Analysis
- max time kernel
151s - max time network
121s - platform
windows7_x64 - resource
win7-en-20210920 - submitted
29/09/2021, 07:24
Static task
static1
Behavioral task
behavioral1
Sample
f2920b6ddb773bc41fe148635f7f3aa2c95c64ebae3ce414a5b42de85221def7.dll
Resource
win7-en-20210920
0 signatures
0 seconds
General
- Target f2920b6ddb773bc41fe148635f7f3aa2c95c64ebae3ce414a5b42de85221def7.dll
- Size 3.0MB
- Sample210929-h8dpcseber
- SHA256 f2920b6ddb773bc41fe148635f7f3aa2c95c64ebae3ce414a5b42de85221def7
- MD5 581c0372c81e6d3e539a1e6efca2b0ec
- SHA1 dd5c7db85a600f3f19660a7c94d1e11605cf80a5
- SHA512 5d5cd0741de753685b17cab85c4ace7fc80c543850575f615660d5a40c0167da608f7fea82c680682f6e8fe85e55785a2069e0acd11982c2be0255627a2281d6
- MD5 SHA1 SHA512
Malware Config
Signatures
-
resource yara_rule behavioral1/memory/1408-56-0x0000000002B10000-0x0000000002B11000-memory.dmp dridex_stager_shellcode - Executes dropped EXE 3 IoCs
pid Process 568 sdclt.exe 1152 wextract.exe 948 mfpmp.exe - Loads dropped DLL 7 IoCs
pid Process 1408 Process not Found 568 sdclt.exe 1408 Process not Found 1152 wextract.exe 1408 Process not Found 948 mfpmp.exe 1408 Process not Found - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows\CurrentVersion\Run\Wbbdywj = "C:\\Users\\Admin\\AppData\\Roaming\\MICROS~1\\INTERN~1\\QUICKL~1\\2SQ\\wextract.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 sdclt.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA wextract.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA mfpmp.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1740 rundll32.exe 1740 rundll32.exe 1740 rundll32.exe 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1408 Process not Found - Suspicious use of FindShellTrayWindow 4 IoCs
pid Process 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found - Suspicious use of SendNotifyMessage 4 IoCs
pid Process 1408 Process not Found 1408 Process not Found 1408 Process not Found 1408 Process not Found - Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 1408 wrote to memory of 1364 1408 Process not Found 27 PID 1408 wrote to memory of 1364 1408 Process not Found 27 PID 1408 wrote to memory of 1364 1408 Process not Found 27 PID 1408 wrote to memory of 568 1408 Process not Found 28 PID 1408 wrote to memory of 568 1408 Process not Found 28 PID 1408 wrote to memory of 568 1408 Process not Found 28 PID 1408 wrote to memory of 376 1408 Process not Found 29 PID 1408 wrote to memory of 376 1408 Process not Found 29 PID 1408 wrote to memory of 376 1408 Process not Found 29 PID 1408 wrote to memory of 1152 1408 Process not Found 30 PID 1408 wrote to memory of 1152 1408 Process not Found 30 PID 1408 wrote to memory of 1152 1408 Process not Found 30 PID 1408 wrote to memory of 756 1408 Process not Found 31 PID 1408 wrote to memory of 756 1408 Process not Found 31 PID 1408 wrote to memory of 756 1408 Process not Found 31 PID 1408 wrote to memory of 948 1408 Process not Found 32 PID 1408 wrote to memory of 948 1408 Process not Found 32 PID 1408 wrote to memory of 948 1408 Process not Found 32
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\f2920b6ddb773bc41fe148635f7f3aa2c95c64ebae3ce414a5b42de85221def7.dll,#11⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
PID:1740
-
C:\Windows\system32\sdclt.exeC:\Windows\system32\sdclt.exe1⤵PID:1364
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C:\Users\Admin\AppData\Local\irxu\sdclt.exeC:\Users\Admin\AppData\Local\irxu\sdclt.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:568
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C:\Windows\system32\wextract.exeC:\Windows\system32\wextract.exe1⤵PID:376
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C:\Users\Admin\AppData\Local\QZddN\wextract.exeC:\Users\Admin\AppData\Local\QZddN\wextract.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:1152
-
C:\Windows\system32\mfpmp.exeC:\Windows\system32\mfpmp.exe1⤵PID:756
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C:\Users\Admin\AppData\Local\knWQQ2\mfpmp.exeC:\Users\Admin\AppData\Local\knWQQ2\mfpmp.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:948