PDF malware analysis — malicious · 464eaefd3c9c8aa8

MALICIOUS

PDF

45.4 KB Created: 2021-05-13 17:55:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 3125b03e3de6eedfb544c987e4399f81 SHA-1: 6bd9433d5408d51635087c2d1a8cc8257af92d8d SHA-256: 464eaefd3c9c8aa86a037ca7625278f24ef8ebe909b98aa8434abcbe8f236a69

90 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains embedded JavaScript and external URLs, indicating an attempt to redirect the user to malicious content. The presence of a download button lure and remote support tool pretext suggests a social engineering tactic to trick the user into downloading a payload or granting remote access. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

Nyx PDF Classifier malicious score 0.9507

Heuristics 5

Remote-support tool lure high SE_REMOTE_SUPPORT_LURE

Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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/mcpe-free-download-game-hack
- https://cheryco.ir/assets/public/js/uploading/files/best-free-minecraft-hacked-client_GM479516143.pdf
- https://cheryco.ir/assets/public/js/uploading/files/free-robux-scams_GM431946152.pdf
- https://cheryco.ir/assets/public/js/uploading/files/how-to-hack-someones-roblox-account_GM431946152.pdf
- https://cheryco.ir/assets/public/js/uploading/files/wurst_GM479516143.pdf
- https://cheryco.ir/assets/public/js/uploading/files/minecraft-free-download-windows_GM479516143.pdf
- https://cheryco.ir/assets/public/js/uploading/files/fb-coin-master-hack_GM406889139.pdf
- https://cheryco.ir/assets/public/js/uploading/files/coin-master-unlimited-spin-hack_GM406889139.pdf
- https://cheryco.ir/assets/public/js/uploading/files/mobihack-roblox-hack_GM431946152.pdf
- https://cheryco.ir/assets/public/js/uploading/files/how-to-hack-coin-master-game-2021_GM406889139.pdf
- https://cheryco.ir/assets/public/js/uploading/files/coin-master-free-coins-and-spins-link_GM406889139.pdf
- https://cheryco.ir/assets/public/js/uploading/files/free-old-roblox-accounts_GM431946152.pdf
- https://cheryco.ir/assets/public/js/uploading/files/coin-master-unlimited-spins-apk-free-download_GM406889139.pdf
- https://cheryco.ir/assets/public/js/uploading/files/how-can-i-get-free-robux_GM431946152.pdf
- https://cheryco.ir/assets/public/js/uploading/files/hacked-roblox-accounts-list_GM431946152.pdf
- https://cheryco.ir/assets/public/js/uploading/files/free-robux-without-downloading-apps_GM431946152.pdf
- https://cheryco.ir/assets/public/js/uploading/files/hack-to-protect-village-on-coin-master_GM406889139.pdf
- https://cheryco.ir/assets/public/js/uploading/files/free-coin-master-spin-and-coin-link_GM406889139.pdf
- https://cheryco.ir/assets/public/js/uploading/files/roblox-arsenal-hack_GM431946152.pdf
- https://cheryco.ir/assets/public/js/uploading/files/coin-master-free-spins-hack-download_GM406889139.pdf
- https://cheryco.ir/assets/public/js/uploading/files/2021-free-spins-coin-master_GM406889139.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004b4d.bin` `54484dfa60094de3ac198ecb986f89627b20a709d3107f07921adcef3054ecfa`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4B4D	24820 bytes
`font_01_sfnt_off000083ad.bin` `502d409a7cefb4b36c8cd1e749ac49664a6232a663010e8c21aeb5a972ead81a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x83AD	3444 bytes
`font_02_sfnt_off00008f21.bin` `9a1f81bbc101413fe43a9b313857328452ece1c5d1a1f8b03e9ae928595b3df1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8F21	18240 bytes

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