Analysis
-
max time kernel
120s -
max time network
135s -
submitted
01-01-1970 00:00
Static task
static1
Behavioral task
behavioral1
Sample
f820d9c19d6a222538667f6b4b5dcf19.dll
Resource
win7-en-20210920
windows7_x64
0 signatures
0 seconds
General
-
Target
f820d9c19d6a222538667f6b4b5dcf19.dll
-
Size
750KB
-
MD5
f820d9c19d6a222538667f6b4b5dcf19
-
SHA1
deeae3b491a84581f81f7c46bf61c7984006eb15
-
SHA256
5d34b512257bb2171dfb4a6e1fd2a8d1de5ed4e61fb51a6d2c3651a9cc121773
-
SHA512
08deac16f06d2208edc740672ff17224b01f282bc59eefde0c4bb489b315dbe4f095dfe2f29e266923e8143030f4f2622d03b7999edde1ccb4a199b4a09c767d
Malware Config
Extracted
Family
dridex
Botnet
10555
C2
192.46.210.220:443
143.244.140.214:808
45.77.0.96:6891
185.56.219.47:8116
rc4.plain
rc4.plain
Signatures
-
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 3 1876 rundll32.exe 6 1876 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 856 wrote to memory of 1876 856 rundll32.exe rundll32.exe PID 856 wrote to memory of 1876 856 rundll32.exe rundll32.exe PID 856 wrote to memory of 1876 856 rundll32.exe rundll32.exe PID 856 wrote to memory of 1876 856 rundll32.exe rundll32.exe PID 856 wrote to memory of 1876 856 rundll32.exe rundll32.exe PID 856 wrote to memory of 1876 856 rundll32.exe rundll32.exe PID 856 wrote to memory of 1876 856 rundll32.exe rundll32.exe
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\f820d9c19d6a222538667f6b4b5dcf19.dll,#11⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\f820d9c19d6a222538667f6b4b5dcf19.dll,#12⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
memory/1876-54-0x0000000000000000-mapping.dmp
-
memory/1876-55-0x00000000759B1000-0x00000000759B3000-memory.dmpFilesize
8KB
-
memory/1876-56-0x0000000075270000-0x0000000075339000-memory.dmpFilesize
804KB
-
memory/1876-58-0x0000000075270000-0x0000000075339000-memory.dmpFilesize
804KB
-
memory/1876-57-0x0000000075270000-0x00000000752AD000-memory.dmpFilesize
244KB
-
memory/1876-60-0x0000000000130000-0x0000000000131000-memory.dmpFilesize
4KB