Malicious PDF — malware analysis report

Static analysis result for SHA-256 344a2b7b79b057a2…

MALICIOUS

PDF

34.8 KB Created: 2021-06-26 23:15:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8accd83dab8a839a09a47588e4680761 SHA-1: 6ceff1f65c24c01ea8a9b42830a43f8ca7b7fbea SHA-256: 344a2b7b79b057a2974482ed4cd906b63dcd437d10764f9101a490dc568b00c5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites that promise free in-game currency or hacks for popular games. One of the primary links, http://netcdn.co/app/431946152/roblox-get-any-tool-hack-game-hack, is flagged as a malicious redirector. The document body and embedded URLs suggest a social engineering lure to drive users to potentially malicious content or downloads.

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/roblox-get-any-tool-hack-game-hack In PDF document text
    • http://battistibrothers.com/system/userfiles/files/free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/free-rich-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/free-robux-quiz_GM431946152.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/coin-master-hack-apk-2021-download_GM406889139.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/coin-master-mod-apk-latest-hack-with-unlimited-free-spins_GM406889139.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/get-free-robux-on-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/how-to-speed-hack-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/free-coins-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/feb-23-2021-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/coin-master-35-16-hack-apk_GM406889139.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/roblox-god-mode-hack_GM431946152.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/cpying-roblox-games-for-free_GM431946152.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/how-to-get-robux-for-free-on-laptop-2021_GM431946152.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/how-to-get-minecraft-for-free-on-tablet_GM479516143.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/tiktok-viewer-free_GM835599320.pdfIn PDF document text
    • http://battistibrothers.com/system/userfiles/files/how-to-get-free-robux-gift-cards_GM431946152.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_off00003156.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3156 22276 bytes
SHA-256: 9d1041084507647781b81611f28c079829403c4b1616c4961e5dc97bd93e5299
font_01_sfnt_off000062f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62F2 18940 bytes
SHA-256: 17eaa08f84ebc0a9c162d941c7b6c57184db92ac027dd4c18e2a82e197bc3b2c

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