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Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
06/04/2024, 21:37
Behavioral task
behavioral1
Sample
612f7e1323c9a979e55d581be11ea4085cf161e88af49ab52de25dc4f563b9af.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
612f7e1323c9a979e55d581be11ea4085cf161e88af49ab52de25dc4f563b9af.exe
Resource
win10v2004-20240226-en
General
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Target
612f7e1323c9a979e55d581be11ea4085cf161e88af49ab52de25dc4f563b9af.exe
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Size
29KB
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MD5
02521a1fa8333197f1cbeea9d4d25e6b
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SHA1
7932bfa4028b5d456838116ada5f50baa8bf2d0b
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SHA256
612f7e1323c9a979e55d581be11ea4085cf161e88af49ab52de25dc4f563b9af
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SHA512
80a517735e53740fb01ab422be018b4537ba89cc26a98bb3fb2ed111238cd1030f691614609a550cbd9107e04412c80e876e92ade1fcd18680be8f7edfe46ced
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SSDEEP
768:XkX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIorj0:6KcR4mjD9r82+j0
Malware Config
Signatures
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UPX dump on OEP (original entry point) 6 IoCs
resource yara_rule behavioral2/memory/3152-0-0x0000000000BB0000-0x0000000000BC7000-memory.dmp UPX behavioral2/files/0x000a000000023202-6.dat UPX behavioral2/memory/3152-7-0x0000000000BB0000-0x0000000000BC7000-memory.dmp UPX behavioral2/memory/1476-9-0x00000000008E0000-0x00000000008F7000-memory.dmp UPX behavioral2/files/0x000600000002304a-12.dat UPX behavioral2/files/0x000d000000023157-30.dat UPX -
Executes dropped EXE 1 IoCs
pid Process 1476 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/3152-0-0x0000000000BB0000-0x0000000000BC7000-memory.dmp upx behavioral2/files/0x000a000000023202-6.dat upx behavioral2/memory/3152-7-0x0000000000BB0000-0x0000000000BC7000-memory.dmp upx behavioral2/memory/1476-9-0x00000000008E0000-0x00000000008F7000-memory.dmp upx behavioral2/files/0x000600000002304a-12.dat upx behavioral2/files/0x000d000000023157-30.dat 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" 612f7e1323c9a979e55d581be11ea4085cf161e88af49ab52de25dc4f563b9af.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 612f7e1323c9a979e55d581be11ea4085cf161e88af49ab52de25dc4f563b9af.exe File created C:\Windows\CTS.exe CTS.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3152 612f7e1323c9a979e55d581be11ea4085cf161e88af49ab52de25dc4f563b9af.exe Token: SeDebugPrivilege 1476 CTS.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3152 wrote to memory of 1476 3152 612f7e1323c9a979e55d581be11ea4085cf161e88af49ab52de25dc4f563b9af.exe 86 PID 3152 wrote to memory of 1476 3152 612f7e1323c9a979e55d581be11ea4085cf161e88af49ab52de25dc4f563b9af.exe 86 PID 3152 wrote to memory of 1476 3152 612f7e1323c9a979e55d581be11ea4085cf161e88af49ab52de25dc4f563b9af.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\612f7e1323c9a979e55d581be11ea4085cf161e88af49ab52de25dc4f563b9af.exe"C:\Users\Admin\AppData\Local\Temp\612f7e1323c9a979e55d581be11ea4085cf161e88af49ab52de25dc4f563b9af.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3152 -
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:1476
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
350KB
MD5c572a772772349166a2858d4a2194453
SHA19153239b48ee4f4ac8c44578a25052c618c36465
SHA256eff13b11790a39923eb4b276f24d941a93fd4f22e15c733ea66c01016d1497c0
SHA5125a5b6be34830406705e8699dd0af66874de4a01f08a391c87aedf837cfd7d7486f6c86787a6a711238bd053de638d2fd225f58b1ca0e1d6c36060bc420f39cd6
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Filesize
29KB
MD548b95aacb6e2f03c9e5a83f13737c5a6
SHA1f817813cf16a15e32326fcde6f7d81216d8c7073
SHA25618d1bae3d4f51ed5adbd9d4a42d7cf44c3d752dc33036abc4d6b71a3bf8cd1f8
SHA51247cee005c0afd514ab6a4476ed19e3fcf353d1f8adbc83e6f196343aceb358e528998aedbf18f72b61c82dac429f7210c3db6e4b0b6eecb1d974ce917487cc14
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Filesize
26KB
MD5286211b8e0aad0533c45d8b8c351cc70
SHA1cb54a305a566c00742fb972c4ee62266e880ea78
SHA2561955407b2fd523e375303d560b987216b95105b421a8471218c0b65ceba847f3
SHA51291eddd484a40aee3a7a9254fd6843b3d9dd455e6a2c4d685d499ab1704d8644a6dc604ad14449e96b0754ae3e6c1c14c16d068605aa4e39840e0421aa7a4be35