Analysis
- max time kernel
151s - max time network
123s - platform
windows10_x64 - resource
win10v20210408 - submitted
09/09/2021, 11:57
Static task
static1
Behavioral task
behavioral1
Sample
7557abfdcfdd8a7ea014e293f6ee974f03feb0112d095bee57f0b81e246b1084.dll
Resource
win7v20210408
0 signatures
0 seconds
General
- Target 7557abfdcfdd8a7ea014e293f6ee974f03feb0112d095bee57f0b81e246b1084.dll
- Size 1.4MB
- Sample210909-n4l3tsbccq
- SHA256 7557abfdcfdd8a7ea014e293f6ee974f03feb0112d095bee57f0b81e246b1084
- MD5 60345062d461a12366d6c9a194c5a94c
- SHA1 91b9f4ab6fb5e168352717ef76753489bdc0d6c5
- SHA512 082027a05a534326856d1989d194bae5fa45adf02a5312a65d1750b1a31f6fc79cbac0b0e1c031426c07d5164f53c218cd8f62dcaf707025817cc2ad8410cf2d
- MD5 SHA1 SHA512
Malware Config
Signatures
-
resource yara_rule behavioral2/memory/3052-119-0x0000000001270000-0x0000000001271000-memory.dmp dridex_stager_shellcode - Executes dropped EXE 3 IoCs
pid Process 3600 LicensingUI.exe 1036 BitLockerWizardElev.exe 2712 SystemPropertiesPerformance.exe - Loads dropped DLL 3 IoCs
pid Process 3600 LicensingUI.exe 1036 BitLockerWizardElev.exe 2712 SystemPropertiesPerformance.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rvhohwdqaanc = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\SystemCertificates\\My\\CRLs\\Yml2\\BitLockerWizardElev.exe" Process not Found -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rundll32.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA LicensingUI.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA BitLockerWizardElev.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA SystemPropertiesPerformance.exe - Modifies registry class 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance Process not Found Key created \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance Process not Found - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 784 rundll32.exe 784 rundll32.exe 784 rundll32.exe 784 rundll32.exe 784 rundll32.exe 784 rundll32.exe 784 rundll32.exe 784 rundll32.exe 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3052 Process not Found - Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeShutdownPrivilege 3052 Process not Found Token: SeCreatePagefilePrivilege 3052 Process not Found Token: SeShutdownPrivilege 3052 Process not Found Token: SeCreatePagefilePrivilege 3052 Process not Found Token: SeShutdownPrivilege 3052 Process not Found Token: SeCreatePagefilePrivilege 3052 Process not Found Token: SeShutdownPrivilege 3052 Process not Found Token: SeCreatePagefilePrivilege 3052 Process not Found Token: SeShutdownPrivilege 3052 Process not Found Token: SeCreatePagefilePrivilege 3052 Process not Found Token: SeShutdownPrivilege 3052 Process not Found Token: SeCreatePagefilePrivilege 3052 Process not Found - Suspicious use of FindShellTrayWindow 8 IoCs
pid Process 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 3052 wrote to memory of 3420 3052 Process not Found 75 PID 3052 wrote to memory of 3420 3052 Process not Found 75 PID 3052 wrote to memory of 3600 3052 Process not Found 76 PID 3052 wrote to memory of 3600 3052 Process not Found 76 PID 3052 wrote to memory of 740 3052 Process not Found 79 PID 3052 wrote to memory of 740 3052 Process not Found 79 PID 3052 wrote to memory of 1036 3052 Process not Found 80 PID 3052 wrote to memory of 1036 3052 Process not Found 80 PID 3052 wrote to memory of 1044 3052 Process not Found 81 PID 3052 wrote to memory of 1044 3052 Process not Found 81 PID 3052 wrote to memory of 2712 3052 Process not Found 82 PID 3052 wrote to memory of 2712 3052 Process not Found 82
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\7557abfdcfdd8a7ea014e293f6ee974f03feb0112d095bee57f0b81e246b1084.dll,#11⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
PID:784
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C:\Windows\system32\LicensingUI.exeC:\Windows\system32\LicensingUI.exe1⤵PID:3420
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C:\Users\Admin\AppData\Local\sE0YLZ\LicensingUI.exeC:\Users\Admin\AppData\Local\sE0YLZ\LicensingUI.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:3600
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C:\Windows\system32\BitLockerWizardElev.exeC:\Windows\system32\BitLockerWizardElev.exe1⤵PID:740
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C:\Users\Admin\AppData\Local\mGjDyQZE\BitLockerWizardElev.exeC:\Users\Admin\AppData\Local\mGjDyQZE\BitLockerWizardElev.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:1036
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C:\Windows\system32\SystemPropertiesPerformance.exeC:\Windows\system32\SystemPropertiesPerformance.exe1⤵PID:1044
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C:\Users\Admin\AppData\Local\JITm\SystemPropertiesPerformance.exeC:\Users\Admin\AppData\Local\JITm\SystemPropertiesPerformance.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:2712