PDF malware analysis — malicious · ab0dff399ccac847

MALICIOUS

PDF

34.6 KB Created: 2021-07-07 20:04:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07

MD5: 91c0e8964bc6273a1ce6e4235b7279d8 SHA-1: 0bfd1b9d75d73ecd73e13a216acd9fa95ac88c0c SHA-256: ab0dff399ccac847fbf6b06a0508ddc8c0d3903004d97532fe9cff6e15c942c9

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a prominent link to a 'coin-master-hack-ios-app-game-hack' URL, identified as a lure for game hacks. This suggests the document's primary purpose is to redirect users to a site that likely hosts malware or engages in phishing. No scripts were extracted, but the embedded URLs and the 'game hack' lure strongly indicate a malicious intent to trick users into downloading or visiting potentially harmful content.

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/coin-master-hack-ios-app-game-hack PDF link annotation
- https://www.tiancom.com.tw/upload/files/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-robux-easy_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/hack-coin-master-apk-download_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/download-app-hack-roblox_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/play-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-robux-no-downloading-any-apps_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-coins--spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-headless-glitch-roblox_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/robux-generator-that-works_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/robux-generator-without-human-verification-2021_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-cool-hats-roblox_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/hack-work-at-a-pizza-place-roblox_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/roblox-hack-shader_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-robux-place_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-minecraft-accounts-reddit_GM479516143.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/the-best-roblox-hack_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
`stream_002_off00003163.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3163	22928 bytes
SHA-256: `d141f5b5a7a6be4a19d9af466c502464ccecdc3578c409293e1b7a46aac5b007`
`font_01_sfnt_off000064df.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x64DF	18180 bytes
SHA-256: `4c5127a69f018205538da135c479e78cbc581b43c71a88b63707f7d03620f798`

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