Malicious PDF — malware analysis report

Static analysis result for SHA-256 526135e611008ee1…

MALICIOUS

PDF

40.7 KB Created: 2021-05-13 18:18:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e129017584528ae9b2646c81afc4d6eb SHA-1: e33a3a079faa00b3353e2292346addc34b93ea9e SHA-256: 526135e611008ee1a6f0e86038515e8454a9f219ff5af08fcb7e5b09ecdf1398
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains multiple heuristics indicating it links to malicious redirector infrastructure, specifically promoting a 'Roblox Admin Hack' or generator. The embedded URL, https://netcdn.xyz/app/431946152/roblox-admin-hack-game-hack, is flagged as malicious. The document body also contains explicit calls to action like 'CLICK HERE TO ACCESS ROBLOX GENERATOR', reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier clean score 0.0128

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/431946152/roblox-admin-hack-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 5

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00003544.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3544 25388 bytes
SHA-256: 37c55377188e5a9b55db7335e50ae91c04ff4f9a0296b3c7021582fb6d8035c3
font_01_sfnt_off00006f2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F2B 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off00007c3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C3C 18736 bytes
SHA-256: 3c6e42d8b899458ba5de36bc8f8a4655a2118fb63f8b9623f3d1687e7f66cf01

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