Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea12daf04c77afe7…

MALICIOUS

PDF

38.7 KB Created: 2021-05-11 06:37:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 19217e6e4b7ad07350f2a8cd39816051 SHA-1: 0072cc1d06ac68e83b5c4a81d18ae7ce9f839872 SHA-256: ea12daf04c77afe7beb2f12e92dede1ae5cf9e7c29734e2fd9e1ea772ca7b78c
130 Risk Score

Malware Insights

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

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically advertising a "Free Robux Generator" and "Game Hack". The heuristic firings indicate that the PDF is designed as a lure, likely to trick users into visiting a malicious site. While no scripts were directly extracted, the nature of the PDF and its embedded links suggest an attempt to exploit user interest in free in-game currency to lead them to a potentially harmful destination.

Machine Learning

  • Nyx PDF Classifier clean score 0.0127

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-no-human-verification-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003300.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3300 24232 bytes
SHA-256: 25727bbd5fcf2ec3d985b90610b715d631b5036c4f8adac2cc31e6d28cb9cf01
font_01_sfnt_off00006a6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A6D 2832 bytes
SHA-256: 77ae1c4cffa647a8fd533dfa4102e94364989f9e80b9cd131876e9d1005899a2
font_02_sfnt_off0000741e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x741E 18860 bytes
SHA-256: f1337887e63f46ec65b145f76804780e669468724c6330ac6fa0452b843b30d3

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