Analysis
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max time kernel
149s -
max time network
143s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
14/03/2024, 07:30
Static task
static1
Behavioral task
behavioral1
Sample
c80d747d792f6a52d3fac3b6f9c829ef.exe
Resource
win7-20240221-en
General
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Target
c80d747d792f6a52d3fac3b6f9c829ef.exe
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Size
98KB
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MD5
c80d747d792f6a52d3fac3b6f9c829ef
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SHA1
ef4dd0b539b704ed7a3d43eb5fd58b8ac25646ba
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SHA256
243fa45cc6d163d24e52c777921b923bc9a5f0a732fb159896418e46c381ab19
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SHA512
7706f1ea8a05813be3faf343a8435d3d1521fb9a47d025533e0973addb807547b6bccb4cbeebf6c9c9d1082bd62757f41e46d721a302df66008240ffa228b365
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SSDEEP
3072:bFlBBhhbIXzakFDhbZ2Gkk8jwaaHw7Koj4rDc/9uK:fhhbwvDjlMM
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exe,C:\\Users\\Admin\\AppData\\Local\\lajxkfeq\\tgwyshhu.exe" svchost.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" svchost.exe -
Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion svchost.exe -
Drops startup file 2 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\tgwyshhu.exe svchost.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\tgwyshhu.exe svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 2428 llvfwkpnioemxhan.exe -
Loads dropped DLL 5 IoCs
pid Process 2952 c80d747d792f6a52d3fac3b6f9c829ef.exe 2952 c80d747d792f6a52d3fac3b6f9c829ef.exe 2952 c80d747d792f6a52d3fac3b6f9c829ef.exe 2952 c80d747d792f6a52d3fac3b6f9c829ef.exe 2952 c80d747d792f6a52d3fac3b6f9c829ef.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\TgwYshhu = "C:\\Users\\Admin\\AppData\\Local\\lajxkfeq\\tgwyshhu.exe" svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe 2644 svchost.exe -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 480 Process not Found -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeSecurityPrivilege 2952 c80d747d792f6a52d3fac3b6f9c829ef.exe Token: SeDebugPrivilege 2952 c80d747d792f6a52d3fac3b6f9c829ef.exe Token: SeSecurityPrivilege 1684 svchost.exe Token: SeSecurityPrivilege 2644 svchost.exe Token: SeDebugPrivilege 2644 svchost.exe Token: SeRestorePrivilege 2644 svchost.exe Token: SeBackupPrivilege 2644 svchost.exe Token: SeRestorePrivilege 2644 svchost.exe Token: SeBackupPrivilege 2644 svchost.exe Token: SeRestorePrivilege 2644 svchost.exe Token: SeBackupPrivilege 2644 svchost.exe Token: SeRestorePrivilege 2644 svchost.exe Token: SeBackupPrivilege 2644 svchost.exe Token: SeRestorePrivilege 2644 svchost.exe Token: SeBackupPrivilege 2644 svchost.exe Token: SeRestorePrivilege 2644 svchost.exe Token: SeBackupPrivilege 2644 svchost.exe Token: SeSecurityPrivilege 2428 llvfwkpnioemxhan.exe Token: SeLoadDriverPrivilege 2428 llvfwkpnioemxhan.exe Token: SeRestorePrivilege 2644 svchost.exe Token: SeBackupPrivilege 2644 svchost.exe Token: SeRestorePrivilege 2644 svchost.exe Token: SeBackupPrivilege 2644 svchost.exe Token: SeRestorePrivilege 2644 svchost.exe Token: SeBackupPrivilege 2644 svchost.exe Token: SeRestorePrivilege 2644 svchost.exe Token: SeBackupPrivilege 2644 svchost.exe Token: SeRestorePrivilege 2644 svchost.exe Token: SeBackupPrivilege 2644 svchost.exe Token: SeRestorePrivilege 2644 svchost.exe Token: SeBackupPrivilege 2644 svchost.exe Token: SeRestorePrivilege 2644 svchost.exe Token: SeBackupPrivilege 2644 svchost.exe Token: SeRestorePrivilege 2644 svchost.exe Token: SeBackupPrivilege 2644 svchost.exe Token: SeRestorePrivilege 2644 svchost.exe Token: SeBackupPrivilege 2644 svchost.exe Token: SeRestorePrivilege 2644 svchost.exe Token: SeBackupPrivilege 2644 svchost.exe Token: SeRestorePrivilege 2644 svchost.exe Token: SeBackupPrivilege 2644 svchost.exe Token: SeRestorePrivilege 2644 svchost.exe Token: SeBackupPrivilege 2644 