Analysis
- max time kernel
160s - max time network
140s - platform
windows7_x64 - resource
win7-en - submitted
16/09/2021, 08:23
Static task
static1
Behavioral task
behavioral1
Sample
8f3aada3f4b53e00902e37e055b7d800a220c960b85d3e66cdc1530ec4654500.dll
Resource
win7-en
0 signatures
0 seconds
General
- Target 8f3aada3f4b53e00902e37e055b7d800a220c960b85d3e66cdc1530ec4654500.dll
- Size 2.3MB
- Sample210916-j98fssfddk
- SHA256 8f3aada3f4b53e00902e37e055b7d800a220c960b85d3e66cdc1530ec4654500
- MD5 13fab176f0f1bba79b4499135545c7a6
- SHA1 e1632eb5d0cc0117a4d7aa5002a9ad773ac73c62
- SHA512 c56d3900d1740be6fbfab203cc8a85fe4257b95839f2cab4dd3f4292678d91577318f247b23432adf2511a7292c24270c5f55cbae94b31a20cf964949babbbe6
- MD5 SHA1 SHA512
Malware Config
Signatures
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resource yara_rule behavioral1/memory/1208-56-0x0000000002B10000-0x0000000002B11000-memory.dmp dridex_stager_shellcode - Executes dropped EXE 3 IoCs
pid Process 1636 DisplaySwitch.exe 1320 mmc.exe 1900 SystemPropertiesDataExecutionPrevention.exe - Loads dropped DLL 7 IoCs
pid Process 1208 Process not Found 1636 DisplaySwitch.exe 1208 Process not Found 1320 mmc.exe 1208 Process not Found 1900 SystemPropertiesDataExecutionPrevention.exe 1208 Process not Found - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000\Software\Microsoft\Windows\CurrentVersion\Run\Gtdwm = "C:\\Users\\Admin\\AppData\\Roaming\\MACROM~1\\FLASHP~1\\MACROM~1.COM\\support\\FLASHP~1\\K3HRY7~1\\mmc.exe" Process not Found -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA SystemPropertiesDataExecutionPrevention.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 DisplaySwitch.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA mmc.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1052 rundll32.exe 1052 rundll32.exe 1052 rundll32.exe 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1208 Process not Found - Suspicious use of FindShellTrayWindow 25 IoCs
pid Process 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found - Suspicious use of SendNotifyMessage 27 IoCs
pid Process 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found 1208 Process not Found - Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 1208 wrote to memory of 1544 1208 Process not Found 30 PID 1208 wrote to memory of 1544 1208 Process not Found 30 PID 1208 wrote to memory of 1544 1208 Process not Found 30 PID 1208 wrote to memory of 1636 1208 Process not Found 31 PID 1208 wrote to memory of 1636 1208 Process not Found 31 PID 1208 wrote to memory of 1636 1208 Process not Found 31 PID 1208 wrote to memory of 1392 1208 Process not Found 32 PID 1208 wrote to memory of 1392 1208 Process not Found 32 PID 1208 wrote to memory of 1392 1208 Process not Found 32 PID 1208 wrote to memory of 1320 1208 Process not Found 33 PID 1208 wrote to memory of 1320 1208 Process not Found 33 PID 1208 wrote to memory of 1320 1208 Process not Found 33 PID 1208 wrote to memory of 1696 1208 Process not Found 34 PID 1208 wrote to memory of 1696 1208 Process not Found 34 PID 1208 wrote to memory of 1696 1208 Process not Found 34 PID 1208 wrote to memory of 1900 1208 Process not Found 35 PID 1208 wrote to memory of 1900 1208 Process not Found 35 PID 1208 wrote to memory of 1900 1208 Process not Found 35
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\8f3aada3f4b53e00902e37e055b7d800a220c960b85d3e66cdc1530ec4654500.dll,#11⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
PID:1052
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C:\Windows\system32\DisplaySwitch.exeC:\Windows\system32\DisplaySwitch.exe1⤵PID:1544
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C:\Users\Admin\AppData\Local\16Y7\DisplaySwitch.exeC:\Users\Admin\AppData\Local\16Y7\DisplaySwitch.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:1636
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C:\Windows\system32\mmc.exeC:\Windows\system32\mmc.exe1⤵PID:1392
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C:\Users\Admin\AppData\Local\Jtyd2o1X\mmc.exeC:\Users\Admin\AppData\Local\Jtyd2o1X\mmc.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:1320
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C:\Windows\system32\SystemPropertiesDataExecutionPrevention.exeC:\Windows\system32\SystemPropertiesDataExecutionPrevention.exe1⤵PID:1696
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C:\Users\Admin\AppData\Local\rFKMj\SystemPropertiesDataExecutionPrevention.exeC:\Users\Admin\AppData\Local\rFKMj\SystemPropertiesDataExecutionPrevention.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:1900