Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ad03aa30c22d48b…

MALICIOUS

PDF

36.6 KB Created: 2021-05-22 08:07:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 19485ab5261fef3a58fa578d686e6d60 SHA-1: 755a34a60d86c183ffe3a1479713d77c48c649a0 SHA-256: 2ad03aa30c22d48b1324fb3376aee2132b93f0f423d544d646ff124c2e75a4c8
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 and lures users with a "free Robux generator" theme, accompanied by a fake download button. The ML classifier also flagged this PDF as malicious. The embedded links likely lead to further stages of infection or phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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-robux-generator-game-hack In PDF document text
    • http://shapemybrows.id/images/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/free-coins-for-flip-master-online_GM406889139.pdfIn PDF document text
    • http://shapemybrows.id/images/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/how-to-hack-coin-master_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
stream_002_off000032a3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32A3 25644 bytes
SHA-256: 42bc98087d426be76eb34aa16fbd6675148ba7773029e60f020922527940df9c
font_01_sfnt_off00006d8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D8E 18344 bytes
SHA-256: 10e3e3d4c68cd560ea953d22ca565409121c707f4baa42eec19ee19970d6ace4

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