Analysis
- max time kernel
160s - max time network
136s - platform
windows10_x64 - resource
win10-en - submitted
08/09/2021, 06:26
Static task
static1
Behavioral task
behavioral1
Sample
65743db283116d3f385fffeb2409678de86a38871c87a17c7e7069e13537307c.dll
Resource
win7v20210408
0 signatures
0 seconds
General
- Target 65743db283116d3f385fffeb2409678de86a38871c87a17c7e7069e13537307c.dll
- Size 1.7MB
- Sample210908-g69tcahbbj
- SHA256 65743db283116d3f385fffeb2409678de86a38871c87a17c7e7069e13537307c
- MD5 38cd13ed47a3c524d20ec83427dec9b0
- SHA1 56b8f627c1a72a45def22aa731ab1750f40dd386
- SHA512 46d3a59a6adff0fd84614d54799bb09948f842270a615ae676f8262cae5b6a906e662c8e3dcfa4437dc4dddb31198d8be04ddf320d6fcf16e7af0cfae2168d33
- MD5 SHA1 SHA512
Malware Config
Signatures
-
resource yara_rule behavioral2/memory/2996-120-0x0000000000740000-0x0000000000741000-memory.dmp dridex_stager_shellcode - Executes dropped EXE 3 IoCs
pid Process 3776 DeviceEnroller.exe 3340 DevicePairingWizard.exe 2096 raserver.exe - Loads dropped DLL 3 IoCs
pid Process 3776 DeviceEnroller.exe 3340 DevicePairingWizard.exe 2096 raserver.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\\Windows\\NETWOR~1\\V4XQ9C~1\\DEVICE~1.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 DeviceEnroller.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA DevicePairingWizard.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA raserver.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 3388 rundll32.exe 3388 rundll32.exe 3388 rundll32.exe 3388 rundll32.exe 3388 rundll32.exe 3388 rundll32.exe 3388 rundll32.exe 3388 rundll32.exe 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2996 Process not Found - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeShutdownPrivilege 2996 Process not Found Token: SeCreatePagefilePrivilege 2996 Process not Found Token: SeShutdownPrivilege 2996 Process not Found Token: SeCreatePagefilePrivilege 2996 Process not Found - Suspicious use of FindShellTrayWindow 9 IoCs
pid Process 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found 2996 Process not Found - Suspicious use of SendNotifyMessage 1 IoCs
pid Process 2996 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2996 wrote to memory of 2176 2996 Process not Found 76 PID 2996 wrote to memory of 2176 2996 Process not Found 76 PID 2996 wrote to memory of 3776 2996 Process not Found 77 PID 2996 wrote to memory of 3776 2996 Process not Found 77 PID 2996 wrote to memory of 2324 2996 Process not Found 78 PID 2996 wrote to memory of 2324 2996 Process not Found 78 PID 2996 wrote to memory of 3340 2996 Process not Found 81 PID 2996 wrote to memory of 3340 2996 Process not Found 81 PID 2996 wrote to memory of 1880 2996 Process not Found 82 PID 2996 wrote to memory of 1880 2996 Process not Found 82 PID 2996 wrote to memory of 2096 2996 Process not Found 83 PID 2996 wrote to memory of 2096 2996 Process not Found 83
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\65743db283116d3f385fffeb2409678de86a38871c87a17c7e7069e13537307c.dll,#11⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
PID:3388
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C:\Windows\system32\DeviceEnroller.exeC:\Windows\system32\DeviceEnroller.exe1⤵PID:2176
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C:\Users\Admin\AppData\Local\YDjmdi\DeviceEnroller.exeC:\Users\Admin\AppData\Local\YDjmdi\DeviceEnroller.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:3776
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C:\Windows\system32\DevicePairingWizard.exeC:\Windows\system32\DevicePairingWizard.exe1⤵PID:2324
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C:\Users\Admin\AppData\Local\2JMjaaWUO\DevicePairingWizard.exeC:\Users\Admin\AppData\Local\2JMjaaWUO\DevicePairingWizard.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:3340
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C:\Windows\system32\raserver.exeC:\Windows\system32\raserver.exe1⤵PID:1880
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C:\Users\Admin\AppData\Local\Tjvlj\raserver.exeC:\Users\Admin\AppData\Local\Tjvlj\raserver.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:2096