Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae1b0e66b2f7bada…

MALICIOUS

PDF

36.5 KB Created: 2021-05-21 07:48:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 01a9d19b40633e283e8446974b3d9bb9 SHA-1: 8f57ec0cba26fc79ef4834ce59f4cf4a1a17188b SHA-256: ae1b0e66b2f7bada85466c0b8c2d9097150a1106581f3a6e69e86156f6810835
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 promoting game hacks and generators. The document body includes text and a call-to-action phrase, 'CLICK HERE TO ACCESS ROBLOX GENERATOR', which, combined with the heuristic firings, indicates a lure to a malicious website. The ML classifier also flagged this PDF as malicious, increasing confidence in the assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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-hack-ga-game-hack In PDF document text
    • http://brinicombe.co.uk/images/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://brinicombe.co.uk/images/free-roblox-svg_GM431946152.pdfIn PDF document text
    • http://brinicombe.co.uk/images/coin-master-hack-no-survey-2021_GM406889139.pdfIn PDF document text
    • http://brinicombe.co.uk/images/minecraft-bedrock-free-server-hosting_GM479516143.pdfIn PDF document text
    • http://brinicombe.co.uk/images/how-to-exploit-roblox_GM431946152.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_off00003231.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3231 25588 bytes
SHA-256: 49186b5081ed8816085a5cc2022298fbfe3cc2c1fb81a582f16efe974e08267b
font_01_sfnt_off00006d89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D89 18184 bytes
SHA-256: 3275d650180bfb45a9fb7d5756aac43dcbbafe87c7818dab7a1b2e1f44194404

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