PDF malware analysis — malicious · e4de3fa730812082

MALICIOUS

PDF

34.2 KB Created: 2021-06-22 01:51:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 63d518ace41ad75fd672eba20a03f71b SHA-1: 9372333097848f889597dc6c3b2e68e47630d64d SHA-256: e4de3fa730812082f1d9684645dd966858efb283fde2f63733200b1e5797c6a2

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 0.9980

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-noob-clothes-roblox-game-hack PDF link annotation
- https://www.tiancom.com.tw/upload/files/synapse-hack-roblox-download-free-2021_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/coin-master-free-spins-link-hack_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/how-to-hack-coin-master-pc_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/wearedevs-roblox-speed-hack_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/hoe-to-hack-the-roblox_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/how-to-get-free-robux-easy-on-phone_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/coin-master-free-spins-april-2021_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/how-to-make-a-free-shirt-in-roblox_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/roblox-free-items-glitch_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/oprewards-com-roblox_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/tiktok-likes-free-trial_GM835599320.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/mobile-hack-roblox_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/roblox-800-free-robux_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/free-robux-codes_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/get-free-robux-now_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/kachifpro_GM406889139.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/roblox-rape-hack_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
- https://www.tiancom.com.tw/upload/files/coin-master-links-2021_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_off00002f3b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2F3B	22352 bytes
SHA-256: `d14fff902b84a3a1d52639a3ef2efbfe4d58d1fb71a4cf0ea6eb089e59a70575`
`font_01_sfnt_off000060f7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x60F7	18920 bytes
SHA-256: `af740ca7d6977981fb1b1fd37340e8ba228707bb957ae57bb787bdf3d8db5f51`

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