PDF malware analysis — malicious · 0ba00a469b53e294

MALICIOUS

PDF

34.5 KB Created: 2021-06-26 08:12:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17

MD5: 7f259a506eb0b92d67c30d09e692e6b6 SHA-1: 878409d36ec0ed886ad5c09714923de78a2510bc SHA-256: 0ba00a469b53e2940e85c1f5bf3bf4e264e2ca2bd12e10391b8009231e2f97c1

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains lures for 'free Robux' and 'game hacks', directing users to the URL http://netcdn.co/app/431946152/free-robux-1-million-game-hack. This URL is flagged as malicious and is associated with a redirector for game-related scams. The ML classifier also strongly indicated maliciousness.

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.co/app/431946152/free-robux-1-million-game-hack PDF link annotation
- https://www.kaojen.com.tw/upload/files/how-to-make-your-own-minecraft-server-for-free_GM479516143.pdfIn PDF document text
- https://www.kaojen.com.tw/upload/files/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
- https://www.kaojen.com.tw/upload/files/free-tiktok-likes-and-followers_GM835599320.pdfIn PDF document text
- https://www.kaojen.com.tw/upload/files/114-4-hacks_GM479516143.pdfIn PDF document text
- https://www.kaojen.com.tw/upload/files/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
- https://www.kaojen.com.tw/upload/files/free-robux-youtube_GM431946152.pdfIn PDF document text
- https://www.kaojen.com.tw/upload/files/pokemon-go-free-cheats_GM1094591345.pdfIn PDF document text
- https://www.kaojen.com.tw/upload/files/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
- https://www.kaojen.com.tw/upload/files/get-free-robux-2021_GM431946152.pdfIn PDF document text
- https://www.kaojen.com.tw/upload/files/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.kaojen.com.tw/upload/files/robux-free-robux_GM431946152.pdfIn PDF document text
- https://www.kaojen.com.tw/upload/files/tiktok-free-100-fans_GM835599320.pdfIn PDF document text
- https://www.kaojen.com.tw/upload/files/minecraft-windows-10-hacked-client_GM479516143.pdfIn PDF document text
- https://www.kaojen.com.tw/upload/files/coin-master-latest-mod-apk-free-download_GM406889139.pdfIn PDF document text
- https://www.kaojen.com.tw/upload/files/how-to-use-cmd-to-hack-roblox_GM431946152.pdfIn PDF document text
- https://www.kaojen.com.tw/upload/files/coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
- https://www.kaojen.com.tw/upload/files/roblox-premium-free_GM431946152.pdfIn PDF document text
- https://www.kaojen.com.tw/upload/files/pagina-para-hackear-cuentas-de-roblox_GM431946152.pdfIn PDF document text
- https://www.kaojen.com.tw/upload/files/best-minecraft-hacked-client-2021_GM479516143.pdfIn PDF document text
- https://www.kaojen.com.tw/upload/files/google-moon-active_GM406889139.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_off00003161.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3161	21856 bytes
SHA-256: `8641ba74f2953dffaa040bd7adb2b05fc44e7f9af762cb0433a3a687ae116a12`
`font_01_sfnt_off00006161.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6161	19212 bytes
SHA-256: `66cdf848553019ee5243976821580e8e63dc2f955a02935eb8d5110b760fe905`

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