Analysis
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max time kernel
30s -
max time network
151s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
25-02-2021 06:45
Static task
static1
Behavioral task
behavioral1
Sample
90b95a7e9b8c465732117863638aa9b2086b9a3b1265e94efc9c63e80e1a1406.dll
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
General
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Target
90b95a7e9b8c465732117863638aa9b2086b9a3b1265e94efc9c63e80e1a1406.dll
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Size
188KB
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MD5
14c4d320f2ef41575c734fac07c60824
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SHA1
74621c36c1dab21a7b5b2e83df49d892ae26b02c
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SHA256
90b95a7e9b8c465732117863638aa9b2086b9a3b1265e94efc9c63e80e1a1406
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SHA512
37d630cbf3cda91b861dc819404365d6179c03fecc71a6e7ffa52add2beada8a62b5c061f12f8518faa73b4b34b08c85c415da495a7f71e754020ac30171fa69
Malware Config
Extracted
Family
dridex
Botnet
111
C2
209.151.236.42:443
91.121.94.86:8172
5.189.144.136:6516
rc4.plain
rc4.plain
Signatures
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Processes:
resource yara_rule behavioral2/memory/3404-3-0x00000000737C0000-0x00000000737F1000-memory.dmp dridex_ldr behavioral2/memory/3404-5-0x00000000737C0000-0x00000000737DF000-memory.dmp dridex_ldr -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 17 3404 rundll32.exe 19 3404 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 3 IoCs
Processes:
rundll32.exedescription pid process target process PID 496 wrote to memory of 3404 496 rundll32.exe rundll32.exe PID 496 wrote to memory of 3404 496 rundll32.exe rundll32.exe PID 496 wrote to memory of 3404 496 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\90b95a7e9b8c465732117863638aa9b2086b9a3b1265e94efc9c63e80e1a1406.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\90b95a7e9b8c465732117863638aa9b2086b9a3b1265e94efc9c63e80e1a1406.dll,#12⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/3404-2-0x0000000000000000-mapping.dmp
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memory/3404-3-0x00000000737C0000-0x00000000737F1000-memory.dmpFilesize
196KB
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memory/3404-4-0x0000000002DE0000-0x0000000002DE6000-memory.dmpFilesize
24KB
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memory/3404-5-0x00000000737C0000-0x00000000737DF000-memory.dmpFilesize
124KB