Analysis
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max time kernel
120s -
max time network
72s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
17-12-2024 11:14
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe
Resource
win7-20240903-en
windows7-x64
16 signatures
120 seconds
General
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Target
e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe
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Size
101KB
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MD5
2605e3c1d5bfd029d9a889fba45367c9
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SHA1
2637e38242ebabaeef42befd29f985f4f4b4cf0e
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SHA256
e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556
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SHA512
6aeeefb6eda0fcee6345b38a37cf7fbf0d19fe94d0111d2719c735449a140415eecb0575c6f9f35dede1952eb8484b896f23f4809813861b7fa092271db389e2
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SSDEEP
3072:y/BI4QbZiKLq6RObXUKk6Ztd2/v0PFk8jwaaHw7Koj4rePE:eOXYKeqoE/v0K
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\\keacbbup\\skroleeg.exe" svchost.exe -
Ramnit family
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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 created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\skroleeg.exe svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\skroleeg.exe svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 2832 kpmjndgmynjipbrb.exe -
Impair Defenses: Safe Mode Boot 1 TTPs 3 IoCs
description ioc Process Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\Power svchost.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\WinDefend svchost.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\ProfSvc svchost.exe -
Loads dropped DLL 4 IoCs
pid Process 2276 e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe 2276 e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe 2276 e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe 2276 e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\SkrOleeg = "C:\\Users\\Admin\\AppData\\Local\\keacbbup\\skroleeg.exe" svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language kpmjndgmynjipbrb.exe -
Suspicious behavior: EnumeratesProcesses 60 IoCs
pid Process 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe 2540 svchost.exe -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 472 Process not Found -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeSecurityPrivilege 2276 e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe Token: SeDebugPrivilege 2276 e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe Token: SeSecurityPrivilege 2408 svchost.exe Token: SeSecurityPrivilege 2540 svchost.exe Token: SeDebugPrivilege 2540 svchost.exe Token: SeRestorePrivilege 2540 svchost.exe Token: SeBackupPrivilege 2540 svchost.exe Token: SeRestorePrivilege 2540 svchost.exe Token: SeBackupPrivilege 2540 svchost.exe Token: SeRestorePrivilege 2540 svchost.exe Token: SeBackupPrivilege 2540 svchost.exe Token: SeRestorePrivilege 2540 svchost.exe Token: SeBackupPrivilege 2540 svchost.exe Token: SeRestorePrivilege 2540 svchost.exe Token: SeBackupPrivilege 2540 svchost.exe Token: SeRestorePrivilege 2540 svchost.exe Token: SeBackupPrivilege 2540 svchost.exe Token: SeSecurityPrivilege 2832 kpmjndgmynjipbrb.exe Token: SeLoadDriverPrivilege 2832 kpmjndgmynjipbrb.exe Token: SeRestorePrivilege 2540 svchost.exe Token: SeBackupPrivilege 2540 svchost.exe Token: SeRestorePrivilege 2540 svchost.exe Token: SeBackupPrivilege 2540 svchost.exe Token: SeRestorePrivilege 2540 svchost.exe Token: SeBackupPrivilege 2540 svchost.exe Token: SeRestorePrivilege 2540 svchost.exe Token: SeBackupPrivilege 2540 svchost.exe Token: SeRestorePrivilege 2540 svchost.exe Token: SeBackupPrivilege 2540 svchost.exe Token: SeRestorePrivilege 2540 svchost.exe Token: SeBackupPrivilege 2540 svchost.exe Token: SeRestorePrivilege 2540 svchost.exe Token: SeBackupPrivilege 2540 svchost.exe Token: SeRestorePrivilege 2540 svchost.exe Token: SeBackupPrivilege 2540 svchost.exe Token: SeRestorePrivilege 2540 svchost.exe Token: SeBackupPrivilege 2540 svchost.exe Token: SeRestorePrivilege 2540 svchost.exe Token: SeBackupPrivilege 2540 svchost.exe Token: SeRestorePrivilege 2540 svchost.exe Token: SeBackupPrivilege 2540 svchost.exe Token: SeRestorePrivilege 2540 svchost.exe Token: