Analysis
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max time kernel
200s -
max time network
128s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
23/02/2024, 19:08
Static task
static1
Behavioral task
behavioral1
Sample
chilledwindows.exe
Resource
win7-20240221-en
General
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Target
chilledwindows.exe
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Size
4.4MB
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MD5
6a4853cd0584dc90067e15afb43c4962
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SHA1
ae59bbb123e98dc8379d08887f83d7e52b1b47fc
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SHA256
ccb9502bf8ba5becf8b758ca04a5625c30b79e2d10d2677cc43ae4253e1288ec
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SHA512
feb223e0de9bd64e32dc4f3227e175b58196b5e614bca8c2df0bbca2442a564e39d66bcd465154149dc7ebbd3e1ca644ed09d9a9174b52236c76e7388cb9d996
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SSDEEP
98304:XyDt6K4MJVnjOobt/JN1LA5elHc+S4fRp5UvluKo:XyDtK8bbxn+IHcBEV/F
Malware Config
Signatures
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Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\O: chilledwindows.exe File opened (read-only) \??\V: chilledwindows.exe File opened (read-only) \??\W: chilledwindows.exe File opened (read-only) \??\I: chilledwindows.exe File opened (read-only) \??\J: chilledwindows.exe File opened (read-only) \??\G: chilledwindows.exe File opened (read-only) \??\H: chilledwindows.exe File opened (read-only) \??\Q: chilledwindows.exe File opened (read-only) \??\R: chilledwindows.exe File opened (read-only) \??\S: chilledwindows.exe File opened (read-only) \??\Z: chilledwindows.exe File opened (read-only) \??\A: chilledwindows.exe File opened (read-only) \??\B: chilledwindows.exe File opened (read-only) \??\N: chilledwindows.exe File opened (read-only) \??\P: chilledwindows.exe File opened (read-only) \??\U: chilledwindows.exe File opened (read-only) \??\E: chilledwindows.exe File opened (read-only) \??\M: chilledwindows.exe File opened (read-only) \??\T: chilledwindows.exe File opened (read-only) \??\X: chilledwindows.exe File opened (read-only) \??\Y: chilledwindows.exe File opened (read-only) \??\K: chilledwindows.exe File opened (read-only) \??\L: chilledwindows.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2032 vlc.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2032 vlc.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: 33 2756 chilledwindows.exe Token: SeIncBasePriorityPrivilege 2756 chilledwindows.exe -
Suspicious use of FindShellTrayWindow 9 IoCs
pid Process 2756 chilledwindows.exe 2032 vlc.exe 2032 vlc.exe 2032 vlc.exe 2032 vlc.exe 2032 vlc.exe 2032 vlc.exe 2032 vlc.exe 2032 vlc.exe -
Suspicious use of SendNotifyMessage 7 IoCs
pid Process 2032 vlc.exe 2032 vlc.exe 2032 vlc.exe 2032 vlc.exe 2032 vlc.exe 2032 vlc.exe 2032 vlc.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2032 vlc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\chilledwindows.exe"C:\Users\Admin\AppData\Local\Temp\chilledwindows.exe"1⤵
- Enumerates connected drives
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:2756
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C:\Windows\SysWOW64\DllHost.exeC:\Windows\SysWOW64\DllHost.exe /Processid:{06622D85-6856-4460-8DE1-A81921B41C4B}1⤵PID:936
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C:\Program Files\VideoLAN\VLC\vlc.exe"C:\Program Files\VideoLAN\VLC\vlc.exe" --started-from-file "C:\Users\Admin\Desktop\StartSet.3gp2"1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:2032
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1.2MB
MD5b6a28b72c1bb0f0c25acb846232f4c51
SHA1a2b01947bbe67c930ec295a465294a1c8a198500
SHA256a8141da701bf8a5734ced3bc518e6a0fd13e104ffc1727df7844a95e17233737
SHA5123f4e53baa0852d0e37a5d5ab20ac0c1ed82326eac775aeb6da42281dd95fd9d2025ffb0cf67e0730f74f7e72e48c2843fdd7ab63fa52b779de3519240e0551a9