PDF malware analysis — malicious · e9e67d59d2fe6473

MALICIOUS

PDF

34.3 KB Created: 2021-07-04 22:30:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07

MD5: 5468d0bd73844d96557efd45552c986e SHA-1: 64b153123272d741625b22b9cbb3d06c73036413 SHA-256: e9e67d59d2fe64737c05bfab2c8ddc8c2808a35fee3a31e12e9b3ec233be8721

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a high-confidence heuristic indicating it links to a game hack lure. The document body and embedded URLs reinforce this, pointing to a URL that promises game hacks. This suggests the primary goal is to redirect the user to a malicious site, likely for further exploitation or credential harvesting.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

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.
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 http://netcdn.tw/app/406889139/completed-coin-master-hack-game-hack PDF link annotation
- https://www.ruchya.com.tw/upload/files/free-robux-not-fake_GM431946152.pdfIn PDF document text
- https://www.ruchya.com.tw/upload/files/free-robux-from-form-tampering_GM431946152.pdfIn PDF document text
- https://www.ruchya.com.tw/upload/files/como-tener-ropa-gratis-en-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.ruchya.com.tw/upload/files/coin-master-card-collection-link_GM406889139.pdfIn PDF document text
- https://www.ruchya.com.tw/upload/files/free-id-roblox_GM431946152.pdfIn PDF document text
- https://www.ruchya.com.tw/upload/files/free-tiktok-followers-no-downloads_GM835599320.pdfIn PDF document text
- https://www.ruchya.com.tw/upload/files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
- https://www.ruchya.com.tw/upload/files/coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.ruchya.com.tw/upload/files/free-injector-roblox_GM431946152.pdfIn PDF document text
- https://www.ruchya.com.tw/upload/files/game-codes-eu-free-robux_GM431946152.pdfIn PDF document text
- https://www.ruchya.com.tw/upload/files/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
- https://www.ruchya.com.tw/upload/files/pain-exist-roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
- https://www.ruchya.com.tw/upload/files/free-robux-generator-download-no-surveys_GM431946152.pdfIn PDF document text
- https://www.ruchya.com.tw/upload/files/roblox-hacks-tower-of-hell_GM431946152.pdfIn PDF document text
- https://www.ruchya.com.tw/upload/files/google-only-roblox-items-free-2021_GM431946152.pdfIn PDF document text
- https://www.ruchya.com.tw/upload/files/roblox-account-hacker-tool_GM431946152.pdfIn PDF document text
- https://www.ruchya.com.tw/upload/files/game-coin-master-hack_GM406889139.pdfIn PDF document text
- https://www.ruchya.com.tw/upload/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.ruchya.com.tw/upload/files/free-robux-sites-2021_GM431946152.pdfIn PDF document text
- https://www.ruchya.com.tw/upload/files/como-hackear-roblox-2021_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.

Filename	Kind	Source	Size
`font_00_sfnt_off00002fd4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2FD4	22644 bytes
SHA-256: `c4309abb105beb7b8fcba88122db13b9a6bbe0c0a85acb501b47b556d213fc82`
`font_01_sfnt_off00006242.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6242	18688 bytes
SHA-256: `d314275442e2b498f39cfd2636dfe0c4a5c9291756091703ea36191dc862be71`

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