Malicious PDF — malware analysis report

Static analysis result for SHA-256 5beb9cec887b83ea…

MALICIOUS

PDF

36.2 KB Created: 2021-04-19 10:54:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 4ae851d7673e226e15261ab3c4b5011d SHA-1: b0553a4a921d4c899e35164984ea855fa85069b9 SHA-256: 5beb9cec887b83ea425b3b8b37e83630c90a5b0551d4b308d90eed3a88373253
72 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a prominent link to a website advertising a "free generator / game hack" for Roblox, indicating a social engineering lure. The document body and metadata confirm the link's purpose. While no scripts were directly extracted, the PDF structure and heuristic firings suggest an attempt to redirect the user to a potentially malicious site for further compromise.

Machine Learning

  • Nyx PDF Classifier clean score 0.0302

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.
  • 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://gaminggenerator.org/app/431946152/cb-ro-roblox-hack-game-hack PDF link annotation
    • 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_off0000360b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x360B 24776 bytes
SHA-256: 0c4ae44206b207c6efc558dee59d023458503890242b6069d60f48a8fdddb7db
font_01_sfnt_off00006f33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F33 17272 bytes
SHA-256: 979c97b17eeb22d369b144c94e27d40ae5fa8f4a6b6f596b9f675a0e10c1e45b

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