Malicious PDF — malware analysis report

Static analysis result for SHA-256 82ca104beaaba935…

MALICIOUS

PDF

49.5 KB Created: 2021-06-02 16:06:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d5ba19b0671623898150b96991ce63cc SHA-1: b1f0ad5d2cc45246a9a918a1d0ace8e7f6e825ac SHA-256: 82ca104beaaba935d80fd155728732b39808a73934f82c3832c35e0ef331d010
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links designed to lure users to websites offering game hacks and free in-game currency, such as Roblox Robux. One primary link, https://netcdn.xyz/app/431946152/hacking-doomspire-brickbattle-roblox-game-hack, is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to these lures and embedded URLs. The presence of these malicious links and the nature of the lures strongly suggest a phishing or scamming attempt, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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/hacking-doomspire-brickbattle-roblox-game-hack In PDF document text
    • http://stansabbiatura.com/images/tiktok-free-netflix_GM835599320.pdfIn PDF document text
    • http://stansabbiatura.com/images/free-tiktok-likes-and-followers_GM835599320.pdfIn PDF document text
    • http://stansabbiatura.com/images/roblox-com-hack_GM431946152.pdfIn PDF document text
    • http://stansabbiatura.com/images/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://stansabbiatura.com/images/daily-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://stansabbiatura.com/images/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
    • http://stansabbiatura.com/images/free-robux-app-2021_GM431946152.pdfIn PDF document text
    • http://stansabbiatura.com/images/free-tiktok-likes-no-survey_GM835599320.pdfIn PDF document text
    • http://stansabbiatura.com/images/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://stansabbiatura.com/images/coin-master-hack-spin-160-pro_GM406889139.pdfIn PDF document text
    • http://stansabbiatura.com/images/coin-master-gift-hack_GM406889139.pdfIn PDF document text
    • http://stansabbiatura.com/images/minecraft-pe-free-download-android_GM479516143.pdfIn PDF document text
    • http://stansabbiatura.com/images/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://stansabbiatura.com/images/claimrbx-free-robux_GM431946152.pdfIn PDF document text
    • http://stansabbiatura.com/images/free-tiktok-followers-no-verification-or-survey_GM835599320.pdfIn PDF document text
    • http://stansabbiatura.com/images/free-multiplayer-minecraft-server_GM479516143.pdfIn PDF document text
    • http://stansabbiatura.com/images/how-to-hack-coin-master-with-root_GM406889139.pdfIn PDF document text
    • http://stansabbiatura.com/images/coin-master-tiradas-gratis_GM406889139.pdfIn PDF document text
    • http://stansabbiatura.com/images/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://stansabbiatura.com/images/coin-master-32-mod-hack-unlimited_GM406889139.pdfIn 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_off00005107.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5107 26544 bytes
SHA-256: d17a26831dbdf710ef02f8b82ab115d682fb5fb62f7992a28ecb84c04c6c5012
font_01_sfnt_off00008f02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F02 5596 bytes
SHA-256: 9a13c2580265a78e8a7257496a31ee0055738af7e20a5661c2902efe4bf05ce5
font_02_sfnt_off00009ba9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BA9 19300 bytes
SHA-256: c9904a6dbeaa1e3c1c693c4be1f4a15be7caba9969ca6dfce1416e6777767e7d

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