Analysis
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max time kernel
150s -
max time network
153s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
14/03/2024, 06:09
Static task
static1
Behavioral task
behavioral1
Sample
c7e1293ced0f737be3a9b57532fb1ce4.exe
Resource
win7-20240221-en
General
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Target
c7e1293ced0f737be3a9b57532fb1ce4.exe
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Size
101KB
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MD5
c7e1293ced0f737be3a9b57532fb1ce4
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SHA1
680885f3826c7775c112c734cdc97a1cda17d0be
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SHA256
7e4ad8b40121445fd07609684f39a629054c5b6b0924d446c5a1dea80bf0452c
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SHA512
38bf57af0cca69f8f8cd6ed0184cd462c905f3466a260d6b1dd627caea31272804f72b1e4a7e41666dcaa50decbe1249124d42a7d8b1217c307e719e1bfa61ba
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SSDEEP
3072:9gIpT1t2YXm8XdstQculie6qbcU5jwaaHw7Koj4r:aIx1dX3XCt2bB
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\\bkkgwtwe\\jqcshtgu.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\jqcshtgu.exe svchost.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jqcshtgu.exe svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 692 bvanjvfbrdtciwoi.exe -
Loads dropped DLL 4 IoCs
pid Process 2536 c7e1293ced0f737be3a9b57532fb1ce4.exe 2536 c7e1293ced0f737be3a9b57532fb1ce4.exe 2536 c7e1293ced0f737be3a9b57532fb1ce4.exe 2536 c7e1293ced0f737be3a9b57532fb1ce4.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1650401615-1019878084-3673944445-1000\Software\Microsoft\Windows\CurrentVersion\Run\JqcShtgu = "C:\\Users\\Admin\\AppData\\Local\\bkkgwtwe\\jqcshtgu.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 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe 2584 svchost.exe -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 468 Process not Found -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeSecurityPrivilege 2536 c7e1293ced0f737be3a9b57532fb1ce4.exe Token: SeDebugPrivilege 2536 c7e1293ced0f737be3a9b57532fb1ce4.exe Token: SeSecurityPrivilege 2932 svchost.exe Token: SeSecurityPrivilege 2584 svchost.exe Token: SeDebugPrivilege 2584 svchost.exe Token: SeRestorePrivilege 2584 svchost.exe Token: SeBackupPrivilege 2584 svchost.exe Token: SeRestorePrivilege 2584 svchost.exe Token: SeBackupPrivilege 2584 svchost.exe Token: SeRestorePrivilege 2584 svchost.exe Token: SeBackupPrivilege 2584 svchost.exe Token: SeRestorePrivilege 2584 svchost.exe Token: SeBackupPrivilege 2584 svchost.exe Token: SeRestorePrivilege 2584 svchost.exe Token: SeBackupPrivilege 2584 svchost.exe Token: SeRestorePrivilege 2584 svchost.exe Token: SeBackupPrivilege 2584 svchost.exe Token: SeSecurityPrivilege 692 bvanjvfbrdtciwoi.exe Token: SeLoadDriverPrivilege 692 bvanjvfbrdtciwoi.exe Token: SeRestorePrivilege 2584 svchost.exe Token: SeBackupPrivilege 2584 svchost.exe Token: SeRestorePrivilege 2584 svchost.exe Token: SeBackupPrivilege 2584 svchost.exe Token: SeRestorePrivilege 2584 svchost.exe Token: SeBackupPrivilege 2584 svchost.exe Token: SeRestorePrivilege 2584 svchost.exe Token: SeBackupPrivilege 2584 svchost.exe Token: SeRestorePrivilege 2584 svchost.exe Token: SeBackupPrivilege 2584 svchost.exe Token: SeRestorePrivilege 2584 svchost.exe Token: SeBackupPrivilege 2584 svchost.exe Token: SeRestorePrivilege 2584 svchost.exe Token: SeBackupPrivilege 2584 svchost.exe Token: SeRestorePrivilege 2584 svchost.exe Token: SeBackupPrivilege 2584 svchost.exe Token: SeRestorePrivilege 2584 svchost.exe Token: SeBackupPrivilege 2584 svchost.exe Token: SeRestorePrivilege 2584 svchost.exe Token: SeBackupPrivilege 2584 svchost.exe Token: SeRestorePrivilege 2584 svchost.exe Token: SeBackupPrivilege 2584 svchost.exe Token: SeRestorePrivilege 