Analysis
- user interaction
yes - max time kernel
89s - max time network
44s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
02/06/2026, 11:55
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
cwn0iCkhfwHh.exe
Resource
win10v2004-20260513-en
21 signatures
150 seconds
Behavioral task
behavioral2
Sample
cwn0iCkhfwHh.exe
Resource
win11-20260513-en
11 signatures
150 seconds
General
- Target cwn0iCkhfwHh.exe
- Size 14.8MB
- Sample260602-n3khlsct6y
- SHA256 6c0a615b74865dd06ef890b206612b7186c55e5641b5509f2c106dfbd58203bf
- MD5 e7489bb77af2fd6aaaae9891ccc86a6e
- SHA1 950eaedc5c135bc3e7fa55aa87ba7aad648aa014
- SHA512 cbf3065581e40b7036bd6b7f4091bfb1182458fb326b9934c6702e55725c93103f94ddff93f27080dd0383abbded24d3f4978c349564d63ff7133de6c9e5502a
- SSDEEP 393216:r54eSQOXZMnGADf/GMF0MIM37euQYHvO:9pOSnhD3GAXreuXO
- TLSH T1BDF633EB0D01303FDC9C12B76FAB685E2EB56FCE1E89C9B9386951E100157495F40AEB
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
Malware Config
Signatures
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ cwn0iCkhfwHh.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ cwn0iCkhfwHh.exe - Checks BIOS information in registry 2 TTPs 4 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion cwn0iCkhfwHh.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion cwn0iCkhfwHh.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion cwn0iCkhfwHh.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion cwn0iCkhfwHh.exe - Deletes itself 1 IoCs
pid Process 2984 ldrupd.bin - Executes dropped EXE 2 IoCs
pid Process 2984 ldrupd.bin 544 cwn0iCkhfwHh.exe - Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Checks whether UAC is enabled 1 TTPs 2 IoCs
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA cwn0iCkhfwHh.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA cwn0iCkhfwHh.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeSystemEnvironmentPrivilege 2840 cwn0iCkhfwHh.exe Token: SeSystemEnvironmentPrivilege 544 cwn0iCkhfwHh.exe - Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2840 cwn0iCkhfwHh.exe 544 cwn0iCkhfwHh.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2840 wrote to memory of 4180 2840 cwn0iCkhfwHh.exe 80 PID 2840 wrote to memory of 1896 2840 cwn0iCkhfwHh.exe 81 PID 2840 wrote to memory of 2984 2840 cwn0iCkhfwHh.exe 83 PID 2984 wrote to memory of 544 2984 ldrupd.bin 84 PID 544 wrote to memory of 3656 544 cwn0iCkhfwHh.exe 85 PID 544 wrote to memory of 1492 544 cwn0iCkhfwHh.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\cwn0iCkhfwHh.exe"C:\Users\Admin\AppData\Local\Temp\cwn0iCkhfwHh.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2840 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\SysWOW64\cmd.exe"2⤵PID:4180
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\SysWOW64\cmd.exe"2⤵
- System Location Discovery: System Language Discovery
PID:1896
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C:\Users\Admin\AppData\Local\ldrupd.bin"C:\Users\Admin\AppData\Local\ldrupd.bin"2⤵
- Deletes itself
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2984 -
C:\Users\Admin\AppData\Local\Temp\cwn0iCkhfwHh.exe"C:\Users\Admin\AppData\Local\Temp\cwn0iCkhfwHh.exe"3⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:544 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\SysWOW64\cmd.exe"4⤵PID:3656
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\SysWOW64\cmd.exe"4⤵PID:1492
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\cwn0iCkhfwHh.exe
- Size 22.4MB
- SHA256 b4ce5b81a2b6059464448fbd27e3ede110acce0aadebda3fa08dbfcecf69e092
- MD5 4ec29e8242e4b72f924ce6e565f64e7f
- SHA1 ecdc532aae78e50105fe1104c03fed4d2ffefecc
- SHA512 67ef7774fd5f9d42982699cc732367cffbf9a642cfa9088351cc2e3d9664a5824eba79bb09a62f27d51e4bbf7a9ce9d868e0321c2453e453909f09b4c2488e64
- SSDEEP 393216:954eSQOXZMnGADf/GMF0MIM37euQYHvO7dg42T0i3ei:zpOSnhD3GAXreuXOJZ2T0iui
- TLSH T19F3733EA0C52743BEC8812772EFE245F2AB52BCE2D59DAF5357E82E2800574A4F405D7
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\ldrupd.bin
- Size 3KB
- SHA256 80ac94c086eb6e52bc3bbebd86e0795f6cb7476153af0c767b9ae4b7e9931140
- MD5 a24978a6b77e2cd99823e24c6eb4d055
- SHA1 05aab593ba8e0c21f2859d04d4810fdd1ce453c3
- SHA512 24356ce42d0fd7839166416604fd7bd101cab8754de095676c921bfb664bc110e8a87cb863afefb5fd98450496c1b3e303851943f13a3e19f206350239c2a8db
- TLSH T1E651946ABE26E8F0D82F057D9903CA4CB369321013630E4E8B8564CE0FD3EDA7436991
- MD5 SHA1 SHA512 TLSH