SeBackupPrivilege 2540 svchost.exe Token: SeRestorePrivilege 2540 svchost.exe Token: SeBackupPrivilege 2540 svchost.exe Token: SeRestorePrivilege 2540 svchost.exe Token: SeBackupPrivilege 2540 svchost.exe Token: SeRestorePrivilege 2540 svchost.exe Token: SeBackupPrivilege 2540 svchost.exe Token: SeRestorePrivilege 2540 svchost.exe Token: SeBackupPrivilege 2540 svchost.exe Token: SeRestorePrivilege 2540 svchost.exe Token: SeBackupPrivilege 2540 svchost.exe Token: SeRestorePrivilege 2540 svchost.exe Token: SeBackupPrivilege 2540 svchost.exe Token: SeRestorePrivilege 2540 svchost.exe Token: SeBackupPrivilege 2540 svchost.exe Token: SeRestorePrivilege 2540 svchost.exe Token: SeBackupPrivilege 2540 svchost.exe Token: SeRestorePrivilege 2540 svchost.exe Token: SeBackupPrivilege 2540 svchost.exe Token: SeRestorePrivilege 2540 svchost.exe Token: SeBackupPrivilege 2540 svchost.exe Token: SeRestorePrivilege 2540 svchost.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 2276 wrote to memory of 2408 2276 e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe 28 PID 2276 wrote to memory of 2408 2276 e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe 28 PID 2276 wrote to memory of 2408 2276 e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe 28 PID 2276 wrote to memory of 2408 2276 e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe 28 PID 2276 wrote to memory of 2408 2276 e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe 28 PID 2276 wrote to memory of 2408 2276 e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe 28 PID 2276 wrote to memory of 2408 2276 e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe 28 PID 2276 wrote to memory of 2408 2276 e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe 28 PID 2276 wrote to memory of 2408 2276 e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe 28 PID 2276 wrote to memory of 2408 2276 e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe 28 PID 2276 wrote to memory of 2540 2276 e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe 29 PID 2276 wrote to memory of 2540 2276 e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe 29 PID 2276 wrote to memory of 2540 2276 e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe 29 PID 2276 wrote to memory of 2540 2276 e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe 29 PID 2276 wrote to memory of 2540 2276 e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe 29 PID 2276 wrote to memory of 2540 2276 e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe 29 PID 2276 wrote to memory of 2540 2276 e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe 29 PID 2276 wrote to memory of 2540 2276 e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe 29 PID 2276 wrote to memory of 2540 2276 e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe 29 PID 2276 wrote to memory of 2540 2276 e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe 29 PID 2276 wrote to memory of 2832 2276 e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe 30 PID 2276 wrote to memory of 2832 2276 e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe 30 PID 2276 wrote to memory of 2832 2276 e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe 30 PID 2276 wrote to memory of 2832 2276 e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe"C:\Users\Admin\AppData\Local\Temp\e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2276 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2408
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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
- Impair Defenses: Safe Mode Boot
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2540
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C:\Users\Admin\AppData\Local\Temp\kpmjndgmynjipbrb.exe"C:\Users\Admin\AppData\Local\Temp\kpmjndgmynjipbrb.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2832
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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
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
2Disable or Modify Tools
1Safe Mode Boot
1Modify Registry
3Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
101KB
MD52605e3c1d5bfd029d9a889fba45367c9
SHA12637e38242ebabaeef42befd29f985f4f4b4cf0e
SHA256e8e36758a1ec616c9def821e19d32ade432bae0edca9d441aa23c3afdbed8556
SHA5126aeeefb6eda0fcee6345b38a37cf7fbf0d19fe94d0111d2719c735449a140415eecb0575c6f9f35dede1952eb8484b896f23f4809813861b7fa092271db389e2