Malicious PDF — malware analysis report

Static analysis result for SHA-256 b10df23ec0504574…

MALICIOUS

PDF

42.3 KB Created: 2021-05-15 11:10:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2beca73e7928ab1d2a59b61e7051abe7 SHA-1: d8192f531ff52d57f43b61b57d578233a6e61e32 SHA-256: b10df23ec05045741cc1e1c2e30eff972be39bfdc121a3f8ea54b49289e943b6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure for game-related hacks, specifically targeting "Coin Master" players. It contains multiple embedded links that redirect to malicious infrastructure, designed to trick users into downloading potentially harmful applications. The ML classifier strongly indicated maliciousness, and the presence of numerous redirector links reinforces the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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-hack-app-download-free-game-hack In PDF document text
    • http://ernstgloves.co.il/images/play-coin-master_GM406889139.pdfIn PDF document text
    • http://ernstgloves.co.il/images/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • http://ernstgloves.co.il/images/roblox-how-to-get-free-clothes_GM431946152.pdfIn PDF document text
    • http://ernstgloves.co.il/images/coin-master-hack-mod-apk-unlimited-spin-download_GM406889139.pdfIn PDF document text
    • http://ernstgloves.co.il/images/hack-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • http://ernstgloves.co.il/images/wurst-hacked-client-112-2_GM479516143.pdfIn PDF document text
    • http://ernstgloves.co.il/images/free-minecraft-bedrock-server_GM479516143.pdfIn PDF document text
    • http://ernstgloves.co.il/images/como-hackear-coin-master-sin-verificacion-humana_GM406889139.pdfIn PDF document text
    • http://ernstgloves.co.il/images/free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://ernstgloves.co.il/images/coin-master-free-spins-5-10-2021_GM406889139.pdfIn PDF document text
    • http://ernstgloves.co.il/images/coin-master-home_GM406889139.pdfIn PDF document text
    • http://ernstgloves.co.il/images/uprobuxcom-free-robux_GM431946152.pdfIn PDF document text
    • http://ernstgloves.co.il/images/games-like-minecraft-but-free_GM479516143.pdfIn PDF document text
    • http://ernstgloves.co.il/images/coin-master-free-online-game_GM406889139.pdfIn PDF document text
    • http://ernstgloves.co.il/images/free-robux-download_GM431946152.pdfIn PDF document text
    • http://ernstgloves.co.il/images/how-to-make-free-robux_GM431946152.pdfIn PDF document text
    • http://ernstgloves.co.il/images/roblox-free-body_GM431946152.pdfIn PDF document text
    • http://ernstgloves.co.il/images/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://ernstgloves.co.il/images/easy-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://ernstgloves.co.il/images/microsoft-free-robux_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
stream_003_off00004b79.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B79 23928 bytes
SHA-256: 876787361afee78e59d0adde04a6bdb70947f2eaa28f1a8537a816e9eddf1045
font_01_sfnt_off00008206.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8206 18636 bytes
SHA-256: fa7a6da1b4bcc113a0958a5ae0d8c2ab7d580afb69fd53804aad306f80425e53

Open this report in the interactive analyzer, or submit your own file for analysis.