Analysis
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max time kernel
149s -
max time network
31s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
05-12-2022 06:50
Behavioral task
behavioral1
Sample
b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe
Resource
win7-20221111-en
windows7-x64
12 signatures
150 seconds
Behavioral task
behavioral2
Sample
b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
11 signatures
150 seconds
General
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Target
b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe
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Size
33KB
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MD5
8dc3c09152f151d2018ca2eb2dc805a6
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SHA1
4021b68aba14f166ed8956057e9bc2e2e7b6c866
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SHA256
b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db
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SHA512
2ef5edafb53fb1309b1b80a800eb750511ad67d819bf0f5a4ad26302358a94bed79a85db2835892287614fde9919ab1c3b325c4315f0654427b2867c20164e2c
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SSDEEP
768:FyE4zNFcwp0ZgMiXzx3nVgkUplM+6ojqG:FxGLtMeQjDjqG
Score
8/10
Malware Config
Signatures
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Adds policy Run key to start application 2 TTPs 4 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\COM Service = "C:\\Windows\\msagent\\mstwcr.com" svchost.exe Key created \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run svchost.exe Set value (str) \REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\COM Service = "C:\\Windows\\msagent\\mstwcr.com" svchost.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 1216 svchost.exe -
resource yara_rule behavioral1/memory/1152-55-0x0000000000400000-0x000000000041C000-memory.dmp upx behavioral1/files/0x000a00000001331d-57.dat upx behavioral1/files/0x000a00000001331d-59.dat upx behavioral1/memory/1216-61-0x0000000000400000-0x000000000041C000-memory.dmp upx behavioral1/memory/1152-62-0x0000000000400000-0x000000000041C000-memory.dmp upx behavioral1/memory/1152-64-0x0000000000400000-0x000000000041C000-memory.dmp upx behavioral1/memory/1216-65-0x0000000000400000-0x000000000041C000-memory.dmp upx -
Deletes itself 1 IoCs
pid Process 1056 cmd.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\mslg.blf svchost.exe File opened for modification C:\Windows\SysWOW64\mslg.blf svchost.exe -
Drops file in Windows directory 8 IoCs
description ioc Process File created C:\Windows\msagent\mstwcr.com svchost.exe File opened for modification C:\Windows\svchost.exe b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe File created C:\Windows\svchost.exe b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe File opened for modification C:\Windows\msagent\mstwcr.com b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe File created C:\Windows\msagent\mstwcr.com b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe File opened for modification C:\Windows\svchost.exe svchost.exe File created C:\Windows\svchost.exe svchost.exe File opened for modification C:\Windows\msagent\mstwcr.com svchost.exe -
Checks processor information in registry 2 TTPs 4 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 svchost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString svchost.exe -
Suspicious behavior: EnumeratesProcesses 27 IoCs
pid Process 1152 b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe 1216 svchost.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1216 svchost.exe -
Suspicious use of AdjustPrivilegeToken 52 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 1152 b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe Token: SeSecurityPrivilege 1152 b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe Token: SeTakeOwnershipPrivilege 1152 b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe Token: SeLoadDriverPrivilege 1152 b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe Token: SeSystemProfilePrivilege 1152 b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe Token: SeSystemtimePrivilege 1152 b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe Token: SeProfSingleProcessPrivilege 1152 b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe Token: SeIncBasePriorityPrivilege 1152 b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe Token: SeCreatePagefilePrivilege 1152 b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe Token: SeBackupPrivilege 1152 b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe Token: SeRestorePrivilege 1152 b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe