Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5dacac64efadea5…

MALICIOUS

PDF

35.3 KB Created: 2021-06-28 08:24:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9e26661fc21ca403974e79bb496afa9a SHA-1: d534bd77278240c5be602cab38761d51761bedcc SHA-256: e5dacac64efadea52aec2b03f3e4fc776468e5eda1b25aea4c7a66cd9652b83e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacking, specifically for Roblox, directing users to a URL that is flagged as a malicious redirector. The presence of a call-to-action button and the ML classifier further support its malicious nature. The document's content and embedded URLs suggest a phishing attempt to trick users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/como-hackear-las-cuentas-de-roblox-game-hack In PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/como-hackear-tu-cuenta-jailbreak-roblox_GM431946152.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/promo-code-free-robux_GM431946152.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/coin-master-daily-free-spins-blog_GM406889139.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/get-me-robux-for-free_GM431946152.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/free-coin-master-hacks_GM406889139.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/free-robux-websites-2021_GM431946152.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/roblox-apocalypse-rising-item-spawn-hack_GM431946152.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/coin-master-freebies-2021_GM406889139.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/coin-master-hack-tool-v1-9-pc_GM406889139.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/roblox-login-hack_GM431946152.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/roblox-printables-free_GM431946152.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/hacks-para-coin-master_GM406889139.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/how-to-hack-roblox-accounts-passwords_GM431946152.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/how-to-get-minecraft-for-free-on-android_GM479516143.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
font_00_sfnt_off00003254.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3254 22400 bytes
SHA-256: 1f8c70f6c81f4a85e9af48a8fc7318f812d3e5d5d01d58532f0cd8514e7b0f31
font_01_sfnt_off0000643e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x643E 19328 bytes
SHA-256: 1048771e871ff70cf9e0d9af1b4c414f35184dd9c6ddc527cd5b879f25789792

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