Analysis
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max time kernel
151s -
max time network
159s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
06/11/2022, 15:01
Static task
static1
Behavioral task
behavioral1
Sample
ea976ec5491e8a718db5b3ff25ab04c23b8bebfe6126f24e1051b499c8eb14bf.exe
Resource
win7-20220812-en
windows7-x64
12 signatures
150 seconds
Behavioral task
behavioral2
Sample
ea976ec5491e8a718db5b3ff25ab04c23b8bebfe6126f24e1051b499c8eb14bf.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
12 signatures
150 seconds
General
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Target
ea976ec5491e8a718db5b3ff25ab04c23b8bebfe6126f24e1051b499c8eb14bf.exe
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Size
96KB
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MD5
05cdad7a6fac67016658691447a38fe2
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SHA1
114fa119fec8e026e5917078f533cf2d62883d78
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SHA256
ea976ec5491e8a718db5b3ff25ab04c23b8bebfe6126f24e1051b499c8eb14bf
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SHA512
58f2119a63d1a2cade001b7d6f3cf28adde0a9078242161f06aacec4502cd37adffcd9b663fa86e490124f15cdeb440f097b719c16ac5273894bcda0ab7128f8
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SSDEEP
1536:loo9yBTMG4lc5cfM0I2YSRLhCDe4AcsWZWnVGHCGFs1fyqP/kw0sS7jlF:l1+MG2EaMd2YS7C7Al7WBs1fyXw0fvl
Score
10/10
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" ea976ec5491e8a718db5b3ff25ab04c23b8bebfe6126f24e1051b499c8eb14bf.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" ciiji.exe -
Executes dropped EXE 2 IoCs
pid Process 1836 ciiji.exe 1976 ciiji.exe -
resource yara_rule behavioral2/memory/4408-135-0x0000000000400000-0x0000000000429000-memory.dmp upx behavioral2/memory/4408-137-0x0000000000400000-0x0000000000429000-memory.dmp upx behavioral2/memory/4408-138-0x0000000000400000-0x0000000000429000-memory.dmp upx behavioral2/memory/4408-141-0x0000000000400000-0x0000000000429000-memory.dmp upx behavioral2/memory/1976-155-0x0000000000400000-0x0000000000429000-memory.dmp upx behavioral2/memory/4408-156-0x0000000000400000-0x0000000000429000-memory.dmp upx behavioral2/memory/1976-157-0x0000000000400000-0x0000000000429000-memory.dmp upx -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation ea976ec5491e8a718db5b3ff25ab04c23b8bebfe6126f24e1051b499c8eb14bf.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiji = "C:\\Users\\Admin\\ciiji.exe /b" ciiji.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiji = "C:\\Users\\Admin\\ciiji.exe /y" ciiji.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiji = "C:\\Users\\Admin\\ciiji.exe /p" ciiji.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiji = "C:\\Users\\Admin\\ciiji.exe /w" ciiji.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiji = "C:\\Users\\Admin\\ciiji.exe /z" ciiji.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiji = "C:\\Users\\Admin\\ciiji.exe /k" ciiji.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiji = "C:\\Users\\Admin\\ciiji.exe /h" ciiji.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiji = "C:\\Users\\Admin\\ciiji.exe /t" ciiji.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiji = "C:\\Users\\Admin\\ciiji.exe /f" ciiji.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiji = "C:\\Users\\Admin\\ciiji.exe /u" ciiji.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiji = "C:\\Users\\Admin\\ciiji.exe /c" ciiji.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiji = "C:\\Users\\Admin\\ciiji.exe /j" ciiji.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiji = "C:\\Users\\Admin\\ciiji.exe /m" ciiji.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiji = "C:\\Users\\Admin\\ciiji.exe /a" ciiji.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiji = "C:\\Users\\Admin\\ciiji.exe /o" ciiji.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiji = "C:\\Users\\Admin\\ciiji.exe /r" ciiji.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiji = "C:\\Users\\Admin\\ciiji.exe /s" ciiji.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiji = "C:\\Users\\Admin\\ciiji.exe /d" ea976ec5491e8a718db5b3ff25ab04c23b8bebfe6126f24e1051b499c8eb14bf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiji = "C:\\Users\\Admin\\ciiji.exe /l" ciiji.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiji = "C:\\Users\\Admin\\ciiji.exe /q" ciiji.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ ea976ec5491e8a718db5b3ff25ab04c23b8bebfe6126f24e1051b499c8eb14bf.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiji = "C:\\Users\\Admin\\ciiji.exe /d" ciiji.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiji = "C:\\Users\\Admin\\ciiji.exe /e" ciiji.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiji = "C:\\Users\\Admin\\ciiji.exe /x" ciiji.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ ciiji.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiji = "C:\\Users\\Admin\\ciiji.exe /n" ciiji.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiji = "C:\\Users\\Admin\\ciiji.exe /g" ciiji.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiji = "C:\\Users\\Admin\\ciiji.exe /i" ciiji.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiji = "C:\\Users\\Admin\\ciiji.exe /v" ciiji.exe -
Maps connected drives based on registry 3 TTPs 4 IoCs
Disk information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum ea976ec5491e8a718db5b3ff25ab04c23b8bebfe6126f24e1051b499c8eb14bf.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 ea976ec5491e8a718db5b3ff25ab04c23b8bebfe6126f24e1051b499c8eb14bf.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum ciiji.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 ciiji.exe -
Drops autorun.inf file 1 TTPs 1 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.
