Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7ef7882260cb7b0…

MALICIOUS

PDF

41.1 KB Created: 2021-06-13 14:55:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 398f0985a7509c19db7041e6a82993dc SHA-1: dc7fa669be3c86091c78cf91236dec9aa9e8fc57 SHA-256: d7ef7882260cb7b0214e975e6ac8196ad1ca7be9c28bd9b6df10e47b74602104
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a call-to-action phrase designed to trick users into visiting a URL associated with malicious redirector infrastructure. The document body and heuristics indicate a lure for a game hack generator, which is a common social engineering tactic. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier clean score 0.0293

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.co/app/431946152/boku-no-roblox-remastered-money-hack-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
stream_004_off00003776.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3776 25368 bytes
SHA-256: a48c9f8d1a1ca5576af335289a1cb7ee2113f44c2398d4a48d8fd54d5fce0cea
font_01_sfnt_off00007201.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7201 2912 bytes
SHA-256: 02b35010e2614e3cc95ac6414c49295350c91fdfcc4b4cad27ffdbc10e80df7f
font_02_sfnt_off00007bfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BFE 19236 bytes
SHA-256: 86f174f1113a3fa8146ccf98953ddb2db358011dfb9a8421f7d693e43276ff74

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