Analysis
-
max time kernel
131s -
max time network
131s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
02-12-2020 19:00
Static task
static1
Behavioral task
behavioral1
Sample
uxtvys[1].rar.dll
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
Malware Config
Extracted
Family
dridex
Botnet
10555
C2
185.59.223.86:443
123.231.252.10:4646
85.25.109.116:3889
91.83.93.89:4643
rc4.plain
rc4.plain
Signatures
-
Processes:
resource yara_rule behavioral1/memory/1488-3-0x0000000000370000-0x00000000003AD000-memory.dmp dridex_ldr -
Blocklisted process makes network request 4 IoCs
Processes:
rundll32.exeflow pid process 3 1488 rundll32.exe 6 1488 rundll32.exe 8 1488 rundll32.exe 9 1488 rundll32.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
Processes:
rundll32.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rundll32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
rundll32.exedescription pid process target process PID 1208 wrote to memory of 1488 1208 rundll32.exe rundll32.exe PID 1208 wrote to memory of 1488 1208 rundll32.exe rundll32.exe PID 1208 wrote to memory of 1488 1208 rundll32.exe rundll32.exe PID 1208 wrote to memory of 1488 1208 rundll32.exe rundll32.exe PID 1208 wrote to memory of 1488 1208 rundll32.exe rundll32.exe PID 1208 wrote to memory of 1488 1208 rundll32.exe rundll32.exe PID 1208 wrote to memory of 1488 1208 rundll32.exe rundll32.exe
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\uxtvys[1].rar.dll,#11⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\uxtvys[1].rar.dll,#12⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled