Analysis
- max time kernel
154s - max time network
153s - platform
windows10_x64 - resource
win10-en-20210920 - submitted
28/09/2021, 09:28
Static task
static1
Behavioral task
behavioral1
Sample
fd327dd15819f0bfde36fba8dcf0ccc44ad76341bd32d55f6c8ce49fb6feb898.dll
Resource
win7-en-20210920
0 signatures
0 seconds
General
- Target fd327dd15819f0bfde36fba8dcf0ccc44ad76341bd32d55f6c8ce49fb6feb898.dll
- Size 1.1MB
- Sample210928-lfd17sbefl
- SHA256 fd327dd15819f0bfde36fba8dcf0ccc44ad76341bd32d55f6c8ce49fb6feb898
- MD5 1f90ccb1faf31a9f93f40446cd325ea0
- SHA1 04756c239ad53c84aea5082e84cf9f06551f14a8
- SHA512 e82487445dd4d33a0dd0e42325aa39f62935e5b3570bdb97a1dfe43d0a51db398c55b238cc689b94854bd2e676269feea97e8a423e8938597e69e053503056bc
- MD5 SHA1 SHA512
Malware Config
Signatures
-
resource yara_rule behavioral2/memory/1828-115-0x0000000140000000-0x000000014010D000-memory.dmp dridex_payload behavioral2/memory/1912-165-0x0000000140000000-0x000000014010E000-memory.dmp dridex_payload -
resource yara_rule behavioral2/memory/2972-121-0x0000000001180000-0x0000000001181000-memory.dmp dridex_stager_shellcode - Executes dropped EXE 3 IoCs
pid Process 1912 SystemPropertiesHardware.exe 1872 cmstp.exe 792 iexpress.exe - Loads dropped DLL 4 IoCs
pid Process 1912 SystemPropertiesHardware.exe 1872 cmstp.exe 1872 cmstp.exe 792 iexpress.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows\CurrentVersion\Run\Wjvmqhmsyzhtvy = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Spelling\\DEs6KA\\cmstp.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 SystemPropertiesHardware.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA cmstp.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA iexpress.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1828 rundll32.exe 1828 rundll32.exe 1828 rundll32.exe 1828 rundll32.exe 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found 2972 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2972 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2972 wrote to memory of 3496 2972 Process not Found 70 PID 2972 wrote to memory of 3496 2972 Process not Found 70 PID 2972 wrote to memory of 1912 2972 Process not Found 71 PID 2972 wrote to memory of 1912 2972 Process not Found 71 PID 2972 wrote to memory of 3756 2972 Process not Found 72 PID 2972 wrote to memory of 3756 2972 Process not Found 72 PID 2972 wrote to memory of 1872 2972 Process not Found 73 PID 2972 wrote to memory of 1872 2972 Process not Found 73 PID 2972 wrote to memory of 864 2972 Process not Found 74 PID 2972 wrote to memory of 864 2972 Process not Found 74 PID 2972 wrote to memory of 792 2972 Process not Found 75 PID 2972 wrote to memory of 792 2972 Process not Found 75
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\fd327dd15819f0bfde36fba8dcf0ccc44ad76341bd32d55f6c8ce49fb6feb898.dll,#11⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
PID:1828
-
C:\Windows\system32\SystemPropertiesHardware.exeC:\Windows\system32\SystemPropertiesHardware.exe1⤵PID:3496
-
C:\Users\Admin\AppData\Local\EKODIvI\SystemPropertiesHardware.exeC:\Users\Admin\AppData\Local\EKODIvI\SystemPropertiesHardware.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:1912
-
C:\Windows\system32\cmstp.exeC:\Windows\system32\cmstp.exe1⤵PID:3756
-
C:\Users\Admin\AppData\Local\QW1A\cmstp.exeC:\Users\Admin\AppData\Local\QW1A\cmstp.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:1872
-
C:\Windows\system32\iexpress.exeC:\Windows\system32\iexpress.exe1⤵PID:864
-
C:\Users\Admin\AppData\Local\BSrb9EG\iexpress.exeC:\Users\Admin\AppData\Local\BSrb9EG\iexpress.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
PID:792