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Analysis
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max time kernel
149s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
28/05/2024, 22:48
Behavioral task
behavioral1
Sample
751003cbbfbae322a2d3d60ac00ddd89cb4ba3bb5ef1a60048d585125a55476d.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
751003cbbfbae322a2d3d60ac00ddd89cb4ba3bb5ef1a60048d585125a55476d.exe
Resource
win10v2004-20240426-en
General
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Target
751003cbbfbae322a2d3d60ac00ddd89cb4ba3bb5ef1a60048d585125a55476d.exe
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Size
27KB
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MD5
997cfd640be6243a2add974d9bf9e105
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SHA1
471275f0c3420076a77be13f17fb408f75409ce2
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SHA256
751003cbbfbae322a2d3d60ac00ddd89cb4ba3bb5ef1a60048d585125a55476d
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SHA512
67099eebd89075b80cd3482c7a29d9b1726a90816da1bfea1ecd1c08915a2f3e9d8ddd142aac1bff73f9aed2a59a59c0bb0968f773578138bf7bafc561fe51d6
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SSDEEP
768:X9J/3FzjgfanEGx8V36unjv88tznuRU65Y4gpph1ePVCML:N5VzcfA/6LrVpL74gfh16nL
Malware Config
Signatures
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UPX dump on OEP (original entry point) 7 IoCs
resource yara_rule behavioral2/memory/3516-0-0x0000000000700000-0x0000000000718000-memory.dmp UPX behavioral2/memory/3516-6-0x0000000000700000-0x0000000000718000-memory.dmp UPX behavioral2/files/0x000700000002346e-7.dat UPX behavioral2/memory/4296-8-0x0000000000550000-0x0000000000568000-memory.dmp UPX behavioral2/files/0x00030000000229d7-12.dat UPX behavioral2/files/0x000800000002346a-29.dat UPX behavioral2/memory/4296-31-0x0000000000550000-0x0000000000568000-memory.dmp UPX -
Executes dropped EXE 1 IoCs
pid Process 4296 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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resource yara_rule behavioral2/memory/3516-0-0x0000000000700000-0x0000000000718000-memory.dmp upx behavioral2/memory/3516-6-0x0000000000700000-0x0000000000718000-memory.dmp upx behavioral2/files/0x000700000002346e-7.dat upx behavioral2/memory/4296-8-0x0000000000550000-0x0000000000568000-memory.dmp upx behavioral2/files/0x00030000000229d7-12.dat upx behavioral2/files/0x000800000002346a-29.dat upx behavioral2/memory/4296-31-0x0000000000550000-0x0000000000568000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe" 751003cbbfbae322a2d3d60ac00ddd89cb4ba3bb5ef1a60048d585125a55476d.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
description ioc Process File created C:\Windows\CTS.exe CTS.exe File created C:\Windows\CTS.exe 751003cbbfbae322a2d3d60ac00ddd89cb4ba3bb5ef1a60048d585125a55476d.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3516 751003cbbfbae322a2d3d60ac00ddd89cb4ba3bb5ef1a60048d585125a55476d.exe Token: SeDebugPrivilege 4296 CTS.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3516 wrote to memory of 4296 3516 751003cbbfbae322a2d3d60ac00ddd89cb4ba3bb5ef1a60048d585125a55476d.exe 82 PID 3516 wrote to memory of 4296 3516 751003cbbfbae322a2d3d60ac00ddd89cb4ba3bb5ef1a60048d585125a55476d.exe 82 PID 3516 wrote to memory of 4296 3516 751003cbbfbae322a2d3d60ac00ddd89cb4ba3bb5ef1a60048d585125a55476d.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\751003cbbfbae322a2d3d60ac00ddd89cb4ba3bb5ef1a60048d585125a55476d.exe"C:\Users\Admin\AppData\Local\Temp\751003cbbfbae322a2d3d60ac00ddd89cb4ba3bb5ef1a60048d585125a55476d.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3516 -
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:4296
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
348KB
MD55241fbb9220de2bcf42685588d354f26
SHA1dc4740a48574145c36d5991e921acb9b2e0a2637
SHA256ad34fde584648ac3aa0dc8eed04f411a32d84259f18c0b9aee674e357b5c5ff6
SHA51273afbeef5ff808e785f86638a8a86317c78ee5dcd468bb58a114994ed33f50d8dd157b101c981ee5dae34af484c5b19798ee56c525d622dd81f4bc2adc4508f5
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Filesize
27KB
MD5ecebeb70429934f2590075be53ba3f85
SHA1b16c2314356fb0ea99746fb107daa47d7722326b
SHA25644ac090115cc5204d2a90aa00e8f9fd28498028bd068c18084433c8e765a9b0e
SHA51287b659b00edc681e3480c51a609bc15ba6a97f1e407c637b291034eec0bb4328dcac2eb317791aaee3a1aa6c4a443fb5a7fc6bc3259649599838683b2cbb413a
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Filesize
27KB
MD5a6749b968461644db5cc0ecceffb224a
SHA12795aa37b8586986a34437081351cdd791749a90
SHA256720023737d7ff700818f55612ba069a609a5ddea646bb3509b615ee3523a4ca2
SHA5122a276816290746ed914af9cf6427aef31ce9395b8e9937090e329a8f74fb84c62d15b196e13346caa086842b3f5f549b9eb20cbf422d18c9c1b63e6342ea90b4