PDF malware analysis — malicious · 403c0a60a8dcd4e3

MALICIOUS

PDF

45.0 KB Created: 2021-05-13 08:05:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 9442e86459eb2f14d5beacd45e965686 SHA-1: aa655849e0e94f29bc7c5330a86611fa5b164881 SHA-256: 403c0a60a8dcd4e379f4e8a98c1e71d3d4b3a42554a339e25966ac576917c1b6

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The document presents a fake CAPTCHA or human verification prompt, a common lure to trick users into downloading further malicious content. The embedded URLs point to resources related to game hacks, suggesting a phishing or malware distribution attempt. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

Nyx PDF Classifier malicious score 0.9632

Heuristics 4

Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA

Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
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/431946152/boku-no-roblox-hack-game-hack
- http://chem.ipb.ac.id/kim/repository/minecraft-aimbot_GM479516143.pdf
- http://chem.ipb.ac.id/kim/repository/how-to-hack-roblox-for-robux_GM431946152.pdf
- http://chem.ipb.ac.id/kim/repository/minecraft-toolbox-premium-apk_GM479516143.pdf
- http://chem.ipb.ac.id/kim/repository/minecraft-reach-hack_GM479516143.pdf
- http://chem.ipb.ac.id/kim/repository/coin-master-hacks-to-get-spins_GM406889139.pdf
- http://chem.ipb.ac.id/kim/repository/roblox-hacks-2021_GM431946152.pdf
- http://chem.ipb.ac.id/kim/repository/coin-master-free-spin-link-new_GM406889139.pdf
- http://chem.ipb.ac.id/kim/repository/do-you-get-windows-10-minecraft-for-free-with-java_GM479516143.pdf
- http://chem.ipb.ac.id/kim/repository/robux-hack-tools_GM431946152.pdf
- http://chem.ipb.ac.id/kim/repository/roblox-hack-com_GM431946152.pdf
- http://chem.ipb.ac.id/kim/repository/coin-master-free-spins-link-2021-no-verification_GM406889139.pdf
- http://chem.ipb.ac.id/kim/repository/free-robux-websites-2021_GM431946152.pdf
- http://chem.ipb.ac.id/kim/repository/hack-roblox-players_GM431946152.pdf
- http://chem.ipb.ac.id/kim/repository/roblox-play-now-for-free_GM431946152.pdf
- http://chem.ipb.ac.id/kim/repository/how-to-get-free-robux-without-doing-anything_GM431946152.pdf
- http://chem.ipb.ac.id/kim/repository/how-to-get-free-robux-2021-easy_GM431946152.pdf
- http://chem.ipb.ac.id/kim/repository/free-spins-for-coin-master-without-human-verification_GM406889139.pdf
- http://chem.ipb.ac.id/kim/repository/free-robux-games_GM431946152.pdf
- http://chem.ipb.ac.id/kim/repository/coin-master-400-spin-link_GM406889139.pdf
- http://chem.ipb.ac.id/kim/repository/free-spin-online-tool-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
`font_00_sfnt_off00004937.bin` `b7ffdd54430405ab0be51f5ee3a2a00f23fe46e1b6db139fdc182c9f0e911602`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4937	24232 bytes
`font_01_sfnt_off00008060.bin` `63a179d8a9645bea05c6d53b1776faf4e4a7281930de6cf484e639846bec2e20`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8060	3656 bytes
`font_02_sfnt_off00008d19.bin` `cd83af5ba5492d0d90d9a213d6c06333e9cd9f39d2b07ffbf91c7f3a8ed3d34e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8D19	18320 bytes

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