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Analysis
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max time kernel
151s -
max time network
142s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system -
submitted
15/10/2023, 19:42
Static task
static1
Behavioral task
behavioral1
Sample
a4c5b1b00a0f260c2dafa1c753018970_exe32.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
a4c5b1b00a0f260c2dafa1c753018970_exe32.exe
Resource
win10v2004-20230915-en
General
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Target
a4c5b1b00a0f260c2dafa1c753018970_exe32.exe
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Size
144KB
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MD5
a4c5b1b00a0f260c2dafa1c753018970
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SHA1
4fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7
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SHA256
9a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2
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SHA512
e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e
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SSDEEP
1536:PJg/NVWIHWAmJihqbzWh9GuUKzzcjoNP3ojR6MUAhCLR3Jz4kahylrfR+yIMpmG5:arVSlGh9Gx0zcjoRmR1Ud4kYKkOmHlI
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" a4c5b1b00a0f260c2dafa1c753018970_exe32.exe -
Executes dropped EXE 1 IoCs
pid Process 2780 zuiriaw.exe -
Loads dropped DLL 7 IoCs
pid Process 2420 a4c5b1b00a0f260c2dafa1c753018970_exe32.exe 2420 a4c5b1b00a0f260c2dafa1c753018970_exe32.exe 2640 WerFault.exe 2640 WerFault.exe 2640 WerFault.exe 2640 WerFault.exe 2640 WerFault.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-607259312-1573743425-2763420908-1000\Software\Microsoft\Windows\CurrentVersion\Run\zuiriaw = "C:\\Users\\Admin\\zuiriaw.exe /q" a4c5b1b00a0f260c2dafa1c753018970_exe32.exe -
Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum a4c5b1b00a0f260c2dafa1c753018970_exe32.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 a4c5b1b00a0f260c2dafa1c753018970_exe32.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2144 set thread context of 2420 2144 a4c5b1b00a0f260c2dafa1c753018970_exe32.exe 28 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
pid pid_target Process procid_target 2640 2780 WerFault.exe 29 -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2420 a4c5b1b00a0f260c2dafa1c753018970_exe32.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 2144 a4c5b1b00a0f260c2dafa1c753018970_exe32.exe 2420 a4c5b1b00a0f260c2dafa1c753018970_exe32.exe 2780 zuiriaw.exe -
Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 2144 wrote to memory of 2420 2144 a4c5b1b00a0f260c2dafa1c753018970_exe32.exe 28 PID 2144 wrote to memory of 2420 2144 a4c5b1b00a0f260c2dafa1c753018970_exe32.exe 28 PID 2144 wrote to memory of 2420 2144 a4c5b1b00a0f260c2dafa1c753018970_exe32.exe 28 PID 2144 wrote to memory of 2420 2144 a4c5b1b00a0f260c2dafa1c753018970_exe32.exe 28 PID 2144 wrote to memory of 2420 2144 a4c5b1b00a0f260c2dafa1c753018970_exe32.exe 28 PID 2144 wrote to memory of 2420 2144 a4c5b1b00a0f260c2dafa1c753018970_exe32.exe 28 PID 2144 wrote to memory of 2420 2144 a4c5b1b00a0f260c2dafa1c753018970_exe32.exe 28 PID 2144 wrote to memory of 2420 2144 a4c5b1b00a0f260c2dafa1c753018970_exe32.exe 28 PID 2144 wrote to memory of 2420 2144 a4c5b1b00a0f260c2dafa1c753018970_exe32.exe 28 PID 2144 wrote to memory of 2420 2144 a4c5b1b00a0f260c2dafa1c753018970_exe32.exe 28 PID 2420 wrote to memory of 2780 2420 a4c5b1b00a0f260c2dafa1c753018970_exe32.exe 29 PID 2420 wrote to memory of 2780 2420 a4c5b1b00a0f260c2dafa1c753018970_exe32.exe 29 PID 2420 wrote to memory of 2780 2420 a4c5b1b00a0f260c2dafa1c753018970_exe32.exe 29 PID 2420 wrote to memory of 2780 2420 a4c5b1b00a0f260c2dafa1c753018970_exe32.exe 29 PID 2780 wrote to memory of 2640 2780 zuiriaw.exe 30 PID 2780 wrote to memory of 2640 2780 zuiriaw.exe 30 PID 2780 wrote to memory of 2640 2780 zuiriaw.exe 30 PID 2780 wrote to memory of 2640 2780 zuiriaw.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\a4c5b1b00a0f260c2dafa1c753018970_exe32.exe"C:\Users\Admin\AppData\Local\Temp\a4c5b1b00a0f260c2dafa1c753018970_exe32.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2144 -
C:\Users\Admin\AppData\Local\Temp\a4c5b1b00a0f260c2dafa1c753018970_exe32.exe712⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2420 -
C:\Users\Admin\zuiriaw.exe"C:\Users\Admin\zuiriaw.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2780 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2780 -s 1884⤵
- Loads dropped DLL
- Program crash
PID:2640
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Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Hide Artifacts
1Hidden Files and Directories
1Modify Registry
2Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
144KB
MD5a4c5b1b00a0f260c2dafa1c753018970
SHA14fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7
SHA2569a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2
SHA512e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e
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Filesize
144KB
MD5a4c5b1b00a0f260c2dafa1c753018970
SHA14fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7
SHA2569a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2
SHA512e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e
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Filesize
144KB
MD5a4c5b1b00a0f260c2dafa1c753018970
SHA14fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7
SHA2569a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2
SHA512e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e
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Filesize
144KB
MD5a4c5b1b00a0f260c2dafa1c753018970
SHA14fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7
SHA2569a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2
SHA512e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e
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Filesize
144KB
MD5a4c5b1b00a0f260c2dafa1c753018970
SHA14fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7
SHA2569a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2
SHA512e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e
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Filesize
144KB
MD5a4c5b1b00a0f260c2dafa1c753018970
SHA14fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7
SHA2569a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2
SHA512e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e
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Filesize
144KB
MD5a4c5b1b00a0f260c2dafa1c753018970
SHA14fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7
SHA2569a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2
SHA512e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e
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Filesize
144KB
MD5a4c5b1b00a0f260c2dafa1c753018970
SHA14fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7
SHA2569a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2
SHA512e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e
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Filesize
144KB
MD5a4c5b1b00a0f260c2dafa1c753018970
SHA14fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7
SHA2569a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2
SHA512e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e
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Filesize
144KB
MD5a4c5b1b00a0f260c2dafa1c753018970
SHA14fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7
SHA2569a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2
SHA512e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e