Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bb57366b97e1e9b…

MALICIOUS

PDF

38.1 KB Created: 2021-05-23 02:23:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 017487c46a6850371c5088e7476ac356 SHA-1: c45c652389121bccc5d0b9d4ea98e00e13cbbf59 SHA-256: 0bb57366b97e1e9b2bdb1f20783e15409a9ce1018ddaac67fb9ca2e21ad35c60
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple heuristics indicating a lure for a "free generator / game hack", specifically mentioning "Free Robux". It embeds several URLs that redirect to scam-related content or potentially malicious PDFs. The document body, though partially corrupted, also contains references to "Free Robux Scam" and a URL associated with such scams. No scripts were extracted, but the embedded links and the nature of the lure suggest a phishing or scam attempt, likely leading to a second-stage download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9407

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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-scam-game-hack PDF link annotation
    • http://alroglobal.com/images/fast-robux-online_GM431946152.pdfIn PDF document text
    • http://alroglobal.com/images/free-robux-app_GM431946152.pdfIn PDF document text
    • http://alroglobal.com/images/how-to-hack-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://alroglobal.com/images/free-robux-microsoft_GM431946152.pdfIn PDF document text
    • http://alroglobal.com/images/how-do-you-get-free-robux-without-paying_GM431946152.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_off000032ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32EE 28348 bytes
SHA-256: 72cd6d9f0518cd4f7025cbb3d822a216c338cf82bd5bc345400bc35f50a78d49
font_01_sfnt_off0000734a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x734A 18500 bytes
SHA-256: 24c52a02bd601b0a5cf869202747d5c16280e540771a7d3b3f68f33a5cbf68e3

Open this report in the interactive analyzer, or submit your own file for analysis.