Malicious PDF — malware analysis report

Static analysis result for SHA-256 bed7cf9cb90af4ef…

MALICIOUS

PDF

21.8 KB Created: 2021-06-08 09:53:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 95c85e047f8033433f7595249f2fbf10 SHA-1: 8253010479843e892f539ab57f5fb1d247a12610 SHA-256: bed7cf9cb90af4ef79fbd7ecdbe8ca65a4e9e061a3e56e19e0b91c870f55d2bd
130 Risk Score

Malware Insights

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

The PDF file contains multiple links that redirect to known malicious infrastructure, specifically a site offering a 'game hack generator'. The document body, though partially corrupted, contains text related to 'Ariana Grande Break Free Roblox Id' and a call to action to access a generator, reinforcing the lure. The presence of embedded URLs and the nature of the redirector strongly suggest an attempt to deliver a malicious payload or phish user credentials.

Machine Learning

  • Nyx PDF Classifier clean score 0.0210

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.tw/app/431946152/ariana-grande-break-free-roblox-id-game-hack In 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_off00000eb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB8 18324 bytes
SHA-256: 4c929bb3e83ef8a3591985cf6196089194be382c7fdd916353807e4bbd6f99b4
font_01_sfnt_off00003426.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3426 18032 bytes
SHA-256: a13eca07f3d91469aaa1efda5338621968fe5af39f866f38381022dd638840e5

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