Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebebd9f2dfd41804…

MALICIOUS

PDF

41.7 KB Created: 2021-04-27 10:12:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 925f1414d4a3f62473c4ace93ad09148 SHA-1: e39166daaa638c75507ac4914d1b818eec38753d SHA-256: ebebd9f2dfd4180479bf23733718020ab7e9993da4a48d9f621bb7002afe9357
160 Risk Score

Malware Insights

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

The PDF document contains multiple links to a known malicious redirector infrastructure, specifically promoting 'free generators' and 'game hacks' for Roblox. The document body explicitly contains the URL 'https://netcdn.xyz/app/431946152/exploit-hacks-for-roblox-jailbreak-game-hack', which is flagged as malicious. While no scripts were directly extracted, the PDF structure and embedded links suggest an attempt to redirect the user to a malicious site, likely for further exploitation or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

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/exploit-hacks-for-roblox-jailbreak-game-hack In PDF document text
    • https://lib.stie-yai.ac.id/repository/como-crear-hacks-para-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/can-you-trade-free-accessories-on-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/kron-hack-for-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/boys-roblox-pajamas-free-shipping.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/el-mayor-hacker-de-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-infinite-health-hack-gary-s-hood.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-cheats-blog.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-skins-free-download-fnaf.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-roblox-limited-items.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-im-freaking-out-hack.pdfIn 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
stream_003_off000042de.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x42DE 26992 bytes
SHA-256: 7fec08353499ab84272ba6225064df9196bf50dbac7f28d49b3aa866773d4bff
font_01_sfnt_off00007f71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F71 18912 bytes
SHA-256: 9d3e0796fb3939055abd9ffcf39f5be02b157de9b701b40f9f2740aa5809f465

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