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Analysis
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max time kernel
149s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20230712-en -
resource tags
arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system -
submitted
18/07/2023, 13:53
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
b838edd541829b_JC.exe
Resource
win7-20230712-en
windows7-x64
5 signatures
150 seconds
Behavioral task
behavioral2
Sample
b838edd541829b_JC.exe
Resource
win10v2004-20230703-en
windows10-2004-x64
5 signatures
150 seconds
General
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Target
b838edd541829b_JC.exe
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Size
2.1MB
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MD5
b838edd541829beb6c708fdb45ca94c6
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SHA1
e9869626fb54ad414ae7c6684c1fa905067c680c
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SHA256
73fb4f2ef418b2bdf578f09df324711cbcd4689e4f622b7944aefa0317b2c1a0
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SHA512
2be06750abc00b28b87cbe84f1e59be3325175c4cf227263960f999bbd1a7f2d18cec967c39b6d3a68f4c3709af05471e9bbc4c4d80fe5886bfafc28d602e2db
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SSDEEP
24576:8i5WyAHIlqh2hvhuQZlNVHhZ4H9w0Z2CCwaYJoRk:8i5QwuQZlNVB0w0HCwaYJom
Score
3/10
Malware Config
Signatures
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies registry class 31 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_Classes\Local Settings b838edd541829b_JC.exe Key created \REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU b838edd541829b_JC.exe Set value (data) \REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff b838edd541829b_JC.exe Set value (data) \REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff b838edd541829b_JC.exe Key created \REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 b838edd541829b_JC.exe Set value (data) \REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff b838edd541829b_JC.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DE013754-81DE-46BC-BEEB-492C810900BF}\ProgID b838edd541829b_JC.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DE013754-81DE-46BC-BEEB-492C810900BF}\ProgID\ = "ETXViewerLib.ETXViewerApp" b838edd541829b_JC.exe Set value (str) \REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\KnownFolderDerivedFolderType = "{57807898-8C4F-4462-BB63-71042380B109}" b838edd541829b_JC.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DE013754-81DE-46BC-BEEB-492C810900BF}\InprocHandler32 b838edd541829b_JC.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DE013754-81DE-46BC-BEEB-492C810900BF}\InprocHandler32\ = "ole32.dll" b838edd541829b_JC.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DE013754-81DE-46BC-BEEB-492C810900BF}\LocalServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\B838ED~1.EXE" b838edd541829b_JC.exe Key created \REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell b838edd541829b_JC.exe Set value (data) \REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02 b838edd541829b_JC.exe Set value (int) \REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\NodeSlot = "1" b838edd541829b_JC.exe Set value (str) \REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Generic" b838edd541829b_JC.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ETXViewerLib.ETXViewerApp\ = "ETXViewerLib.ETXViewerApp" b838edd541829b_JC.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DE013754-81DE-46BC-BEEB-492C810900BF}\LocalServer32 b838edd541829b_JC.exe Key created \REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags b838edd541829b_JC.exe Set value (data) \REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots b838edd541829b_JC.exe Set value (data) \REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = ffffffff b838edd541829b_JC.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ETXViewerLib.ETXViewerApp\CLSID b838edd541829b_JC.exe Key created \REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell b838edd541829b_JC.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DE013754-81DE-46BC-BEEB-492C810900BF}\ = "ETXViewerLib.ETXViewerApp" b838edd541829b_JC.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ETXViewerLib.ETXViewerApp\CLSID\ = "{DE013754-81DE-46BC-BEEB-492C810900BF}" b838edd541829b_JC.exe Set value (data) \REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f50e04fd020ea3a6910a2d808002b30309d0000 b838edd541829b_JC.exe Key created \REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 b838edd541829b_JC.exe Set value (data) \REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 19002f433a5c000000000000000000000000000000000000000000 b838edd541829b_JC.exe Key created \REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1 b838edd541829b_JC.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ETXViewerLib.ETXViewerApp b838edd541829b_JC.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{DE013754-81DE-46BC-BEEB-492C810900BF} b838edd541829b_JC.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2040 b838edd541829b_JC.exe -
Suspicious use of SetWindowsHookEx 10 IoCs
pid Process 2040 b838edd541829b_JC.exe 2040 b838edd541829b_JC.exe 2040 b838edd541829b_JC.exe 2040 b838edd541829b_JC.exe 2040 b838edd541829b_JC.exe 2040 b838edd541829b_JC.exe 2040 b838edd541829b_JC.exe 2040 b838edd541829b_JC.exe 2040 b838edd541829b_JC.exe 2040 b838edd541829b_JC.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2040 wrote to memory of 1184 2040 b838edd541829b_JC.exe 28 PID 2040 wrote to memory of 1184 2040 b838edd541829b_JC.exe 28 PID 2040 wrote to memory of 1184 2040 b838edd541829b_JC.exe 28 PID 2040 wrote to memory of 1184 2040 b838edd541829b_JC.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\b838edd541829b_JC.exe"C:\Users\Admin\AppData\Local\Temp\b838edd541829b_JC.exe"1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2040 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵PID:1184
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