Malicious PDF — malware analysis report

Static analysis result for SHA-256 212adc2fc73e3409…

MALICIOUS

PDF

45.1 KB Created: 2021-06-11 04:14:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 68c9c48b6a775c68da7c423bdc6202e1 SHA-1: 6f406d58d95cc3b846eb44644f04b552b111bf70 SHA-256: 212adc2fc73e3409171af8c8c1cee11e0d996b83f2a07ea6115ceb56f0ae56f7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious websites, masquerading as game hacks or generators. The ML classifier also flagged this PDF as malicious. The embedded URLs and the heuristic firings strongly suggest a social engineering lure to drive users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.tw/app/431946152/hacker-booga-booga-roblox-game-hack In PDF document text
    • http://bolandergroup.com/images/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://bolandergroup.com/images/roblox-elemental-battlegrounds-gems-hack_GM431946152.pdfIn PDF document text
    • http://bolandergroup.com/images/minecraft-svg-images-free_GM479516143.pdfIn PDF document text
    • http://bolandergroup.com/images/coin-master-link-for-spins_GM406889139.pdfIn PDF document text
    • http://bolandergroup.com/images/master-coin-hack-apk_GM406889139.pdfIn PDF document text
    • http://bolandergroup.com/images/wurst-115_GM479516143.pdfIn PDF document text
    • http://bolandergroup.com/images/free-tiktok-fans_GM835599320.pdfIn PDF document text
    • http://bolandergroup.com/images/minecraft-skins-free-girl_GM479516143.pdfIn PDF document text
    • http://bolandergroup.com/images/free-fans-on-tiktok_GM835599320.pdfIn PDF document text
    • http://bolandergroup.com/images/roblox-script-hacks_GM431946152.pdfIn PDF document text
    • http://bolandergroup.com/images/free-robux-come_GM431946152.pdfIn PDF document text
    • http://bolandergroup.com/images/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://bolandergroup.com/images/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://bolandergroup.com/images/youtube-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://bolandergroup.com/images/free-hack-for-robuxs-on-robloxs_GM431946152.pdfIn PDF document text
    • http://bolandergroup.com/images/how-to-download-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
    • http://bolandergroup.com/images/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://bolandergroup.com/images/coin-master-free-spins-hack-ios_GM406889139.pdfIn PDF document text
    • http://bolandergroup.com/images/mosttechs-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://bolandergroup.com/images/tiktok-minecraft-hacks_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
stream_004_off00004f8c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F8C 26524 bytes
SHA-256: 0e15d56d8a733538cd177c35f3afdf0cc7ccf37a88e0b03c14248160ba1f107f
font_01_sfnt_off00008cfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CFE 18468 bytes
SHA-256: a7a48d5f849a28834804d9841ad686e8776256ea5ed6009a898b48e8ff2bd38e

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