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Analysis
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max time kernel
150s -
max time network
145s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
07/03/2024, 20:03
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
b9884f6268744008969c80e4fb0f02a6.exe
Resource
win7-20240221-en
windows7-x64
13 signatures
150 seconds
General
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Target
b9884f6268744008969c80e4fb0f02a6.exe
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Size
98KB
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MD5
b9884f6268744008969c80e4fb0f02a6
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SHA1
8a02b168d3c8d9e1185a4fe73bde17df080b3c83
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SHA256
c67ebc49712b01dec338430393dedb7e86edf432caa7e6ac592e27e8cbba3607
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SHA512
4fc17c63c1922e0765ff08dbb67ede69d2f231f8b5a715361372ee7168e28ac9722b82eec500af602a2e28473ebe88ec60aaeb8c49b8a6189ec92aa403af6e38
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SSDEEP
3072:+fsWsyb6/32LMzo8k0w9ZhtOGik8jwaaHw7Koj4rD8rmavLN:msWsyOlhkZhtbkVvL
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\\kjqgekoc\\spisrnxs.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\spisrnxs.exe svchost.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\spisrnxs.exe svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 2432 kugqtpayhracdglk.exe -
Loads dropped DLL 5 IoCs
pid Process 2856 b9884f6268744008969c80e4fb0f02a6.exe 2856 b9884f6268744008969c80e4fb0f02a6.exe 2856 b9884f6268744008969c80e4fb0f02a6.exe 2856 b9884f6268744008969c80e4fb0f02a6.exe 2856 b9884f6268744008969c80e4fb0f02a6.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\SpiSrnxs = "C:\\Users\\Admin\\AppData\\Local\\kjqgekoc\\spisrnxs.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 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe 2748 svchost.exe -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 480 Process not Found -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeSecurityPrivilege 2856 b9884f6268744008969c80e4fb0f02a6.exe Token: SeDebugPrivilege 2856 b9884f6268744008969c80e4fb0f02a6.exe Token: SeSecurityPrivilege 1984 svchost.exe Token: SeSecurityPrivilege 2748 svchost.exe Token: SeDebugPrivilege 2748 svchost.exe Token: SeRestorePrivilege 2748 svchost.exe Token: SeBackupPrivilege 2748 svchost.exe Token: SeRestorePrivilege 2748 svchost.exe Token: SeBackupPrivilege 2748 svchost.exe Token: SeRestorePrivilege 2748 svchost.exe Token: SeBackupPrivilege 2748 svchost.exe Token: SeRestorePrivilege 2748 svchost.exe Token: SeBackupPrivilege 2748 svchost.exe Token: SeRestorePrivilege 2748 svchost.exe Token: SeBackupPrivilege 2748 svchost.exe Token: SeRestorePrivilege 2748 svchost.exe Token: SeBackupPrivilege 2748 svchost.exe Token: SeSecurityPrivilege 2432 kugqtpayhracdglk.exe Token: SeLoadDriverPrivilege 2432 kugqtpayhracdglk.exe Token: SeRestorePrivilege 2748 svchost.exe Token: SeBackupPrivilege 2748 svchost.exe Token: SeRestorePrivilege 2748 svchost.exe Token: SeBackupPrivilege 2748 svchost.exe Token: SeRestorePrivilege 2748 svchost.exe Token: SeBackupPrivilege 2748 svchost.exe Token: SeRestorePrivilege 2748 svchost.exe Token: SeBackupPrivilege 2748 svchost.exe Token: SeRestorePrivilege 2748 svchost.exe Token: SeBackupPrivilege 2748 svchost.exe Token: SeRestorePrivilege 2748 svchost.exe Token: SeBackupPrivilege 2748 svchost.exe Token: SeRestorePrivilege 2748 svchost.exe Token: SeBackupPrivilege 2748 svchost.exe Token: SeRestorePrivilege 2748 svchost.exe Token: SeBackupPrivilege 2748 svchost.exe Token: SeRestorePrivilege 2748 svchost.exe Token: SeBackupPrivilege 2748 svchost.exe Token: SeRestorePrivilege 2748 svchost.exe Token: SeBackupPrivilege 2748 svchost.exe Token: SeRestorePrivilege 2748 svchost.exe Token: SeBackupPrivilege 2748 