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Analysis
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max time kernel
141s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-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 behavioral1/memory/2884-0-0x0000000000AA0000-0x0000000000AB7000-memory.dmp UPX behavioral1/files/0x000e000000014698-11.dat UPX behavioral1/memory/2052-12-0x0000000001330000-0x0000000001347000-memory.dmp UPX behavioral1/memory/2884-9-0x0000000000AA0000-0x0000000000AB7000-memory.dmp UPX behavioral1/memory/2884-5-0x00000000000E0000-0x00000000000F7000-memory.dmp UPX behavioral1/files/0x000d00000001224c-15.dat UPX -
Executes dropped EXE 1 IoCs
pid Process 2052 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 behavioral1/memory/2884-0-0x0000000000AA0000-0x0000000000AB7000-memory.dmp upx behavioral1/files/0x000e000000014698-11.dat upx behavioral1/memory/2052-12-0x0000000001330000-0x0000000001347000-memory.dmp upx behavioral1/memory/2884-9-0x0000000000AA0000-0x0000000000AB7000-memory.dmp upx behavioral1/memory/2884-5-0x00000000000E0000-0x00000000000F7000-memory.dmp upx behavioral1/files/0x000d00000001224c-15.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 2884 612f7e1323c9a979e55d581be11ea4085cf161e88af49ab52de25dc4f563b9af.exe Token: SeDebugPrivilege 2052 CTS.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2884 wrote to memory of 2052 2884 612f7e1323c9a979e55d581be11ea4085cf161e88af49ab52de25dc4f563b9af.exe 28 PID 2884 wrote to memory of 2052 2884 612f7e1323c9a979e55d581be11ea4085cf161e88af49ab52de25dc4f563b9af.exe 28 PID 2884 wrote to memory of 2052 2884 612f7e1323c9a979e55d581be11ea4085cf161e88af49ab52de25dc4f563b9af.exe 28 PID 2884 wrote to memory of 2052 2884 612f7e1323c9a979e55d581be11ea4085cf161e88af49ab52de25dc4f563b9af.exe 28
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:2884 -
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:2052
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
29KB
MD559cd8bcbca0e3f6f8a6c17afbd7c67a9
SHA1728d78ca074967f1d2f3a1cb6d91856bf14435eb
SHA256a39cd8ab14102bbdaa4fece0cfd69b1b6d0f6917531fbd40fe7f878c1c184b17
SHA512cdd0aee1a9db5d1e0bae9c4986c2312cdc737ac247df2acd33061937e7dc3eeab341d8db09654f94d766220b5e53ec477fa31913c717d9e61b803943c9eb6fbf
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Filesize
26KB
MD5286211b8e0aad0533c45d8b8c351cc70
SHA1cb54a305a566c00742fb972c4ee62266e880ea78
SHA2561955407b2fd523e375303d560b987216b95105b421a8471218c0b65ceba847f3
SHA51291eddd484a40aee3a7a9254fd6843b3d9dd455e6a2c4d685d499ab1704d8644a6dc604ad14449e96b0754ae3e6c1c14c16d068605aa4e39840e0421aa7a4be35