PDF malware analysis — malicious · 32d6927c658bc178

MALICIOUS

PDF

45.8 KB Created: 2021-05-14 03:02:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 578c1240a81b0edba98c67a727de99ee SHA-1: 1671ee70ced8ecc14d7aa3582ae9d36bd64f0b08 SHA-256: 32d6927c658bc1784de3628ca072373db440bd8cd93502f0cc5a2c3a1ad83055

90 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure, presents a deceptive download button and contains embedded JavaScript. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9432

Heuristics 5

PDF links to a 'free generator / game hack' redirector high 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.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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
External URI info PDF_URI

PDF contains an external URL action
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-without-verification-game-hack PDF link annotation
- http://www.erealitysolutions.com/assets/dealercmslogin/js/ckfinder/userfiles/files/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
- http://www.erealitysolutions.com/assets/dealercmslogin/js/ckfinder/userfiles/files/coin-master-date-and-time-hack_GM406889139.pdfIn PDF document text
- http://www.erealitysolutions.com/assets/dealercmslogin/js/ckfinder/userfiles/files/give-me-free-robux_GM431946152.pdfIn PDF document text
- http://www.erealitysolutions.com/assets/dealercmslogin/js/ckfinder/userfiles/files/get-free-robux-2021_GM431946152.pdfIn PDF document text
- http://www.erealitysolutions.com/assets/dealercmslogin/js/ckfinder/userfiles/files/roblox-adopt-me-hacks-2021_GM431946152.pdfIn PDF document text
- http://www.erealitysolutions.com/assets/dealercmslogin/js/ckfinder/userfiles/files/coin-master-hack-download-2021_GM406889139.pdfIn PDF document text
- http://www.erealitysolutions.com/assets/dealercmslogin/js/ckfinder/userfiles/files/hacking-apps-for-roblox_GM431946152.pdfIn PDF document text
- http://www.erealitysolutions.com/assets/dealercmslogin/js/ckfinder/userfiles/files/rewards-robux_GM431946152.pdfIn PDF document text
- http://www.erealitysolutions.com/assets/dealercmslogin/js/ckfinder/userfiles/files/free-coins-app-for-coin-master_GM406889139.pdfIn PDF document text
- http://www.erealitysolutions.com/assets/dealercmslogin/js/ckfinder/userfiles/files/roblox-hack-game_GM431946152.pdfIn PDF document text
- http://www.erealitysolutions.com/assets/dealercmslogin/js/ckfinder/userfiles/files/coin-master-unlimited-spin-apk-free-download_GM406889139.pdfIn PDF document text
- http://www.erealitysolutions.com/assets/dealercmslogin/js/ckfinder/userfiles/files/minecraft-dungeons-free_GM479516143.pdfIn PDF document text
- http://www.erealitysolutions.com/assets/dealercmslogin/js/ckfinder/userfiles/files/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
- http://www.erealitysolutions.com/assets/dealercmslogin/js/ckfinder/userfiles/files/can-i-get-free-robux_GM431946152.pdfIn PDF document text
- http://www.erealitysolutions.com/assets/dealercmslogin/js/ckfinder/userfiles/files/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
- http://www.erealitysolutions.com/assets/dealercmslogin/js/ckfinder/userfiles/files/xray-hack_GM479516143.pdfIn PDF document text
- http://www.erealitysolutions.com/assets/dealercmslogin/js/ckfinder/userfiles/files/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
- http://www.erealitysolutions.com/assets/dealercmslogin/js/ckfinder/userfiles/files/coin-drop-master-free_GM406889139.pdfIn PDF document text
- http://www.erealitysolutions.com/assets/dealercmslogin/js/ckfinder/userfiles/files/mcpe-master-hack-unlimited-coins_GM406889139.pdfIn PDF document text
- http://www.erealitysolutions.com/assets/dealercmslogin/js/ckfinder/userfiles/files/coin-master-hack-app-android-download_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.

Filename	Kind	Source	Size
`stream_003_off00004c98.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4C98	25340 bytes
SHA-256: `58bc6d5855e8a9395e2455231781a339959e65d3cb4a5c7c2908cd1a025d0b8b`
`font_01_sfnt_off0000864e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x864E	2880 bytes
SHA-256: `10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132`
`font_02_sfnt_off00009039.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9039	18356 bytes
SHA-256: `dc73d1475286564dbbcfd7fe1f785306788ee44bec01666c46f1ad38f7aa2791`

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