Analysis
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max time kernel
118s -
max time network
101s -
platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system -
submitted
15-07-2024 10:26
Static task
static1
Behavioral task
behavioral1
Sample
c4c81804aeb37310e47437169bb16040N.exe
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
c4c81804aeb37310e47437169bb16040N.exe
Resource
win10v2004-20240709-en
General
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Target
c4c81804aeb37310e47437169bb16040N.exe
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Size
225KB
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MD5
c4c81804aeb37310e47437169bb16040
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SHA1
f4c671def809d6779d4d7da08d792fae62e7a7fe
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SHA256
a11ab6f7e2f928f336849a379f7df7dafcee112b26d2b9dfb72b7ef8d2725fe1
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SHA512
097f1c3bf4c0ce56e4b9e4d69b3ea5d36feebdf080195a64e91134fd4952921e587c33f86d57098fc26f9ef1ad4f768e5610e1e3a978aafa1f6f5faa033ae067
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SSDEEP
6144:xA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:xATuTAnKGwUAW3ycQqgf
Malware Config
Signatures
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 2 IoCs
Processes:
WerFault.exeWerFault.exepid pid_target process target process 2408 2456 WerFault.exe winver.exe 2692 4000 WerFault.exe c4c81804aeb37310e47437169bb16040N.exe -
Modifies data under HKEY_USERS 1 IoCs
Processes:
svchost.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@%SystemRoot%\system32\hnetcfgclient.dll,-201 = "HNetCfg Client" svchost.exe -
Modifies registry class 1 IoCs
Processes:
Explorer.EXEdescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ Explorer.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
c4c81804aeb37310e47437169bb16040N.exepid process 4000 c4c81804aeb37310e47437169bb16040N.exe 4000 c4c81804aeb37310e47437169bb16040N.exe -
Suspicious use of AdjustPrivilegeToken 16 IoCs
Processes:
Explorer.EXEdescription pid process Token: SeShutdownPrivilege 3476 Explorer.EXE Token: SeCreatePagefilePrivilege 3476 Explorer.EXE Token: SeShutdownPrivilege 3476 Explorer.EXE Token: SeCreatePagefilePrivilege 3476 Explorer.EXE Token: SeShutdownPrivilege 3476 Explorer.EXE Token: SeCreatePagefilePrivilege 3476 Explorer.EXE Token: SeShutdownPrivilege 3476 Explorer.EXE Token: SeCreatePagefilePrivilege 3476 Explorer.EXE Token: SeShutdownPrivilege 3476 Explorer.EXE Token: SeCreatePagefilePrivilege 3476 Explorer.EXE Token: SeShutdownPrivilege 3476 Explorer.EXE Token: SeCreatePagefilePrivilege 3476 Explorer.EXE Token: SeShutdownPrivilege 3476 Explorer.EXE Token: SeCreatePagefilePrivilege 3476 Explorer.EXE Token: SeShutdownPrivilege 3476 Explorer.EXE Token: SeCreatePagefilePrivilege 3476 Explorer.EXE -
Suspicious use of FindShellTrayWindow 4 IoCs
Processes:
winver.exeExplorer.EXEc4c81804aeb37310e47437169bb16040N.exepid process 2456 winver.exe 3476 Explorer.EXE 3476 Explorer.EXE 4000 c4c81804aeb37310e47437169bb16040N.exe -
Suspicious use of UnmapMainImage 1 IoCs
Processes:
Explorer.EXEpid process 3476 Explorer.EXE -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
c4c81804aeb37310e47437169bb16040N.exewinver.exedescription pid process target process PID 4000 wrote to memory of 2456 4000 c4c81804aeb37310e47437169bb16040N.exe winver.exe PID 4000 wrote to memory of 2456 4000 c4c81804aeb37310e47437169bb16040N.exe winver.exe PID 4000 wrote to memory of 2456 4000 c4c81804aeb37310e47437169bb16040N.exe winver.exe PID 4000 wrote to memory of 2456 4000 c4c81804aeb37310e47437169bb16040N.exe winver.exe PID 2456 wrote to memory of 3476 2456 winver.exe Explorer.EXE PID 4000 wrote to memory of 3476 4000 c4c81804aeb37310e47437169bb16040N.exe Explorer.EXE PID 4000 wrote to memory of 1120 4000 c4c81804aeb37310e47437169bb16040N.exe sihost.exe
Processes
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C:\Windows\system32\sihost.exesihost.exe1⤵
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
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C:\Users\Admin\AppData\Local\Temp\c4c81804aeb37310e47437169bb16040N.exe"C:\Users\Admin\AppData\Local\Temp\c4c81804aeb37310e47437169bb16040N.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\winver.exewinver3⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2456 -s 3004⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4000 -s 9323⤵
- Program crash
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman1⤵
- Modifies data under HKEY_USERS
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 2456 -ip 24561⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4000 -ip 40001⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/1120-13-0x00000000005A0000-0x00000000005A6000-memory.dmpFilesize
24KB
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memory/1120-19-0x00000000005A0000-0x00000000005A6000-memory.dmpFilesize
24KB
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memory/3476-4-0x00000000004A0000-0x00000000004A6000-memory.dmpFilesize
24KB
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memory/3476-5-0x00000000004A0000-0x00000000004A6000-memory.dmpFilesize
24KB
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memory/3476-11-0x0000000002780000-0x0000000002786000-memory.dmpFilesize
24KB
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memory/4000-1-0x0000000004540000-0x0000000004B98000-memory.dmpFilesize
6.3MB
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memory/4000-2-0x0000000003DC0000-0x0000000003DC1000-memory.dmpFilesize
4KB
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memory/4000-6-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
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memory/4000-10-0x0000000005A90000-0x0000000006490000-memory.dmpFilesize
10.0MB
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memory/4000-14-0x0000000005A90000-0x0000000006490000-memory.dmpFilesize
10.0MB
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memory/4000-18-0x0000000004540000-0x0000000004B98000-memory.dmpFilesize
6.3MB