svchost.exe Token: SeRestorePrivilege 2748 svchost.exe Token: SeBackupPrivilege 2748 svchost.exe Token: SeRestorePrivilege 2748 svchost.exe Token: SeBackupPrivilege 2748 svchost.exe Token: SeRestorePrivilege 2748 svchost.exe Token: SeBackupPrivilege 2748 svchost.exe Token: SeRestorePrivilege 2748 svchost.exe Token: SeBackupPrivilege 2748 svchost.exe Token: SeRestorePrivilege 2748 svchost.exe Token: SeBackupPrivilege 2748 svchost.exe Token: SeRestorePrivilege 2748 svchost.exe Token: SeBackupPrivilege 2748 svchost.exe Token: SeRestorePrivilege 2748 svchost.exe Token: SeBackupPrivilege 2748 svchost.exe Token: SeRestorePrivilege 2748 svchost.exe Token: SeBackupPrivilege 2748 svchost.exe Token: SeRestorePrivilege 2748 svchost.exe Token: SeBackupPrivilege 2748 svchost.exe Token: SeRestorePrivilege 2748 svchost.exe Token: SeBackupPrivilege 2748 svchost.exe Token: SeRestorePrivilege 2748 svchost.exe Token: SeBackupPrivilege 2748 svchost.exe Token: SeRestorePrivilege 2748 svchost.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 2856 wrote to memory of 1984 2856 b9884f6268744008969c80e4fb0f02a6.exe 28 PID 2856 wrote to memory of 1984 2856 b9884f6268744008969c80e4fb0f02a6.exe 28 PID 2856 wrote to memory of 1984 2856 b9884f6268744008969c80e4fb0f02a6.exe 28 PID 2856 wrote to memory of 1984 2856 b9884f6268744008969c80e4fb0f02a6.exe 28 PID 2856 wrote to memory of 1984 2856 b9884f6268744008969c80e4fb0f02a6.exe 28 PID 2856 wrote to memory of 1984 2856 b9884f6268744008969c80e4fb0f02a6.exe 28 PID 2856 wrote to memory of 1984 2856 b9884f6268744008969c80e4fb0f02a6.exe 28 PID 2856 wrote to memory of 1984 2856 b9884f6268744008969c80e4fb0f02a6.exe 28 PID 2856 wrote to memory of 1984 2856 b9884f6268744008969c80e4fb0f02a6.exe 28 PID 2856 wrote to memory of 1984 2856 b9884f6268744008969c80e4fb0f02a6.exe 28 PID 2856 wrote to memory of 2748 2856 b9884f6268744008969c80e4fb0f02a6.exe 29 PID 2856 wrote to memory of 2748 2856 b9884f6268744008969c80e4fb0f02a6.exe 29 PID 2856 wrote to memory of 2748 2856 b9884f6268744008969c80e4fb0f02a6.exe 29 PID 2856 wrote to memory of 2748 2856 b9884f6268744008969c80e4fb0f02a6.exe 29 PID 2856 wrote to memory of 2748 2856 b9884f6268744008969c80e4fb0f02a6.exe 29 PID 2856 wrote to memory of 2748 2856 b9884f6268744008969c80e4fb0f02a6.exe 29 PID 2856 wrote to memory of 2748 2856 b9884f6268744008969c80e4fb0f02a6.exe 29 PID 2856 wrote to memory of 2748 2856 b9884f6268744008969c80e4fb0f02a6.exe 29 PID 2856 wrote to memory of 2748 2856 b9884f6268744008969c80e4fb0f02a6.exe 29 PID 2856 wrote to memory of 2748 2856 b9884f6268744008969c80e4fb0f02a6.exe 29 PID 2856 wrote to memory of 2432 2856 b9884f6268744008969c80e4fb0f02a6.exe 30 PID 2856 wrote to memory of 2432 2856 b9884f6268744008969c80e4fb0f02a6.exe 30 PID 2856 wrote to memory of 2432 2856 b9884f6268744008969c80e4fb0f02a6.exe 30 PID 2856 wrote to memory of 2432 2856 b9884f6268744008969c80e4fb0f02a6.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\b9884f6268744008969c80e4fb0f02a6.exe"C:\Users\Admin\AppData\Local\Temp\b9884f6268744008969c80e4fb0f02a6.exe"1⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2856 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1984
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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:2748
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C:\Users\Admin\AppData\Local\Temp\kugqtpayhracdglk.exe"C:\Users\Admin\AppData\Local\Temp\kugqtpayhracdglk.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2432
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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
MD5b9884f6268744008969c80e4fb0f02a6
SHA18a02b168d3c8d9e1185a4fe73bde17df080b3c83
SHA256c67ebc49712b01dec338430393dedb7e86edf432caa7e6ac592e27e8cbba3607
SHA5124fc17c63c1922e0765ff08dbb67ede69d2f231f8b5a715361372ee7168e28ac9722b82eec500af602a2e28473ebe88ec60aaeb8c49b8a6189ec92aa403af6e38