Analysis
-
max time kernel
8s -
max time network
67s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
12-11-2020 13:47
Static task
static1
Behavioral task
behavioral1
Sample
yh0aj4z[1].pdf.dll
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
Malware Config
Extracted
Family
dridex
Botnet
10444
C2
77.220.64.39:443
69.164.207.140:3388
78.47.139.43:4443
103.244.206.74:33443
rc4.plain
rc4.plain
Signatures
-
Processes:
resource yara_rule behavioral1/memory/1616-1-0x0000000000290000-0x00000000002CD000-memory.dmp dridex_ldr -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 4 1616 rundll32.exe 6 1616 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 336 wrote to memory of 1616 336 rundll32.exe rundll32.exe PID 336 wrote to memory of 1616 336 rundll32.exe rundll32.exe PID 336 wrote to memory of 1616 336 rundll32.exe rundll32.exe PID 336 wrote to memory of 1616 336 rundll32.exe rundll32.exe PID 336 wrote to memory of 1616 336 rundll32.exe rundll32.exe PID 336 wrote to memory of 1616 336 rundll32.exe rundll32.exe PID 336 wrote to memory of 1616 336 rundll32.exe rundll32.exe
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\yh0aj4z[1].pdf.dll,#11⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\yh0aj4z[1].pdf.dll,#12⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled