PDF malware analysis — malicious · 2139e6844cece620

MALICIOUS

PDF

34.5 KB Created: 2021-07-03 16:36:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 0a6957b0c7618489c467cf2b7b87e32d SHA-1: 067a080c89db9715773ccb1fa2c245a72d65be19 SHA-256: 2139e6844cece62038a3c16bdb6b8a85a48488eede30a10ba52af8f5794f4e76

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of external links, identified as a link farm, pointing to websites offering game hacks and cheats. The ML classifier also flagged this PDF as malicious. The presence of a 'download' button lure reinforces the intent to trick users into clicking these links, which likely lead to malware downloads or further malicious content.

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-2021-game-hack
- http://astdubai.co/userfiles/files/how-to-get-free-robux-in-roblox-2021-ios_GM431946152.pdf
- http://astdubai.co/userfiles/files/free-robux-videos_GM431946152.pdf
- http://astdubai.co/userfiles/files/how-to-create-a-minecraft-server-for-free_GM479516143.pdf
- http://astdubai.co/userfiles/files/hack-cuentas-y-nombres-gratis-en-roblox-pastebin_GM431946152.pdf
- http://astdubai.co/userfiles/files/www-roblox-com-robux-free_GM431946152.pdf
- http://astdubai.co/userfiles/files/how-to-make-robux-on-roblox_GM431946152.pdf
- http://astdubai.co/userfiles/files/roblox-help-free-robux_GM431946152.pdf
- http://astdubai.co/userfiles/files/roblox-arsenal-hack_GM431946152.pdf
- http://astdubai.co/userfiles/files/free-robux-just-enter-username_GM431946152.pdf
- http://astdubai.co/userfiles/files/game-stealing-service-free-roblox_GM431946152.pdf
- http://astdubai.co/userfiles/files/coin-master-coin-link_GM406889139.pdf
- http://astdubai.co/userfiles/files/coin-master-free-spin-realme-products_GM406889139.pdf
- http://astdubai.co/userfiles/files/free-hacks-for-coin-master_GM406889139.pdf
- http://astdubai.co/userfiles/files/free-robux-giveaway_GM431946152.pdf
- http://astdubai.co/userfiles/files/how-to-get-free-robux-easy-hack_GM431946152.pdf
- http://astdubai.co/userfiles/files/free-roblox-avatar-ideas_GM431946152.pdf
- http://astdubai.co/userfiles/files/roblox-online-free_GM431946152.pdf
- http://astdubai.co/userfiles/files/get-free-cards-for-coin-master_GM406889139.pdf
- http://astdubai.co/userfiles/files/how-to-get-minecraft-bedrock-for-free_GM479516143.pdf
- http://astdubai.co/userfiles/files/how-to-get-free-robux-on-computer-2021_GM431946152.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00002fdd.bin` `042d848b33b7e02eed71c23f9c4bd8f56e17ae0848c1d49b3e7e2a5bf888877e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2FDD	23168 bytes
`font_01_sfnt_off00006406.bin` `ee20fae09ad4742887cf3ae2f1dc7b8177075f029557999e2b01a65596e64057`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6406	18236 bytes

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