PDF malware analysis — malicious · ec0e06938e645d96

MALICIOUS

PDF

52.8 KB Created: 2021-05-16 17:50:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 8664199b8da4af96d8da70edd1b2dedb SHA-1: 392d9da5b2d273f898b8034db83642f07f2db81f SHA-256: ec0e06938e645d96bbf58444b42654ae950085bb30426fd66bc0ff017e76ecbe

82 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 and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.8788

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 https://netcdn.xyz/app/479516143/free-minecraft-server-maker-game-hack PDF link annotation
- https://www.tiancom.com.tw/upload/files/minecraft-114-download_GM479516143.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-coins-coin-master-today_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/how-to-hack-coin-master-without-root_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/sb-game-hacker-coin-master_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-spins-and-coins-coin-master-link-2021_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/robux-fun-hack_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/monttechscom-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/code-free-robux_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-spin-app-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-robux-offers_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/krnl-roblox_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/minecraft-pe-mod-menu_GM479516143.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-spins-coin-master-hack-2021_GM406889139.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/hacks-master-coin_GM406889139.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00004c0d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4C0D	25080 bytes
SHA-256: `e4837cb92eb0f6d523eaf61e9f1024cc4f6767556cb844ca753a71d90d149d38`
`font_01_sfnt_off00008473.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8473	8352 bytes
SHA-256: `ef701f999e0e31ea7698af9d0f191611bd308c0650c05c9e2df70ecbe4e33d94`
`font_02_sfnt_off00009ebf.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9EBF	4232 bytes
SHA-256: `ab6320ab342704d2c5943abfba82ed4837bf2da871c91621741fd4cfd15c6ed5`
`font_03_sfnt_off0000ad4c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAD4C	17852 bytes
SHA-256: `a2113846211f941d41962086a33418b46c13efddcea93467eebdb757cad7d920`

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