Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
23-05-2024 00:27
Behavioral task
behavioral1
Sample
620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e.exe
Resource
win10v2004-20240426-en
General
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Target
620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e.exe
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Size
32KB
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MD5
2118a903842d656c15a699668bfb65d0
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SHA1
27a02894dbd1cdf63293c32644ef524d9ca90d76
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SHA256
620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e
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SHA512
825f019993c7d9ae0cd098183164bd0f77ec54fb0ec1dac973f846b42bfe4b515c7f430c997aca344558b5df0ae155f3edf320929fba0cb417bca4d24c9750a2
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SSDEEP
768:X9J/3FzjgfanEGx8V36unjv88tznuRU65Y4gpph1ePVCM/sBndzqL:N5VzcfA/6LrVpL74gfh16nG5s
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
CTS.exepid process 2388 CTS.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Processes:
resource yara_rule behavioral2/memory/4384-1-0x0000000000A70000-0x0000000000A88000-memory.dmp upx behavioral2/memory/4384-8-0x0000000000A70000-0x0000000000A88000-memory.dmp upx C:\Windows\CTS.exe upx behavioral2/memory/2388-9-0x0000000000490000-0x00000000004A8000-memory.dmp upx C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml upx C:\Users\Admin\AppData\Local\Temp\a3VADtfutAwHbN9.exe upx behavioral2/memory/2388-33-0x0000000000490000-0x00000000004A8000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e.exeCTS.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe" 620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe" CTS.exe -
Drops file in Windows directory 2 IoCs
Processes:
620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e.exeCTS.exedescription ioc process File created C:\Windows\CTS.exe 620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e.exe File created C:\Windows\CTS.exe CTS.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e.exeCTS.exedescription pid process Token: SeDebugPrivilege 4384 620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e.exe Token: SeDebugPrivilege 2388 CTS.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e.exedescription pid process target process PID 4384 wrote to memory of 2388 4384 620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e.exe CTS.exe PID 4384 wrote to memory of 2388 4384 620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e.exe CTS.exe PID 4384 wrote to memory of 2388 4384 620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e.exe CTS.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e.exe"C:\Users\Admin\AppData\Local\Temp\620f54471509d66617de2dbdcce91a9f0b06f7d67e5a8d0a1d0a6ab62043c86e.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4384 -
C:\Windows\CTS.exe"C:\Windows\CTS.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:2388
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
348KB
MD54832685363dec115d72ae04eed20e08a
SHA13cdc7d28d80e82f0272de123378f4e5061e8526c
SHA256c7f1f1b6cf47748676ee1361321ac120f09b77e415cb1a1bf10f972c2512d3d1
SHA5128b16220c7dcf83ac39e5a8c4351cadb70c524337d186bf04aa672af50aa1f10bcde2d99245cdaf064430a60e031bfbeb24b0fe79425002712a4700eb7c8e302a
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Filesize
32KB
MD5d5ca06945d530a759fa2ef5c752d3010
SHA133ceddd4c9b31d1ad49fb3982eaeb46db3b796ba
SHA2562b5cef6f927967be6707c539761179d580e9a47c83fea29a8e4d56af782e5253
SHA512b36018a04a421883a561e8b004a8e898492feed7a0299cbf2b276e6c68bcf97af0bde082d9c8ce165edeca6684e0356e8786ec606bfe2e50f489f9ee66334d16
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Filesize
27KB
MD5a6749b968461644db5cc0ecceffb224a
SHA12795aa37b8586986a34437081351cdd791749a90
SHA256720023737d7ff700818f55612ba069a609a5ddea646bb3509b615ee3523a4ca2
SHA5122a276816290746ed914af9cf6427aef31ce9395b8e9937090e329a8f74fb84c62d15b196e13346caa086842b3f5f549b9eb20cbf422d18c9c1b63e6342ea90b4