Analysis
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max time kernel
183s -
max time network
198s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
06/12/2022, 22:11
Static task
static1
Behavioral task
behavioral1
Sample
a947f12146bac968e04f955ec03fd56e7f94343b98f9b49eb988e9b6aefc3f8f.exe
Resource
win10v2004-20221111-en
General
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Target
a947f12146bac968e04f955ec03fd56e7f94343b98f9b49eb988e9b6aefc3f8f.exe
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Size
423KB
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MD5
9e9df779a547699c79f19a29a4ec7650
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SHA1
5b2aa643807e06dd7064fc94a997e44b213c6163
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SHA256
a947f12146bac968e04f955ec03fd56e7f94343b98f9b49eb988e9b6aefc3f8f
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SHA512
78798143c34ed26ad0278162aee244670385f33b9666e7b038b51f3bc9bfda74fac4459a0369f707311fc171d4302a6d4229c2d08a0063bc137cb48841317638
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SSDEEP
6144:wCbqZQLNLxw5KUYAilo5CCQllUuyMTljofAWcoBlC7NOUs0yaVe:wC+Z6NFw5p2Cb8lobcWC7NOH3
Malware Config
Extracted
amadey
3.50
31.41.244.167/v7eWcjs/index.php
Signatures
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Detect Amadey credential stealer module 2 IoCs
resource yara_rule behavioral1/files/0x0008000000022e62-147.dat amadey_cred_module behavioral1/files/0x0008000000022e62-148.dat amadey_cred_module -
Blocklisted process makes network request 1 IoCs
flow pid Process 93 4244 rundll32.exe -
Downloads MZ/PE file
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Executes dropped EXE 2 IoCs
pid Process 4280 gntuud.exe 2400 gntuud.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation a947f12146bac968e04f955ec03fd56e7f94343b98f9b49eb988e9b6aefc3f8f.exe Key value queried \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation gntuud.exe -
Loads dropped DLL 1 IoCs
pid Process 4244 rundll32.exe -
Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
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Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook rundll32.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Program crash 2 IoCs
pid pid_target Process procid_target 1312 5088 WerFault.exe 82 4512 2400 WerFault.exe 92 -
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1824 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 4244 rundll32.exe 4244 rundll32.exe 4244 rundll32.exe 4244 rundll32.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 5088 wrote to memory of 4280 5088 a947f12146bac968e04f955ec03fd56e7f94343b98f9b49eb988e9b6aefc3f8f.exe 83 PID 5088 wrote to memory of 4280 5088 a947f12146bac968e04f955ec03fd56e7f94343b98f9b49eb988e9b6aefc3f8f.exe 83 PID 5088 wrote to memory of 4280 5088 a947f12146bac968e04f955ec03fd56e7f94343b98f9b49eb988e9b6aefc3f8f.exe 83 PID 4280 wrote to memory of 1824 4280 gntuud.exe 87 PID 4280 wrote to memory of 1824 4280 gntuud.exe 87 PID 4280 wrote to memory of 1824 4280 gntuud.exe 87 PID 4280 wrote to memory of 4244 4280 gntuud.exe 98 PID 4280 wrote to memory of 4244 4280 gntuud.exe 98 PID 4280 wrote to memory of 4244 4280 gntuud.exe 98 -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a947f12146bac968e04f955ec03fd56e7f94343b98f9b49eb988e9b6aefc3f8f.exe"C:\Users\Admin\AppData\Local\Temp\a947f12146bac968e04f955ec03fd56e7f94343b98f9b49eb988e9b6aefc3f8f.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5088 -
C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe"C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe"2⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4280 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN gntuud.exe /TR "C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe" /F3⤵
- Creates scheduled task(s)
PID:1824
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll, Main3⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- outlook_win_path
PID:4244
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 9042⤵
- Program crash
PID:1312
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 5088 -ip 50881⤵PID:2948
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C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeC:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe1⤵
- Executes dropped EXE
PID:2400 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2400 -s 4242⤵
- Program crash
PID:4512
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 2400 -ip 24001⤵PID:964
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
423KB
MD59e9df779a547699c79f19a29a4ec7650
SHA15b2aa643807e06dd7064fc94a997e44b213c6163
SHA256a947f12146bac968e04f955ec03fd56e7f94343b98f9b49eb988e9b6aefc3f8f
SHA51278798143c34ed26ad0278162aee244670385f33b9666e7b038b51f3bc9bfda74fac4459a0369f707311fc171d4302a6d4229c2d08a0063bc137cb48841317638
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Filesize
423KB
MD59e9df779a547699c79f19a29a4ec7650
SHA15b2aa643807e06dd7064fc94a997e44b213c6163
SHA256a947f12146bac968e04f955ec03fd56e7f94343b98f9b49eb988e9b6aefc3f8f
SHA51278798143c34ed26ad0278162aee244670385f33b9666e7b038b51f3bc9bfda74fac4459a0369f707311fc171d4302a6d4229c2d08a0063bc137cb48841317638
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Filesize
423KB
MD59e9df779a547699c79f19a29a4ec7650
SHA15b2aa643807e06dd7064fc94a997e44b213c6163
SHA256a947f12146bac968e04f955ec03fd56e7f94343b98f9b49eb988e9b6aefc3f8f
SHA51278798143c34ed26ad0278162aee244670385f33b9666e7b038b51f3bc9bfda74fac4459a0369f707311fc171d4302a6d4229c2d08a0063bc137cb48841317638
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Filesize
126KB
MD5aebf8cd9ea982decded5ee6f3777c6d7
SHA1406e723158cd5697503d1d04839d3bc7a5051603
SHA256104af593683398f0980f2c86e6513b8c1b7dededc1f924d4693ad92410d51a62
SHA512f28fbb9b155348a6aca1105abf6f88640bb68374c07e023a7c9e06577006002d09b53b7629923c2486d7e9811f7254a296d19e566940077431e5089b06a13981
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Filesize
126KB
MD5aebf8cd9ea982decded5ee6f3777c6d7
SHA1406e723158cd5697503d1d04839d3bc7a5051603
SHA256104af593683398f0980f2c86e6513b8c1b7dededc1f924d4693ad92410d51a62
SHA512f28fbb9b155348a6aca1105abf6f88640bb68374c07e023a7c9e06577006002d09b53b7629923c2486d7e9811f7254a296d19e566940077431e5089b06a13981