Malicious PDF — malware analysis report

Static analysis result for SHA-256 32c89a790671d933…

MALICIOUS

PDF

35.3 KB Created: 2021-05-21 17:36:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 203771573b4e3a2e2adbb0e27b38fc68 SHA-1: 13489f840c8f70fc69549a9ea5907a83bd055418 SHA-256: 32c89a790671d9330f8db89237776ac13f2c917e25804b0bc4d487f66c1731f7
160 Risk Score

Malware Insights

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

The PDF contains multiple links to known malicious redirectors, specifically advertising "free generators" or "game hacks" to entice clicks. The primary malicious URL identified is https://netcdn.xyz/app/431946152/free-roblox-acc-game-hack, which is part of a chain of redirects. The document body also contains a "CLICK HERE TO ACCESS ROBLOX GENERATOR" call to action, reinforcing the lure. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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/free-roblox-acc-game-hack In PDF document text
    • https://www.donjastubica.hr/files/show-me-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.donjastubica.hr/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://www.donjastubica.hr/files/minecraft-pocket-apk_GM479516143.pdfIn PDF document text
    • https://www.donjastubica.hr/files/minecraft-free-no-virus_GM479516143.pdfIn PDF document text
    • http://www.donjastubica.hr/files/how-to-find-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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
stream_002_off0000303d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x303D 24804 bytes
SHA-256: 468ade337cbdb316550a92115105a197889f90c7e5fd34356d121662fc3e45c2
font_01_sfnt_off00006970.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6970 17948 bytes
SHA-256: 74db3e5e7aeb6f0756448051187db7defe34e7c9b7f0bab0dc8e4ffe2ac72fee

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