Analysis
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max time kernel
191s -
max time network
192s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
01-12-2022 16:36
Behavioral task
behavioral1
Sample
94b61d944de4da19ac484a97f686e831.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
94b61d944de4da19ac484a97f686e831.exe
Resource
win10v2004-20221111-en
General
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Target
94b61d944de4da19ac484a97f686e831.exe
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Size
241KB
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MD5
94b61d944de4da19ac484a97f686e831
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SHA1
d966b6a477aa16a8a9aa9483557145ae02d718d2
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SHA256
605ad6bb1657c8e2513085d2f62571b133e8def1f5f14e02dc25d38763e41559
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SHA512
cd4f85c0aea29f0cf735862bdd1f5154a305301451f530325f0821b3107cbcfb86975ba4840416fc784e92094bdb71c62eeae9e46c536460fa4600c183feab53
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SSDEEP
6144:H5dzwO5jJFSIijqVSS8LfZujp8DqqRLuu:HZkqx8Nujp+qq0u
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
Processes:
resource yara_rule C:\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll amadey_cred_module C:\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll amadey_cred_module -
Blocklisted process makes network request 1 IoCs
Processes:
rundll32.exeflow pid process 44 2824 rundll32.exe -
Downloads MZ/PE file
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Executes dropped EXE 3 IoCs
Processes:
gntuud.exegntuud.exegntuud.exepid process 1524 gntuud.exe 4116 gntuud.exe 3800 gntuud.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
94b61d944de4da19ac484a97f686e831.exegntuud.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation 94b61d944de4da19ac484a97f686e831.exe Key value queried \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation gntuud.exe -
Loads dropped DLL 1 IoCs
Processes:
rundll32.exepid process 2824 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
Processes:
rundll32.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\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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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
rundll32.exepid process 2824 rundll32.exe 2824 rundll32.exe 2824 rundll32.exe 2824 rundll32.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
94b61d944de4da19ac484a97f686e831.exegntuud.exedescription pid process target process PID 4248 wrote to memory of 1524 4248 94b61d944de4da19ac484a97f686e831.exe gntuud.exe PID 4248 wrote to memory of 1524 4248 94b61d944de4da19ac484a97f686e831.exe gntuud.exe PID 4248 wrote to memory of 1524 4248 94b61d944de4da19ac484a97f686e831.exe gntuud.exe PID 1524 wrote to memory of 3460 1524 gntuud.exe schtasks.exe PID 1524 wrote to memory of 3460 1524 gntuud.exe schtasks.exe PID 1524 wrote to memory of 3460 1524 gntuud.exe schtasks.exe PID 1524 wrote to memory of 2824 1524 gntuud.exe rundll32.exe PID 1524 wrote to memory of 2824 1524 gntuud.exe rundll32.exe PID 1524 wrote to memory of 2824 1524 gntuud.exe rundll32.exe -
outlook_win_path 1 IoCs
Processes:
rundll32.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\94b61d944de4da19ac484a97f686e831.exe"C:\Users\Admin\AppData\Local\Temp\94b61d944de4da19ac484a97f686e831.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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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
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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)
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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
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C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeC:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe1⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeC:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe1⤵
- Executes dropped EXE
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeFilesize
241KB
MD594b61d944de4da19ac484a97f686e831
SHA1d966b6a477aa16a8a9aa9483557145ae02d718d2
SHA256605ad6bb1657c8e2513085d2f62571b133e8def1f5f14e02dc25d38763e41559
SHA512cd4f85c0aea29f0cf735862bdd1f5154a305301451f530325f0821b3107cbcfb86975ba4840416fc784e92094bdb71c62eeae9e46c536460fa4600c183feab53
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C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeFilesize
241KB
MD594b61d944de4da19ac484a97f686e831
SHA1d966b6a477aa16a8a9aa9483557145ae02d718d2
SHA256605ad6bb1657c8e2513085d2f62571b133e8def1f5f14e02dc25d38763e41559
SHA512cd4f85c0aea29f0cf735862bdd1f5154a305301451f530325f0821b3107cbcfb86975ba4840416fc784e92094bdb71c62eeae9e46c536460fa4600c183feab53
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C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeFilesize
241KB
MD594b61d944de4da19ac484a97f686e831
SHA1d966b6a477aa16a8a9aa9483557145ae02d718d2
SHA256605ad6bb1657c8e2513085d2f62571b133e8def1f5f14e02dc25d38763e41559
SHA512cd4f85c0aea29f0cf735862bdd1f5154a305301451f530325f0821b3107cbcfb86975ba4840416fc784e92094bdb71c62eeae9e46c536460fa4600c183feab53
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C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeFilesize
241KB
MD594b61d944de4da19ac484a97f686e831
SHA1d966b6a477aa16a8a9aa9483557145ae02d718d2
SHA256605ad6bb1657c8e2513085d2f62571b133e8def1f5f14e02dc25d38763e41559
SHA512cd4f85c0aea29f0cf735862bdd1f5154a305301451f530325f0821b3107cbcfb86975ba4840416fc784e92094bdb71c62eeae9e46c536460fa4600c183feab53
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C:\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dllFilesize
126KB
MD5aebf8cd9ea982decded5ee6f3777c6d7
SHA1406e723158cd5697503d1d04839d3bc7a5051603
SHA256104af593683398f0980f2c86e6513b8c1b7dededc1f924d4693ad92410d51a62
SHA512f28fbb9b155348a6aca1105abf6f88640bb68374c07e023a7c9e06577006002d09b53b7629923c2486d7e9811f7254a296d19e566940077431e5089b06a13981
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C:\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dllFilesize
126KB
MD5aebf8cd9ea982decded5ee6f3777c6d7
SHA1406e723158cd5697503d1d04839d3bc7a5051603
SHA256104af593683398f0980f2c86e6513b8c1b7dededc1f924d4693ad92410d51a62
SHA512f28fbb9b155348a6aca1105abf6f88640bb68374c07e023a7c9e06577006002d09b53b7629923c2486d7e9811f7254a296d19e566940077431e5089b06a13981
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memory/1524-132-0x0000000000000000-mapping.dmp
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memory/2824-137-0x0000000000000000-mapping.dmp
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memory/3460-135-0x0000000000000000-mapping.dmp