Malicious PDF — malware analysis report

Static analysis result for SHA-256 eabb70c51391c2cc…

MALICIOUS

PDF

31.3 KB Created: 2021-07-19 01:47:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 421cedb60a440f3ed7ccc1da00256cf1 SHA-1: 2d5f5d1aed800621df47203642e712cdb3e20d9a SHA-256: eabb70c51391c2cc63571c189c320488cd622efb692aa49dbc3269585a08b284
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, specifically advertising 'free generators' or 'game hacks' for popular games. The document body explicitly mentions 'Roblox Speed Hack' and 'CLICK HERE TO ACCESS ROBUX GENERATOR', indicating a social engineering lure. The embedded URLs are designed to lead users to potentially harmful content or further malware downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9404

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 http://netcdn.tw/app/431946152/roblox-speed-hack-game-hack In PDF document text
    • http://butkimloai.com/images/robux-free-2021_GM431946152.pdfIn PDF document text
    • http://butkimloai.com/images/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://butkimloai.com/images/minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://butkimloai.com/images/free-robux-group_GM431946152.pdfIn PDF document text
    • http://butkimloai.com/images/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000260d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x260D 22144 bytes
SHA-256: 5466d10896fbac65b13e06209e1b8300c63ca417071dff48885829acb4cb636b
font_01_sfnt_off000056f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56F2 18716 bytes
SHA-256: 25137fd7aa4ae55fccfc2bf95df03fd14249c0cb6961e1d1bb22478a3866a6f2

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