2584 svchost.exe Token: SeBackupPrivilege 2584 svchost.exe Token: SeRestorePrivilege 2584 svchost.exe Token: SeBackupPrivilege 2584 svchost.exe Token: SeRestorePrivilege 2584 svchost.exe Token: SeBackupPrivilege 2584 svchost.exe Token: SeRestorePrivilege 2584 svchost.exe Token: SeBackupPrivilege 2584 svchost.exe Token: SeRestorePrivilege 2584 svchost.exe Token: SeBackupPrivilege 2584 svchost.exe Token: SeRestorePrivilege 2584 svchost.exe Token: SeBackupPrivilege 2584 svchost.exe Token: SeRestorePrivilege 2584 svchost.exe Token: SeBackupPrivilege 2584 svchost.exe Token: SeRestorePrivilege 2584 svchost.exe Token: SeBackupPrivilege 2584 svchost.exe Token: SeRestorePrivilege 2584 svchost.exe Token: SeBackupPrivilege 2584 svchost.exe Token: SeRestorePrivilege 2584 svchost.exe Token: SeBackupPrivilege 2584 svchost.exe Token: SeRestorePrivilege 2584 svchost.exe Token: SeBackupPrivilege 2584 svchost.exe Token: SeRestorePrivilege 2584 svchost.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 2536 wrote to memory of 2932 2536 c7e1293ced0f737be3a9b57532fb1ce4.exe 28 PID 2536 wrote to memory of 2932 2536 c7e1293ced0f737be3a9b57532fb1ce4.exe 28 PID 2536 wrote to memory of 2932 2536 c7e1293ced0f737be3a9b57532fb1ce4.exe 28 PID 2536 wrote to memory of 2932 2536 c7e1293ced0f737be3a9b57532fb1ce4.exe 28 PID 2536 wrote to memory of 2932 2536 c7e1293ced0f737be3a9b57532fb1ce4.exe 28 PID 2536 wrote to memory of 2932 2536 c7e1293ced0f737be3a9b57532fb1ce4.exe 28 PID 2536 wrote to memory of 2932 2536 c7e1293ced0f737be3a9b57532fb1ce4.exe 28 PID 2536 wrote to memory of 2932 2536 c7e1293ced0f737be3a9b57532fb1ce4.exe 28 PID 2536 wrote to memory of 2932 2536 c7e1293ced0f737be3a9b57532fb1ce4.exe 28 PID 2536 wrote to memory of 2932 2536 c7e1293ced0f737be3a9b57532fb1ce4.exe 28 PID 2536 wrote to memory of 2584 2536 c7e1293ced0f737be3a9b57532fb1ce4.exe 29 PID 2536 wrote to memory of 2584 2536 c7e1293ced0f737be3a9b57532fb1ce4.exe 29 PID 2536 wrote to memory of 2584 2536 c7e1293ced0f737be3a9b57532fb1ce4.exe 29 PID 2536 wrote to memory of 2584 2536 c7e1293ced0f737be3a9b57532fb1ce4.exe 29 PID 2536 wrote to memory of 2584 2536 c7e1293ced0f737be3a9b57532fb1ce4.exe 29 PID 2536 wrote to memory of 2584 2536 c7e1293ced0f737be3a9b57532fb1ce4.exe 29 PID 2536 wrote to memory of 2584 2536 c7e1293ced0f737be3a9b57532fb1ce4.exe 29 PID 2536 wrote to memory of 2584 2536 c7e1293ced0f737be3a9b57532fb1ce4.exe 29 PID 2536 wrote to memory of 2584 2536 c7e1293ced0f737be3a9b57532fb1ce4.exe 29 PID 2536 wrote to memory of 2584 2536 c7e1293ced0f737be3a9b57532fb1ce4.exe 29 PID 2536 wrote to memory of 692 2536 c7e1293ced0f737be3a9b57532fb1ce4.exe 30 PID 2536 wrote to memory of 692 2536 c7e1293ced0f737be3a9b57532fb1ce4.exe 30 PID 2536 wrote to memory of 692 2536 c7e1293ced0f737be3a9b57532fb1ce4.exe 30 PID 2536 wrote to memory of 692 2536 c7e1293ced0f737be3a9b57532fb1ce4.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\c7e1293ced0f737be3a9b57532fb1ce4.exe"C:\Users\Admin\AppData\Local\Temp\c7e1293ced0f737be3a9b57532fb1ce4.exe"1⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2536 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2932
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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:2584
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C:\Users\Admin\AppData\Local\Temp\bvanjvfbrdtciwoi.exe"C:\Users\Admin\AppData\Local\Temp\bvanjvfbrdtciwoi.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:692
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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
101KB
MD5c7e1293ced0f737be3a9b57532fb1ce4
SHA1680885f3826c7775c112c734cdc97a1cda17d0be
SHA2567e4ad8b40121445fd07609684f39a629054c5b6b0924d446c5a1dea80bf0452c
SHA51238bf57af0cca69f8f8cd6ed0184cd462c905f3466a260d6b1dd627caea31272804f72b1e4a7e41666dcaa50decbe1249124d42a7d8b1217c307e719e1bfa61ba