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Analysis
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max time kernel
142s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
04/03/2024, 14:08
Behavioral task
behavioral1
Sample
b252f36350548b10cd4a73ed9f681ec5.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
b252f36350548b10cd4a73ed9f681ec5.exe
Resource
win10v2004-20240226-en
General
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Target
b252f36350548b10cd4a73ed9f681ec5.exe
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Size
85KB
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MD5
b252f36350548b10cd4a73ed9f681ec5
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SHA1
ef86410be6dfbc13624a9b9db188f70b15d13560
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SHA256
9099bbe761df281236d333dc2827f8101ff42236e2af32e87f60c9e1e6b8067e
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SHA512
17d00f58c8f37a5841dc7cc8cdf3c3fc8e9280583c7151e0d94bbed50ba153488f6a7a9d2969adfa3ab291169f9ed855f28523dc7e7472f09a809c45ef9974c3
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SSDEEP
1536:SKcR4mjD9r823FXk+Xb9H/mVlwbe2au5EcWve3dMIZuiGe0:SKcWmjRrz3++r9HOVl/GpWsWIZSf
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
pid Process 2708 SLlvfLdMc6FBvZA.exe 2920 CTS.exe -
Loads dropped DLL 1 IoCs
pid Process 2272 b252f36350548b10cd4a73ed9f681ec5.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/2272-0-0x0000000000D50000-0x0000000000D67000-memory.dmp upx behavioral1/memory/2272-10-0x0000000000D50000-0x0000000000D67000-memory.dmp upx behavioral1/files/0x000c000000012252-9.dat upx behavioral1/memory/2920-14-0x0000000000B50000-0x0000000000B67000-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" b252f36350548b10cd4a73ed9f681ec5.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 b252f36350548b10cd4a73ed9f681ec5.exe File created C:\Windows\CTS.exe CTS.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2540 dw20.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2272 b252f36350548b10cd4a73ed9f681ec5.exe Token: SeDebugPrivilege 2920 CTS.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 2272 wrote to memory of 2708 2272 b252f36350548b10cd4a73ed9f681ec5.exe 28 PID 2272 wrote to memory of 2708 2272 b252f36350548b10cd4a73ed9f681ec5.exe 28 PID 2272 wrote to memory of 2708 2272 b252f36350548b10cd4a73ed9f681ec5.exe 28 PID 2272 wrote to memory of 2708 2272 b252f36350548b10cd4a73ed9f681ec5.exe 28 PID 2272 wrote to memory of 2920 2272 b252f36350548b10cd4a73ed9f681ec5.exe 30 PID 2272 wrote to memory of 2920 2272 b252f36350548b10cd4a73ed9f681ec5.exe 30 PID 2272 wrote to memory of 2920 2272 b252f36350548b10cd4a73ed9f681ec5.exe 30 PID 2272 wrote to memory of 2920 2272 b252f36350548b10cd4a73ed9f681ec5.exe 30 PID 2708 wrote to memory of 2540 2708 SLlvfLdMc6FBvZA.exe 31 PID 2708 wrote to memory of 2540 2708 SLlvfLdMc6FBvZA.exe 31 PID 2708 wrote to memory of 2540 2708 SLlvfLdMc6FBvZA.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\b252f36350548b10cd4a73ed9f681ec5.exe"C:\Users\Admin\AppData\Local\Temp\b252f36350548b10cd4a73ed9f681ec5.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2272 -
C:\Users\Admin\AppData\Local\Temp\SLlvfLdMc6FBvZA.exeC:\Users\Admin\AppData\Local\Temp\SLlvfLdMc6FBvZA.exe2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2708 -
C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exedw20.exe -x -s 3803⤵
- Suspicious behavior: GetForegroundWindowSpam
PID:2540
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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:2920
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
56KB
MD5e115521ba14b75f53dcdff087ec6898f
SHA187103a892bb514a93d485fba221bacb9da3aae25
SHA25659b284d0ad4c2634938e70fae67d9048bd98422d052fbd745a9b80b5fae7ae29
SHA512ab3d097bcf11bf7327a28124052b210f5fb13b9bfb9b7376cae1ba5c30182a330506935288a7fe06b7e3fdd82b57f5c31638f1c301738342819c772b346fa35a
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Filesize
29KB
MD570aa23c9229741a9b52e5ce388a883ac
SHA1b42683e21e13de3f71db26635954d992ebe7119e
SHA2569d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2
SHA512be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5