description ioc Process File opened for modification C:\Users\Admin\c\autorun.inf ciiji.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4548 set thread context of 4408 4548 ea976ec5491e8a718db5b3ff25ab04c23b8bebfe6126f24e1051b499c8eb14bf.exe 81 PID 1836 set thread context of 1976 1836 ciiji.exe 83 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4408 ea976ec5491e8a718db5b3ff25ab04c23b8bebfe6126f24e1051b499c8eb14bf.exe 4408 ea976ec5491e8a718db5b3ff25ab04c23b8bebfe6126f24e1051b499c8eb14bf.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe 1976 ciiji.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 4548 ea976ec5491e8a718db5b3ff25ab04c23b8bebfe6126f24e1051b499c8eb14bf.exe 4408 ea976ec5491e8a718db5b3ff25ab04c23b8bebfe6126f24e1051b499c8eb14bf.exe 1836 ciiji.exe 1976 ciiji.exe -
Suspicious use of WriteProcessMemory 19 IoCs
description pid Process procid_target PID 4548 wrote to memory of 4408 4548 ea976ec5491e8a718db5b3ff25ab04c23b8bebfe6126f24e1051b499c8eb14bf.exe 81 PID 4548 wrote to memory of 4408 4548 ea976ec5491e8a718db5b3ff25ab04c23b8bebfe6126f24e1051b499c8eb14bf.exe 81 PID 4548 wrote to memory of 4408 4548 ea976ec5491e8a718db5b3ff25ab04c23b8bebfe6126f24e1051b499c8eb14bf.exe 81 PID 4548 wrote to memory of 4408 4548 ea976ec5491e8a718db5b3ff25ab04c23b8bebfe6126f24e1051b499c8eb14bf.exe 81 PID 4548 wrote to memory of 4408 4548 ea976ec5491e8a718db5b3ff25ab04c23b8bebfe6126f24e1051b499c8eb14bf.exe 81 PID 4548 wrote to memory of 4408 4548 ea976ec5491e8a718db5b3ff25ab04c23b8bebfe6126f24e1051b499c8eb14bf.exe 81 PID 4548 wrote to memory of 4408 4548 ea976ec5491e8a718db5b3ff25ab04c23b8bebfe6126f24e1051b499c8eb14bf.exe 81 PID 4548 wrote to memory of 4408 4548 ea976ec5491e8a718db5b3ff25ab04c23b8bebfe6126f24e1051b499c8eb14bf.exe 81 PID 4408 wrote to memory of 1836 4408 ea976ec5491e8a718db5b3ff25ab04c23b8bebfe6126f24e1051b499c8eb14bf.exe 82 PID 4408 wrote to memory of 1836 4408 ea976ec5491e8a718db5b3ff25ab04c23b8bebfe6126f24e1051b499c8eb14bf.exe 82 PID 4408 wrote to memory of 1836 4408 ea976ec5491e8a718db5b3ff25ab04c23b8bebfe6126f24e1051b499c8eb14bf.exe 82 PID 1836 wrote to memory of 1976 1836 ciiji.exe 83 PID 1836 wrote to memory of 1976 1836 ciiji.exe 83 PID 1836 wrote to memory of 1976 1836 ciiji.exe 83 PID 1836 wrote to memory of 1976 1836 ciiji.exe 83 PID 1836 wrote to memory of 1976 1836 ciiji.exe 83 PID 1836 wrote to memory of 1976 1836 ciiji.exe 83 PID 1836 wrote to memory of 1976 1836 ciiji.exe 83 PID 1836 wrote to memory of 1976 1836 ciiji.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\ea976ec5491e8a718db5b3ff25ab04c23b8bebfe6126f24e1051b499c8eb14bf.exe"C:\Users\Admin\AppData\Local\Temp\ea976ec5491e8a718db5b3ff25ab04c23b8bebfe6126f24e1051b499c8eb14bf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4548 -
C:\Users\Admin\AppData\Local\Temp\ea976ec5491e8a718db5b3ff25ab04c23b8bebfe6126f24e1051b499c8eb14bf.exe712⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4408 -
C:\Users\Admin\ciiji.exe"C:\Users\Admin\ciiji.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1836 -
C:\Users\Admin\ciiji.exe714⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Maps connected drives based on registry
- Drops autorun.inf file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1976
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
96KB
MD505cdad7a6fac67016658691447a38fe2
SHA1114fa119fec8e026e5917078f533cf2d62883d78
SHA256ea976ec5491e8a718db5b3ff25ab04c23b8bebfe6126f24e1051b499c8eb14bf
SHA51258f2119a63d1a2cade001b7d6f3cf28adde0a9078242161f06aacec4502cd37adffcd9b663fa86e490124f15cdeb440f097b719c16ac5273894bcda0ab7128f8
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Filesize
96KB
MD505cdad7a6fac67016658691447a38fe2
SHA1114fa119fec8e026e5917078f533cf2d62883d78
SHA256ea976ec5491e8a718db5b3ff25ab04c23b8bebfe6126f24e1051b499c8eb14bf
SHA51258f2119a63d1a2cade001b7d6f3cf28adde0a9078242161f06aacec4502cd37adffcd9b663fa86e490124f15cdeb440f097b719c16ac5273894bcda0ab7128f8
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Filesize
96KB
MD505cdad7a6fac67016658691447a38fe2
SHA1114fa119fec8e026e5917078f533cf2d62883d78
SHA256ea976ec5491e8a718db5b3ff25ab04c23b8bebfe6126f24e1051b499c8eb14bf
SHA51258f2119a63d1a2cade001b7d6f3cf28adde0a9078242161f06aacec4502cd37adffcd9b663fa86e490124f15cdeb440f097b719c16ac5273894bcda0ab7128f8