svchost.exe Token: SeRestorePrivilege 2644 svchost.exe Token: SeBackupPrivilege 2644 svchost.exe Token: SeRestorePrivilege 2644 svchost.exe Token: SeBackupPrivilege 2644 svchost.exe Token: SeRestorePrivilege 2644 svchost.exe Token: SeBackupPrivilege 2644 svchost.exe Token: SeRestorePrivilege 2644 svchost.exe Token: SeBackupPrivilege 2644 svchost.exe Token: SeRestorePrivilege 2644 svchost.exe Token: SeBackupPrivilege 2644 svchost.exe Token: SeRestorePrivilege 2644 svchost.exe Token: SeBackupPrivilege 2644 svchost.exe Token: SeRestorePrivilege 2644 svchost.exe Token: SeBackupPrivilege 2644 svchost.exe Token: SeRestorePrivilege 2644 svchost.exe Token: SeBackupPrivilege 2644 svchost.exe Token: SeRestorePrivilege 2644 svchost.exe Token: SeBackupPrivilege 2644 svchost.exe Token: SeRestorePrivilege 2644 svchost.exe Token: SeBackupPrivilege 2644 svchost.exe Token: SeRestorePrivilege 2644 svchost.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 2952 wrote to memory of 1684 2952 c80d747d792f6a52d3fac3b6f9c829ef.exe 28 PID 2952 wrote to memory of 1684 2952 c80d747d792f6a52d3fac3b6f9c829ef.exe 28 PID 2952 wrote to memory of 1684 2952 c80d747d792f6a52d3fac3b6f9c829ef.exe 28 PID 2952 wrote to memory of 1684 2952 c80d747d792f6a52d3fac3b6f9c829ef.exe 28 PID 2952 wrote to memory of 1684 2952 c80d747d792f6a52d3fac3b6f9c829ef.exe 28 PID 2952 wrote to memory of 1684 2952 c80d747d792f6a52d3fac3b6f9c829ef.exe 28 PID 2952 wrote to memory of 1684 2952 c80d747d792f6a52d3fac3b6f9c829ef.exe 28 PID 2952 wrote to memory of 1684 2952 c80d747d792f6a52d3fac3b6f9c829ef.exe 28 PID 2952 wrote to memory of 1684 2952 c80d747d792f6a52d3fac3b6f9c829ef.exe 28 PID 2952 wrote to memory of 1684 2952 c80d747d792f6a52d3fac3b6f9c829ef.exe 28 PID 2952 wrote to memory of 2644 2952 c80d747d792f6a52d3fac3b6f9c829ef.exe 29 PID 2952 wrote to memory of 2644 2952 c80d747d792f6a52d3fac3b6f9c829ef.exe 29 PID 2952 wrote to memory of 2644 2952 c80d747d792f6a52d3fac3b6f9c829ef.exe 29 PID 2952 wrote to memory of 2644 2952 c80d747d792f6a52d3fac3b6f9c829ef.exe 29 PID 2952 wrote to memory of 2644 2952 c80d747d792f6a52d3fac3b6f9c829ef.exe 29 PID 2952 wrote to memory of 2644 2952 c80d747d792f6a52d3fac3b6f9c829ef.exe 29 PID 2952 wrote to memory of 2644 2952 c80d747d792f6a52d3fac3b6f9c829ef.exe 29 PID 2952 wrote to memory of 2644 2952 c80d747d792f6a52d3fac3b6f9c829ef.exe 29 PID 2952 wrote to memory of 2644 2952 c80d747d792f6a52d3fac3b6f9c829ef.exe 29 PID 2952 wrote to memory of 2644 2952 c80d747d792f6a52d3fac3b6f9c829ef.exe 29 PID 2952 wrote to memory of 2428 2952 c80d747d792f6a52d3fac3b6f9c829ef.exe 30 PID 2952 wrote to memory of 2428 2952 c80d747d792f6a52d3fac3b6f9c829ef.exe 30 PID 2952 wrote to memory of 2428 2952 c80d747d792f6a52d3fac3b6f9c829ef.exe 30 PID 2952 wrote to memory of 2428 2952 c80d747d792f6a52d3fac3b6f9c829ef.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\c80d747d792f6a52d3fac3b6f9c829ef.exe"C:\Users\Admin\AppData\Local\Temp\c80d747d792f6a52d3fac3b6f9c829ef.exe"1⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2952 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1684
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C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe2⤵
- Modifies WinLogon for persistence
- UAC bypass
- Checks BIOS information in registry
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2644
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C:\Users\Admin\AppData\Local\Temp\llvfwkpnioemxhan.exe"C:\Users\Admin\AppData\Local\Temp\llvfwkpnioemxhan.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2428
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Replay Monitor
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Downloads
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Filesize
98KB
MD5c80d747d792f6a52d3fac3b6f9c829ef
SHA1ef4dd0b539b704ed7a3d43eb5fd58b8ac25646ba
SHA256243fa45cc6d163d24e52c777921b923bc9a5f0a732fb159896418e46c381ab19
SHA5127706f1ea8a05813be3faf343a8435d3d1521fb9a47d025533e0973addb807547b6bccb4cbeebf6c9c9d1082bd62757f41e46d721a302df66008240ffa228b365