Malicious PDF — malware analysis report

Static analysis result for SHA-256 88530c09e2680caa…

MALICIOUS

PDF

36.6 KB Created: 2021-05-19 20:01:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 796c86c15459ee86277d96fb2a916337 SHA-1: d629142a91a58116286c630711f99260719ecc91 SHA-256: 88530c09e2680caa205257bc9ae6e8000c30e220b6bc32002b841304781659cf
130 Risk Score

Malware Insights

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

The PDF contains multiple links to a known malicious redirector infrastructure, specifically advertising a 'free Robux hack'. The document body also contains a prominent 'CLICK HERE TO ACCESS ROBLOX GENERATOR' call to action, reinforcing the lure. These elements strongly suggest the file is designed to trick users into visiting a malicious site, likely to download further malware or engage in credential harvesting.

Machine Learning

  • Nyx PDF Classifier clean score 0.0312

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/how-to-get-free-robux-hack-game-hack In 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_003_off00003248.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3248 25028 bytes
SHA-256: f25cb42008a36d5a882334492381a52d4f48fd3620046c587ef1b7262283b12b
font_01_sfnt_off00006c52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C52 18680 bytes
SHA-256: 94830d128a2a842b7d907871b5b30233810e9b8beb569ce3f786f2ddb63eaed4

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