Analysis
- max time kernel
154s - max time network
149s - platform
windows10_x64 - resource
win10-en - submitted
17/09/2021, 09:38
Static task
static1
Behavioral task
behavioral1
Sample
8cfbaaadf5480a9dd8b8f9269e49286890c9ccbfb7dff8b2aef52b0f0bbf319e.dll
Resource
win7-en-20210916
0 signatures
0 seconds
General
- Target 8cfbaaadf5480a9dd8b8f9269e49286890c9ccbfb7dff8b2aef52b0f0bbf319e.dll
- Size 2.5MB
- Sample210917-ll5fcaaagq
- SHA256 8cfbaaadf5480a9dd8b8f9269e49286890c9ccbfb7dff8b2aef52b0f0bbf319e
- MD5 2b6fe9053451f5e2ed7f249e178eed67
- SHA1 fe79b1a05e641eab0a9fea55e2829e5407d818b8
- SHA512 90b8ab0dd2976d2a6708b6ac1d4d90f7f6b1ddf82315779cde1fe0688a50be6a13a2b6bab457904f09f6ef85e12608d9484f31d8836f2002a9fa2771f472c1eb
- MD5 SHA1 SHA512
Malware Config
Signatures
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resource yara_rule behavioral2/memory/3016-120-0x0000000002C30000-0x0000000002C31000-memory.dmp dridex_stager_shellcode - Executes dropped EXE 3 IoCs
pid Process 4972 BitLockerWizardElev.exe 3572 AgentService.exe 3440 recdisc.exe - Loads dropped DLL 3 IoCs
pid Process 4972 BitLockerWizardElev.exe 3572 AgentService.exe 3440 recdisc.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000\Software\Microsoft\Windows\CurrentVersion\Run\Wzmtblrj = "C:\\Users\\Admin\\AppData\\Roaming\\MICROS~1\\INTERN~1\\UserData\\Low\\QY2dcV4\\8Go\\AGENTS~1.EXE" Process not Found -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA recdisc.exe 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 BitLockerWizardElev.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA AgentService.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-1-5-21-2559286294-2439613352-4032193287-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance Process not Found - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4648 rundll32.exe 4648 rundll32.exe 4648 rundll32.exe 4648 rundll32.exe 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3016 Process not Found - Suspicious use of AdjustPrivilegeToken 8 IoCs
description pid Process Token: SeShutdownPrivilege 3016 Process not Found Token: SeCreatePagefilePrivilege 3016 Process not Found Token: SeShutdownPrivilege 3016 Process not Found Token: SeCreatePagefilePrivilege 3016 Process not Found Token: SeShutdownPrivilege 3016 Process not Found Token: SeCreatePagefilePrivilege 3016 Process not Found Token: SeShutdownPrivilege 3016 Process not Found Token: SeCreatePagefilePrivilege 3016 Process not Found - Suspicious use of FindShellTrayWindow 9 IoCs
pid Process 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found 3016 Process not Found - Suspicious use of SendNotifyMessage 1 IoCs
pid Process 3016 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 3016 wrote to memory of 4964 3016 Process not Found 70 PID 3016 wrote to memory of 4964 3016 Process not Found 70 PID 3016 wrote to memory of 4972 3016 Process not Found 71 PID 3016 wrote to memory of 4972 3016 Process not Found 71 PID 3016 wrote to memory of 5076 3016 Process not Found 72 PID 3016 wrote to memory of 5076 3016 Process not Found 72 PID 3016 wrote to memory of 3572 3016 Process not Found 75 PID 3016 wrote to memory of 3572 3016 Process not Found 75 PID 3016 wrote to memory of 3356 3016 Process not Found 76 PID 3016 wrote to memory of 3356 3016 Process not Found 76 PID 3016 wrote to memory of 3440 3016 Process not Found 77 PID 3016 wrote to memory of 3440 3016 Process not Found 77
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\8cfbaaadf5480a9dd8b8f9269e49286890c9ccbfb7dff8b2aef52b0f0bbf319e.dll,#11⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
PID:4648
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C:\Windows\system32\BitLockerWizardElev.exeC:\Windows\system32\BitLockerWizardElev.exe1⤵PID:4964
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C:\Users\Admin\AppData\Local\ZgTFxd30\BitLockerWizardElev.exeC:\Users\Admin\AppData\Local\ZgTFxd30\BitLockerWizardElev.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:4972
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C:\Windows\system32\AgentService.exeC:\Windows\system32\AgentService.exe1⤵PID:5076
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C:\Users\Admin\AppData\Local\CEiHGzZP\AgentService.exeC:\Users\Admin\AppData\Local\CEiHGzZP\AgentService.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:3572
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C:\Windows\system32\recdisc.exeC:\Windows\system32\recdisc.exe1⤵PID:3356
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C:\Users\Admin\AppData\Local\ZeYHGU\recdisc.exeC:\Users\Admin\AppData\Local\ZeYHGU\recdisc.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:3440