Analysis
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max time kernel
145s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system -
submitted
25-01-2024 19:42
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
755a1b8f3303bbe40e318f03fa0d5df1.dll
Resource
win7-20231215-en
windows7-x64
4 signatures
150 seconds
General
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Target
755a1b8f3303bbe40e318f03fa0d5df1.dll
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Size
184KB
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MD5
755a1b8f3303bbe40e318f03fa0d5df1
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SHA1
9cdcb059ba83d68fd0211fb96a39c806b7119acc
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SHA256
a6f35ee75e81bc7cec2e73302f3878837835c8cba79d5ca5ce094508708bfe17
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SHA512
2ab60bac702c5c72b894579f22556b29b2be449b3774f942e41f0c0cb9ddd740d6e9bd1d9b5e804f9863c4cb21e48cf27ec05dd316602e04b67ded586fd768fc
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SSDEEP
3072:ypBt4RUnGdP8IEQXzCPzA6TkHZ2pClbpU9q3XpO9adx1Gyy8EG+pt5Mla0:ypj4anGdSu2b020lbpOApO9+x10lG+pq
Malware Config
Extracted
Family
dridex
Botnet
22203
C2
51.79.50.122:443
222.124.142.67:10443
138.201.222.158:4664
rc4.plain
rc4.plain
Signatures
-
Processes:
resource yara_rule behavioral2/memory/4900-0-0x0000000075700000-0x0000000075730000-memory.dmp dridex_ldr -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1660 4900 WerFault.exe rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
rundll32.exedescription pid process target process PID 2376 wrote to memory of 4900 2376 rundll32.exe rundll32.exe PID 2376 wrote to memory of 4900 2376 rundll32.exe rundll32.exe PID 2376 wrote to memory of 4900 2376 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\755a1b8f3303bbe40e318f03fa0d5df1.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\755a1b8f3303bbe40e318f03fa0d5df1.dll,#12⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4900 -s 6683⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4900 -ip 49001⤵