Analysis
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max time kernel
153s -
max time network
60s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
20/10/2022, 01:52
Static task
static1
Behavioral task
behavioral1
Sample
ef8f9daace7b98d1449384364741604d352ed4334040b2e23cff7b2a4184d508.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
ef8f9daace7b98d1449384364741604d352ed4334040b2e23cff7b2a4184d508.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
ef8f9daace7b98d1449384364741604d352ed4334040b2e23cff7b2a4184d508.exe
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Size
268KB
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MD5
751b225551b2f4a5ef49a9ddb788efd0
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SHA1
5a551f490943eaf51616b6219d087109cbac8eb1
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SHA256
ef8f9daace7b98d1449384364741604d352ed4334040b2e23cff7b2a4184d508
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SHA512
d126b649ca32d23a4e7eb0437023a656882916c3dd6a3bdc91caf8111e315d780e0f502d07247a25475f5fc8e80bb952cfbd796f368f2380a963bc093711b3ba
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SSDEEP
3072:csSQrIhgDY1zuBvLen8DlZniqBXv7yOsWvgbsmIHX0WRIh:cCMP1qFy8xZnisyOs2tHEWRe
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-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" ef8f9daace7b98d1449384364741604d352ed4334040b2e23cff7b2a4184d508.exe Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" waiisen.exe -
Executes dropped EXE 1 IoCs
pid Process 948 waiisen.exe -
Loads dropped DLL 2 IoCs
pid Process 1324 ef8f9daace7b98d1449384364741604d352ed4334040b2e23cff7b2a4184d508.exe 1324 ef8f9daace7b98d1449384364741604d352ed4334040b2e23cff7b2a4184d508.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\waiisen = "C:\\Users\\Admin\\waiisen.exe /v" waiisen.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\waiisen = "C:\\Users\\Admin\\waiisen.exe /w" waiisen.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\waiisen = "C:\\Users\\Admin\\waiisen.exe /y" waiisen.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\waiisen = "C:\\Users\\Admin\\waiisen.exe /r" waiisen.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\waiisen = "C:\\Users\\Admin\\waiisen.exe /f" waiisen.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\waiisen = "C:\\Users\\Admin\\waiisen.exe /u" waiisen.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\ ef8f9daace7b98d1449384364741604d352ed4334040b2e23cff7b2a4184d508.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\waiisen = "C:\\Users\\Admin\\waiisen.exe /z" waiisen.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\waiisen = "C:\\Users\\Admin\\waiisen.exe /j" waiisen.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\waiisen = "C:\\Users\\Admin\\waiisen.exe /g" waiisen.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\waiisen = "C:\\Users\\Admin\\waiisen.exe /t" waiisen.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\waiisen = "C:\\Users\\Admin\\waiisen.exe /m" waiisen.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\waiisen = "C:\\Users\\Admin\\waiisen.exe /i" waiisen.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\waiisen = "C:\\Users\\Admin\\waiisen.exe /c" waiisen.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\waiisen = "C:\\Users\\Admin\\waiisen.exe /s" waiisen.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\waiisen = "C:\\Users\\Admin\\waiisen.exe /d" waiisen.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\waiisen = "C:\\Users\\Admin\\waiisen.exe /a" waiisen.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\waiisen = "C:\\Users\\Admin\\waiisen.exe /c" ef8f9daace7b98d1449384364741604d352ed4334040b2e23cff7b2a4184d508.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\ waiisen.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\waiisen = "C:\\Users\\Admin\\waiisen.exe /o" waiisen.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\waiisen = "C:\\Users\\Admin\\waiisen.exe /n" waiisen.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\waiisen = "C:\\Users\\Admin\\waiisen.exe /x" waiisen.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\waiisen = "C:\\Users\\Admin\\waiisen.exe /b" waiisen.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\waiisen = "C:\\Users\\Admin\\waiisen.exe /e" waiisen.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\waiisen = "C:\\Users\\Admin\\waiisen.exe /l" waiisen.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\waiisen = "C:\\Users\\Admin\\waiisen.exe /k" waiisen.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\waiisen = "C:\\Users\\Admin\\waiisen.exe /q" waiisen.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\waiisen = "C:\\Users\\Admin\\waiisen.exe /p" waiisen.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\waiisen = "C:\\Users\\Admin\\waiisen.exe /h" waiisen.exe -
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 1324 ef8f9daace7b98d1449384364741604d352ed4334040b2e23cff7b2a4184d508.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe 948 waiisen.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1324 ef8f9daace7b98d1449384364741604d352ed4334040b2e23cff7b2a4184d508.exe 948 waiisen.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1324 wrote to memory of 948 1324 ef8f9daace7b98d1449384364741604d352ed4334040b2e23cff7b2a4184d508.exe 28 PID 1324 wrote to memory of 948 1324 ef8f9daace7b98d1449384364741604d352ed4334040b2e23cff7b2a4184d508.exe 28 PID 1324 wrote to memory of 948 1324 ef8f9daace7b98d1449384364741604d352ed4334040b2e23cff7b2a4184d508.exe 28 PID 1324 wrote to memory of 948 1324 ef8f9daace7b98d1449384364741604d352ed4334040b2e23cff7b2a4184d508.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\ef8f9daace7b98d1449384364741604d352ed4334040b2e23cff7b2a4184d508.exe"C:\Users\Admin\AppData\Local\Temp\ef8f9daace7b98d1449384364741604d352ed4334040b2e23cff7b2a4184d508.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1324 -
C:\Users\Admin\waiisen.exe"C:\Users\Admin\waiisen.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:948
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
268KB
MD5c3abdc49d1793c6a5d33c0f40003354d
SHA177e0b4951999abe926990d0f30fd4c8037eca6ce
SHA2568e5034f8ee7d4a1c799ddac5aeffb510bef4646cc9b835237760fb2e3e3e9195
SHA512990290ee9d196359a63fe39120682679e9c2fa06d3944adbc8c3cb194f213e94ed6ed8f276692e78a30856c8d280deaf2340ee4c51c275d408a03823a6e0377c
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Filesize
268KB
MD5c3abdc49d1793c6a5d33c0f40003354d
SHA177e0b4951999abe926990d0f30fd4c8037eca6ce
SHA2568e5034f8ee7d4a1c799ddac5aeffb510bef4646cc9b835237760fb2e3e3e9195
SHA512990290ee9d196359a63fe39120682679e9c2fa06d3944adbc8c3cb194f213e94ed6ed8f276692e78a30856c8d280deaf2340ee4c51c275d408a03823a6e0377c
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Filesize
268KB
MD5c3abdc49d1793c6a5d33c0f40003354d
SHA177e0b4951999abe926990d0f30fd4c8037eca6ce
SHA2568e5034f8ee7d4a1c799ddac5aeffb510bef4646cc9b835237760fb2e3e3e9195
SHA512990290ee9d196359a63fe39120682679e9c2fa06d3944adbc8c3cb194f213e94ed6ed8f276692e78a30856c8d280deaf2340ee4c51c275d408a03823a6e0377c
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Filesize
268KB
MD5c3abdc49d1793c6a5d33c0f40003354d
SHA177e0b4951999abe926990d0f30fd4c8037eca6ce
SHA2568e5034f8ee7d4a1c799ddac5aeffb510bef4646cc9b835237760fb2e3e3e9195
SHA512990290ee9d196359a63fe39120682679e9c2fa06d3944adbc8c3cb194f213e94ed6ed8f276692e78a30856c8d280deaf2340ee4c51c275d408a03823a6e0377c