PDF malware analysis — malicious · 8c2d3de3904059a8

MALICIOUS

PDF

33.3 KB Created: 2021-07-03 14:42:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: d618b220bd911306bc3470b1337105df SHA-1: 9b23121bedd57a77e30168ba0bcd0b0467554abd SHA-256: 8c2d3de3904059a8c4b60a15934e2ba92046cf0e4f2d0d28fc67dffca69091f9

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document displays a fake CAPTCHA, a common lure to trick users into downloading further malicious content. The embedded URL and numerous other URLs point to sites offering game hacks and cheats, reinforcing the malicious intent. The ML classifier also strongly indicated maliciousness.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/479516143/minecraft-tiktok-hacks-game-hack
- https://goodtools.tw/upload/files/free-robux-generator-2021_GM431946152.pdf
- https://goodtools.tw/upload/files/free-robux-facilement-et-gratuit-sur-android_GM431946152.pdf
- https://goodtools.tw/upload/files/roblox-viechle-simulator-how-to-get-free-cars_GM431946152.pdf
- https://goodtools.tw/upload/files/master-game_GM406889139.pdf
- https://goodtools.tw/upload/files/free-robux-hack-that-actually-works_GM431946152.pdf
- https://goodtools.tw/upload/files/coin-master-hack-without-verification-code_GM406889139.pdf
- https://goodtools.tw/upload/files/coin-master-stop-attack-hack_GM406889139.pdf
- https://goodtools.tw/upload/files/how-to-hack-someone-home-in-roblox_GM431946152.pdf
- https://goodtools.tw/upload/files/how-to-hack-someone-in-roblox-on-ipad_GM431946152.pdf
- https://goodtools.tw/upload/files/coin-master-spin-hack-2021_GM406889139.pdf
- https://goodtools.tw/upload/files/free-robux-market_GM431946152.pdf
- https://goodtools.tw/upload/files/earn-free-robux-right-now_GM431946152.pdf
- https://goodtools.tw/upload/files/free-robux-codes-2021-real_GM431946152.pdf
- https://goodtools.tw/upload/files/how-to-get-free-robux-without-tix_GM431946152.pdf
- https://goodtools.tw/upload/files/real-robux-generator-2021_GM431946152.pdf
- https://goodtools.tw/upload/files/master-coin-hack_GM406889139.pdf
- https://goodtools.tw/upload/files/blox-gg-free-robux_GM431946152.pdf
- https://goodtools.tw/upload/files/hack-para-coin-master-singapore_GM406889139.pdf
- https://goodtools.tw/upload/files/roblox-hack-ga_GM431946152.pdf
- https://goodtools.tw/upload/files/free-domain-for-minecraft-server_GM479516143.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_off00003027.bin` `73a0799857510db33ba706a955730407323e59b3993ab3bd5f90983b195d7d00`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3027	21676 bytes
`font_01_sfnt_off00005fcb.bin` `d858152f2a6d9918f16bf17894c3b32edc2901f5e5729d796848897be3b1a954`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5FCB	18168 bytes

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