deb08d5069a7095b9a5c5a121

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