Analysis
- max time kernel
148s - max time network
149s - platform
windows7_x64 - resource
win7v20201028 - submitted
11/11/2020, 11:41
Static task
static1
Behavioral task
behavioral1
Sample
22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe
Resource
win10v20201028
windows10_x64
0 signatures
0 seconds
General
- Target 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe
- Size 349KB
- Sample201111-bbk872d64s
- SHA256 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9
- MD5 61c6858c5ecd6f8c83bc8d318d9f9c5f
- SHA1 4599c48f5a2057c7f07327e14de76f878a6170f4
- SHA512 69b386ff6647d80beb1e6d3976819fd3bf9f07a9155dbb2895b5d2cceb7b9445df438eeb9723cfe13faccf97d04e6ecbd87209c26dc7b6413d5ad18ce87e90b0
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Signatures
- Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Local\\Temp\\windows\\msdcsc.exe" 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe - Executes dropped EXE 1 IoCs
pid Process 2008 msdcsc.exe -
resource yara_rule behavioral1/files/0x00040000000130e4-3.dat upx behavioral1/files/0x00040000000130e4-4.dat upx behavioral1/files/0x00040000000130e4-6.dat upx behavioral1/files/0x00040000000130e4-7.dat upx - Deletes itself 1 IoCs
pid Process 1952 notepad.exe - Loads dropped DLL 2 IoCs
pid Process 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe - Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\windows\\msdcsc.exe" 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Set value (str) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\windows\\msdcsc.exe" msdcsc.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious use of AdjustPrivilegeToken 46 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeSecurityPrivilege 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeTakeOwnershipPrivilege 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeLoadDriverPrivilege 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeSystemProfilePrivilege 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeSystemtimePrivilege 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeProfSingleProcessPrivilege 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeIncBasePriorityPrivilege 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeCreatePagefilePrivilege 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeBackupPrivilege 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeRestorePrivilege 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeShutdownPrivilege 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeDebugPrivilege 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeSystemEnvironmentPrivilege 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeChangeNotifyPrivilege 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeRemoteShutdownPrivilege 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeUndockPrivilege 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeManageVolumePrivilege 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeImpersonatePrivilege 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeCreateGlobalPrivilege 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: 33 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: 34 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: 35 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe Token: SeIncreaseQuotaPrivilege 2008 msdcsc.exe Token: SeSecurityPrivilege 2008 msdcsc.exe Token: SeTakeOwnershipPrivilege 2008 msdcsc.exe Token: SeLoadDriverPrivilege 2008 msdcsc.exe Token: SeSystemProfilePrivilege 2008 msdcsc.exe Token: SeSystemtimePrivilege 2008 msdcsc.exe Token: SeProfSingleProcessPrivilege 2008 msdcsc.exe Token: SeIncBasePriorityPrivilege 2008 msdcsc.exe Token: SeCreatePagefilePrivilege 2008 msdcsc.exe Token: SeBackupPrivilege 2008 msdcsc.exe Token: SeRestorePrivilege 2008 msdcsc.exe Token: SeShutdownPrivilege 2008 msdcsc.exe Token: SeDebugPrivilege 2008 msdcsc.exe Token: SeSystemEnvironmentPrivilege 2008 msdcsc.exe Token: SeChangeNotifyPrivilege 2008 msdcsc.exe Token: SeRemoteShutdownPrivilege 2008 msdcsc.exe Token: SeUndockPrivilege 2008 msdcsc.exe Token: SeManageVolumePrivilege 2008 msdcsc.exe Token: SeImpersonatePrivilege 2008 msdcsc.exe Token: SeCreateGlobalPrivilege 2008 msdcsc.exe Token: 33 2008 msdcsc.exe Token: 34 2008 msdcsc.exe Token: 35 2008 msdcsc.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2008 msdcsc.exe - Suspicious use of WriteProcessMemory 22 IoCs
description pid Process procid_target PID 364 wrote to memory of 1952 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe 26 PID 364 wrote to memory of 1952 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe 26 PID 364 wrote to memory of 1952 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe 26 PID 364 wrote to memory of 1952 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe 26 PID 364 wrote to memory of 1952 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe 26 PID 364 wrote to memory of 1952 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe 26 PID 364 wrote to memory of 1952 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe 26 PID 364 wrote to memory of 1952 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe 26 PID 364 wrote to memory of 1952 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe 26 PID 364 wrote to memory of 1952 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe 26 PID 364 wrote to memory of 1952 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe 26 PID 364 wrote to memory of 1952 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe 26 PID 364 wrote to memory of 1952 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe 26 PID 364 wrote to memory of 1952 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe 26 PID 364 wrote to memory of 1952 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe 26 PID 364 wrote to memory of 1952 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe 26 PID 364 wrote to memory of 1952 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe 26 PID 364 wrote to memory of 1952 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe 26 PID 364 wrote to memory of 2008 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe 27 PID 364 wrote to memory of 2008 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe 27 PID 364 wrote to memory of 2008 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe 27 PID 364 wrote to memory of 2008 364 22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe"C:\Users\Admin\AppData\Local\Temp\22bd78032eb5a2e9022d2463fcc89566e6304562745f0333a4e8e246032f02e9.exe"1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:364 -
C:\Windows\SysWOW64\notepad.exenotepad2⤵
- Deletes itself
PID:1952
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C:\Users\Admin\AppData\Local\Temp\windows\msdcsc.exe"C:\Users\Admin\AppData\Local\Temp\windows\msdcsc.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2008
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