Analysis
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max time kernel
73s -
max time network
91s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
11-06-2022 17:04
Static task
static1
Behavioral task
behavioral1
Sample
tz5mgy9.dll
Resource
win7-20220414-en
windows7_x64
0 signatures
0 seconds
General
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Target
tz5mgy9.dll
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Size
1.0MB
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MD5
c6c46576974a7ff8b9a7ff524b22f4a4
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SHA1
e5cba18fc2b89856cd7b5fd004c2f690b0c23848
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SHA256
1daf833cafa900edd60fd7cefbef566ef99a2777a3edde03c383a7ed6a8c2bd3
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SHA512
d2e8eb5a45e64d5efb05f448edbbfd4c4f2b1c6ed098e684c1d8bc2aad6f7d34ed09f87aacee36c886142a93702959da09d8d47f43ae4d9906df3e437ee93642
Malware Config
Extracted
Family
dridex
Botnet
10444
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
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Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 3 1792 rundll32.exe 5 1792 rundll32.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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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 1648 wrote to memory of 1792 1648 rundll32.exe rundll32.exe PID 1648 wrote to memory of 1792 1648 rundll32.exe rundll32.exe PID 1648 wrote to memory of 1792 1648 rundll32.exe rundll32.exe PID 1648 wrote to memory of 1792 1648 rundll32.exe rundll32.exe PID 1648 wrote to memory of 1792 1648 rundll32.exe rundll32.exe PID 1648 wrote to memory of 1792 1648 rundll32.exe rundll32.exe PID 1648 wrote to memory of 1792 1648 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\tz5mgy9.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1648 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\tz5mgy9.dll,#12⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:1792
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/1792-54-0x0000000000000000-mapping.dmp
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memory/1792-55-0x00000000755B1000-0x00000000755B3000-memory.dmpFilesize
8KB
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memory/1792-56-0x0000000074890000-0x00000000749AB000-memory.dmpFilesize
1.1MB
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memory/1792-57-0x0000000074890000-0x00000000748CD000-memory.dmpFilesize
244KB
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memory/1792-58-0x0000000074890000-0x00000000749AB000-memory.dmpFilesize
1.1MB
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memory/1792-60-0x0000000074890000-0x00000000749AB000-memory.dmpFilesize
1.1MB
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memory/1792-61-0x0000000074890000-0x00000000749AB000-memory.dmpFilesize
1.1MB