Malicious PDF — malware analysis report

Static analysis result for SHA-256 10c9ab9b1e61a7ba…

MALICIOUS

PDF

36.2 KB Created: 2021-05-17 08:31:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8990e8e0f1a436d98a84cbb9c314ffbd SHA-1: 7d572b1338ea5048d36a2431be4518915c32ddc6 SHA-256: 10c9ab9b1e61a7ba9da7ff93d7586cfa8608f1c16daecc2776d8a3756b8dc033
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a known malicious redirector infrastructure, disguised as a 'free generator' or 'game hack'. The document body also contains a call-to-action phrase, indicating a lure to trick the user into clicking the malicious link. The primary IOC is the redirector URL which likely leads to a second-stage payload.

Machine Learning

  • Nyx PDF Classifier clean score 0.0604

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-2021-game-hack In PDF document text
    • https://www.roblox.coIn 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_off000031dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31DC 25912 bytes
SHA-256: abec0d02548e3228ca198c559ffc519699bed2abc9d656f7a28d7571f0c98eeb
font_01_sfnt_off00006def.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DEF 17648 bytes
SHA-256: f23af16ab1666daf2853245f5085738ebc717a8041089e01cca6dcf3b92f2a73

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