Malicious PDF — malware analysis report

Static analysis result for SHA-256 097eb762a43dc779…

MALICIOUS

PDF

34.2 KB Created: 2021-07-06 03:30:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a8edf9857ca0f85e1691e39ca54a6801 SHA-1: 6c60c932d5fab156b462b222999cae7f9807a1fe SHA-256: 097eb762a43dc779b25f15b61b7002f44050afe61dd8afb7a63fee953cef7871
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting free game hacks and generators. The primary lure URL is http://netcdn.tw/app/406889139/free-coin-master-hacks-game-hack, which is flagged as a malicious redirector. The document body and heuristics indicate a social engineering tactic to trick users into visiting these sites, likely for further malware delivery or phishing.

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.tw/app/406889139/free-coin-master-hacks-game-hack In PDF document text
    • http://bw.ac.th/userfiles/files/minecraft-sign-up-free_GM479516143.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/claimrbx-free-robux_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/how-to-destroy-roblox-place-with-cheat-engine_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/100-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/minecraft-world-free-download_GM479516143.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/minecraft-hacks-ps4_GM479516143.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/click-here-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/how-to-hack-roblox-tower-of-hell_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/roblox-free-builders-club-pastebin_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/free-aimbot-for-roblox_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/how-do-u-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/free-mojang-account-with-minecraft_GM479516143.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/hack-coin-master-spin-apk_GM406889139.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/coin-master-games-download-free_GM406889139.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/minecraft-coins-free_GM479516143.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/roblox-free-robux-group-funds_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/get-free-spins-on-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/how-to-get-free-robux-without-verification-or-surveys_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_off000030f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30F1 22580 bytes
SHA-256: 70fa88d1dcc6b14ef7c47d03479998cc7aaa09d32d464c1bf2f5363dcb664cc9
font_01_sfnt_off00006351.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6351 18168 bytes
SHA-256: 0b2a96827142e2704bc3cf92debab539c74e7a066f59150f0464612b64e0e13f

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