Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bd688f804763e5d…

MALICIOUS

PDF

46.7 KB Created: 2021-05-14 08:31:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 57a3134f736af27aaf59a7a1783a650d SHA-1: 9c3ac4ffa14253c6ef535b3c154d0374a7a37243 SHA-256: 0bd688f804763e5dd968f27ca5c726d40c1758391122f4a176f1acd4d0dd5009
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to redirector domains, specifically advertising 'free generators' and 'game hacks' for popular games. The primary lure URL, 'https://netcdn.xyz/app/406889139/coin-master-free-spins-link-download-for-iphone-game-hack', is flagged as malicious. This suggests the document is designed to trick users into downloading potentially harmful files by exploiting their interest in game cheats or free resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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/406889139/coin-master-free-spins-link-download-for-iphone-game-hack In PDF document text
    • https://scraperite.com/images/how-to-play-minecraft-online-for-free_GM479516143.pdfIn PDF document text
    • https://scraperite.com/images/free-free-robux_GM431946152.pdfIn PDF document text
    • https://scraperite.com/images/coin-master-rewards_GM406889139.pdfIn PDF document text
    • https://scraperite.com/images/how-to-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • https://scraperite.com/images/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://scraperite.com/images/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • https://scraperite.com/images/coin-master-hack-download-android_GM406889139.pdfIn PDF document text
    • https://scraperite.com/images/free-robux-just-click_GM431946152.pdfIn PDF document text
    • https://scraperite.com/images/free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • https://scraperite.com/images/coin-master-apk-hack-32_GM406889139.pdfIn PDF document text
    • https://scraperite.com/images/coin-master-hack-online-android_GM406889139.pdfIn PDF document text
    • https://scraperite.com/images/free-robux-app-real_GM431946152.pdfIn PDF document text
    • https://scraperite.com/images/how-to-get-minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • https://scraperite.com/images/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://scraperite.com/images/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • https://scraperite.com/images/free-robux-discord-servers_GM431946152.pdfIn PDF document text
    • https://scraperite.com/images/coin-master-free-attack-link_GM406889139.pdfIn PDF document text
    • https://scraperite.com/images/minecraft-dungeons-download-free_GM479516143.pdfIn PDF document text
    • https://scraperite.com/images/coin-master-hack-2021-apk_GM406889139.pdfIn PDF document text
    • https://scraperite.com/images/coin-master-hack-apk-with-fb-login-2021_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_003_off00004b5b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B5B 26476 bytes
SHA-256: 0df5aef597e19cd952cfa49b48dea8c136a8e76a90fbc5ea555b0b2c9f743590
font_01_sfnt_off00008895.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8895 2944 bytes
SHA-256: e8dca988325d5b5adea380508eed68725fcb814536e93cd420f224b7166adc23
font_02_sfnt_off000092c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92C0 18800 bytes
SHA-256: 32e4e5376f1e901ee57f900d0e5af1afa8be287b6f12ecb0545ded19bfaf4b04