Malicious PDF — malware analysis report

Static analysis result for SHA-256 aeb46c54ae81dbc7…

MALICIOUS

PDF

31.4 KB Created: 2021-07-25 01:44:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 3b268f760255c2a6303a90fb1bba4a09 SHA-1: bea7c5ebda6d2a9a0b9f1c3dd61008d86dee6ac6 SHA-256: aeb46c54ae81dbc743b89a879a39580da1f318727ca47b4ac39b47a1103805a3
130 Risk Score

Malware Insights

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

The PDF document contains a critical heuristic firing for a game hack redirect lure, pointing to a known malicious redirector infrastructure. The document body explicitly contains a call-to-action to access a 'Robux Generator' and an embedded URL that likely leads to a malicious download. This indicates a social engineering attack to trick users into downloading a payload.

Machine Learning

  • Nyx PDF Classifier clean score 0.0580

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/free-robux-exe-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
font_00_sfnt_off000026cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x26CD 22624 bytes
SHA-256: 79041b08e89c71bedab2378b63fdeabe6b3b5362ce1fceebbec3864bf401fb85
font_01_sfnt_off000059be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59BE 18200 bytes
SHA-256: 67527198e8f3e954f788e220fdc5e0efc04c24ca5928f64c044788dd6707c9fd

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