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
05/03/2024, 06:47
Behavioral task
behavioral1
Sample
b40dcdeb387d82b8061905dcc4d99599.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
b40dcdeb387d82b8061905dcc4d99599.exe
Resource
win10v2004-20240226-en
General
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Target
b40dcdeb387d82b8061905dcc4d99599.exe
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Size
85KB
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MD5
b40dcdeb387d82b8061905dcc4d99599
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SHA1
0c69673b4a0f9daaa8fb5741f7267609768ff464
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SHA256
e771c5bef31c1955ee0e87e9220fe5d14db5507f28c46e92f0d4272daf233884
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SHA512
0a92a63572774edadbc832ea359c1576fbcd11db793f5ea73d6af35f7e6b7e3d0a1ab48213c09144be34951153d8b07c14ed9558175d3bcceadcaa95ad97a22c
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SSDEEP
1536:SKcR4mjD9r823FBBXVl/skYzGwG0Z9OivBtLy0+E8+khn7a1C+gx0XnIVOEJ8:SKcWmjRrz3tXjUdGj0Z9OivLWocEux7s
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
pid Process 2080 64gtx8KGuxCqj8y.exe 812 CTS.exe -
Loads dropped DLL 1 IoCs
pid Process 2356 b40dcdeb387d82b8061905dcc4d99599.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/2356-0-0x0000000000D80000-0x0000000000D97000-memory.dmp upx behavioral1/memory/2356-11-0x0000000000D80000-0x0000000000D97000-memory.dmp upx behavioral1/files/0x000d0000000122fa-14.dat upx behavioral1/memory/2356-7-0x00000000000E0000-0x00000000000F7000-memory.dmp upx behavioral1/memory/812-20-0x0000000000030000-0x0000000000047000-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" b40dcdeb387d82b8061905dcc4d99599.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 b40dcdeb387d82b8061905dcc4d99599.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2644 dw20.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2356 b40dcdeb387d82b8061905dcc4d99599.exe Token: SeDebugPrivilege 812 CTS.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 2356 wrote to memory of 2080 2356 b40dcdeb387d82b8061905dcc4d99599.exe 28 PID 2356 wrote to memory of 2080 2356 b40dcdeb387d82b8061905dcc4d99599.exe 28 PID 2356 wrote to memory of 2080 2356 b40dcdeb387d82b8061905dcc4d99599.exe 28 PID 2356 wrote to memory of 2080 2356 b40dcdeb387d82b8061905dcc4d99599.exe 28 PID 2356 wrote to memory of 812 2356 b40dcdeb387d82b8061905dcc4d99599.exe 29 PID 2356 wrote to memory of 812 2356 b40dcdeb387d82b8061905dcc4d99599.exe 29 PID 2356 wrote to memory of 812 2356 b40dcdeb387d82b8061905dcc4d99599.exe 29 PID 2356 wrote to memory of 812 2356 b40dcdeb387d82b8061905dcc4d99599.exe 29 PID 2080 wrote to memory of 2644 2080 64gtx8KGuxCqj8y.exe 31 PID 2080 wrote to memory of 2644 2080 64gtx8KGuxCqj8y.exe 31 PID 2080 wrote to memory of 2644 2080 64gtx8KGuxCqj8y.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\b40dcdeb387d82b8061905dcc4d99599.exe"C:\Users\Admin\AppData\Local\Temp\b40dcdeb387d82b8061905dcc4d99599.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:2356 -
C:\Users\Admin\AppData\Local\Temp\64gtx8KGuxCqj8y.exeC:\Users\Admin\AppData\Local\Temp\64gtx8KGuxCqj8y.exe2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2080 -
C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exedw20.exe -x -s 3803⤵
- Suspicious behavior: GetForegroundWindowSpam
PID:2644
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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:812
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
29KB
MD570aa23c9229741a9b52e5ce388a883ac
SHA1b42683e21e13de3f71db26635954d992ebe7119e
SHA2569d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2
SHA512be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5
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Filesize
56KB
MD5e115521ba14b75f53dcdff087ec6898f
SHA187103a892bb514a93d485fba221bacb9da3aae25
SHA25659b284d0ad4c2634938e70fae67d9048bd98422d052fbd745a9b80b5fae7ae29
SHA512ab3d097bcf11bf7327a28124052b210f5fb13b9bfb9b7376cae1ba5c30182a330506935288a7fe06b7e3fdd82b57f5c31638f1c301738342819c772b346fa35a