PDF malware analysis — malicious · db01d6a24453e1d0

MALICIOUS

PDF

35.2 KB Created: 2021-07-10 02:05:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: d466083b6a4e4baae2b972fcab9fca84 SHA-1: 9613dd7c4765dd80162014d4363c25606245b07d SHA-256: db01d6a24453e1d06d9dc7b93c16d77a096987269e6ee8b89cb7ca321e017d18

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a large number of external links, many of which are SEO-optimized and point to pages offering game hacks and cheats. The ML classifier strongly indicated maliciousness, and the presence of a download button lure suggests an attempt to trick the user into downloading further malicious content. The primary URL http://netcdn.tw/app/406889139/coin-master-card-collection-hack-2021-game-hack is likely the initial payload delivery point.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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-card-collection-hack-2021-game-hack
- https://dolphintour.vn/images/uploadsfiles/how-to-hack-roblox-to-get-free-robux_GM431946152.pdf
- https://dolphintour.vn/images/uploadsfiles/mods-for-roblox-free-robux_GM431946152.pdf
- https://dolphintour.vn/images/uploadsfiles/how-to-hack-on-cbro-roblox_GM431946152.pdf
- https://dolphintour.vn/images/uploadsfiles/free-robux-live_GM431946152.pdf
- https://dolphintour.vn/images/uploadsfiles/roblox-robux-codes-2021_GM431946152.pdf
- https://dolphintour.vn/images/uploadsfiles/how-to-earn-robux-for-free-in-roblox_GM431946152.pdf
- https://dolphintour.vn/images/uploadsfiles/how-to-get-free-robux-promo-codes_GM431946152.pdf
- https://dolphintour.vn/images/uploadsfiles/robloxheroxyz-free-robux_GM431946152.pdf
- https://dolphintour.vn/images/uploadsfiles/how-to-earn-free-spins-coin-master_GM406889139.pdf
- https://dolphintour.vn/images/uploadsfiles/how-to-get-minecraft-for-free-on-xbox-one_GM479516143.pdf
- https://dolphintour.vn/images/uploadsfiles/pop-slots-free-vegas-casino-slots-machine-game-coin-master_GM406889139.pdf
- https://dolphintour.vn/images/uploadsfiles/how-to-get-free-coins-in-coin-master_GM406889139.pdf
- https://dolphintour.vn/images/uploadsfiles/tiktok-free-download-2021_GM835599320.pdf
- https://dolphintour.vn/images/uploadsfiles/haktuts-coin-master-today_GM406889139.pdf
- https://dolphintour.vn/images/uploadsfiles/minecraft-free-online-games_GM479516143.pdf
- https://dolphintour.vn/images/uploadsfiles/how-2-hack-roblox-for-robux_GM431946152.pdf
- https://dolphintour.vn/images/uploadsfiles/free-robux-hack_GM431946152.pdf
- https://dolphintour.vn/images/uploadsfiles/free-robux-cards-that-have-not-been-used_GM431946152.pdf
- https://dolphintour.vn/images/uploadsfiles/free-usernames-and-passwords-roblox_GM431946152.pdf
- https://dolphintour.vn/images/uploadsfiles/free-spins-coin-master-links-blogspot_GM406889139.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_002_off00003087.bin` `0b3b7f2be66c1bdbefe066e4c7ccea6601ff3220e61949f8309bb364e1f3e054`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3087	23356 bytes
`font_01_sfnt_off00006587.bin` `ebe79e675d69cfb0b5c6058c2d9c6cc85a84d65455e0e2e2977962306b94f3cc`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6587	18656 bytes

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