Token: SeShutdownPrivilege 1152 b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe Token: SeDebugPrivilege 1152 b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe Token: SeSystemEnvironmentPrivilege 1152 b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe Token: SeRemoteShutdownPrivilege 1152 b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe Token: SeUndockPrivilege 1152 b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe Token: SeManageVolumePrivilege 1152 b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe Token: 33 1152 b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe Token: 34 1152 b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe Token: 35 1152 b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe Token: SeIncreaseQuotaPrivilege 1216 svchost.exe Token: SeSecurityPrivilege 1216 svchost.exe Token: SeTakeOwnershipPrivilege 1216 svchost.exe Token: SeLoadDriverPrivilege 1216 svchost.exe Token: SeSystemProfilePrivilege 1216 svchost.exe Token: SeSystemtimePrivilege 1216 svchost.exe Token: SeProfSingleProcessPrivilege 1216 svchost.exe Token: SeIncBasePriorityPrivilege 1216 svchost.exe Token: SeCreatePagefilePrivilege 1216 svchost.exe Token: SeBackupPrivilege 1216 svchost.exe Token: SeRestorePrivilege 1216 svchost.exe Token: SeShutdownPrivilege 1216 svchost.exe Token: SeDebugPrivilege 1216 svchost.exe Token: SeSystemEnvironmentPrivilege 1216 svchost.exe Token: SeRemoteShutdownPrivilege 1216 svchost.exe Token: SeUndockPrivilege 1216 svchost.exe Token: SeManageVolumePrivilege 1216 svchost.exe Token: 33 1216 svchost.exe Token: 34 1216 svchost.exe Token: 35 1216 svchost.exe Token: 33 1216 svchost.exe Token: SeIncBasePriorityPrivilege 1216 svchost.exe Token: 33 1216 svchost.exe Token: SeIncBasePriorityPrivilege 1216 svchost.exe Token: 33 1216 svchost.exe Token: SeIncBasePriorityPrivilege 1216 svchost.exe Token: 33 1216 svchost.exe Token: SeIncBasePriorityPrivilege 1216 svchost.exe Token: 33 1216 svchost.exe Token: SeIncBasePriorityPrivilege 1216 svchost.exe Token: 33 1216 svchost.exe Token: SeIncBasePriorityPrivilege 1216 svchost.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1216 svchost.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1152 wrote to memory of 1216 1152 b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe 28 PID 1152 wrote to memory of 1216 1152 b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe 28 PID 1152 wrote to memory of 1216 1152 b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe 28 PID 1152 wrote to memory of 1216 1152 b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe 28 PID 1152 wrote to memory of 1056 1152 b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe 29 PID 1152 wrote to memory of 1056 1152 b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe 29 PID 1152 wrote to memory of 1056 1152 b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe 29 PID 1152 wrote to memory of 1056 1152 b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe"C:\Users\Admin\AppData\Local\Temp\b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db.exe"1⤵
- Drops file in Windows directory
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1152 -
C:\Windows\svchost.exeC:\Windows\svchost.exe2⤵
- Adds policy Run key to start application
- Executes dropped EXE
- Drops file in System32 directory
- Drops file in Windows directory
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1216
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C:\Windows\SysWOW64\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\#3#.bat2⤵
- Deletes itself
PID:1056
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
244B
MD58178264b3aec8c151eefd57f63c5e8fd
SHA161050295e1e30a45d5ae2c8af998f948a13a76fd
SHA256cb6d3dad6c58696485a5bf488c0d35e01d2d1e2367ee85a4569d55d8f5f25911
SHA512369c293844b4004e45adb14aa326baab2a5d2d38e219256f6e44145b5f6d48c80f7ffeb2265f55fb425bdf2fe5a347345c6832c444a240dc7714388000b5e3d2
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Filesize
33KB
MD58dc3c09152f151d2018ca2eb2dc805a6
SHA14021b68aba14f166ed8956057e9bc2e2e7b6c866
SHA256b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db
SHA5122ef5edafb53fb1309b1b80a800eb750511ad67d819bf0f5a4ad26302358a94bed79a85db2835892287614fde9919ab1c3b325c4315f0654427b2867c20164e2c
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Filesize
33KB
MD58dc3c09152f151d2018ca2eb2dc805a6
SHA14021b68aba14f166ed8956057e9bc2e2e7b6c866
SHA256b12e8e407b75da2d7511ff9fc8b4331491242561d6a7bb6f4279483c777918db
SHA5122ef5edafb53fb1309b1b80a800eb750511ad67d819bf0f5a4ad26302358a94bed79a85db2835892287614fde9919ab1c3b325c4315f0654427b2867c20164e2c