Analysis
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max time kernel
27s -
max time network
84s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
26-02-2021 11:09
Static task
static1
Behavioral task
behavioral1
Sample
3f9e2f49df05fceef07d02f4fafbe13be1ccda9d6c1a1f6d2c696223aa74a8b7.dll
Resource
win7v20201028
0 signatures
0 seconds
General
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Target
3f9e2f49df05fceef07d02f4fafbe13be1ccda9d6c1a1f6d2c696223aa74a8b7.dll
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Size
184KB
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MD5
f0180529d88cb26085eb68b6c7229061
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SHA1
e988faf614fb5ab7c8e06d7bca523bb39cdc496f
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SHA256
3f9e2f49df05fceef07d02f4fafbe13be1ccda9d6c1a1f6d2c696223aa74a8b7
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SHA512
c71033c82e679467a1718323fcfdaf4ad0b32fbde097f837b4b9e5d809f840c2f49e0c7dbaaa8a2887dcfdca875d7e09aaa88c7c340a3d522943c13412604b1b
Malware Config
Extracted
Family
dridex
Botnet
111
C2
162.13.114.59:443
70.39.99.196:8172
37.187.115.122:6601
rc4.plain
rc4.plain
Signatures
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Processes:
resource yara_rule behavioral1/memory/1328-4-0x00000000754C0000-0x00000000754F0000-memory.dmp dridex_ldr behavioral1/memory/1328-6-0x00000000754C0000-0x00000000754DF000-memory.dmp dridex_ldr -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 4 1328 rundll32.exe 6 1328 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 2028 wrote to memory of 1328 2028 rundll32.exe rundll32.exe PID 2028 wrote to memory of 1328 2028 rundll32.exe rundll32.exe PID 2028 wrote to memory of 1328 2028 rundll32.exe rundll32.exe PID 2028 wrote to memory of 1328 2028 rundll32.exe rundll32.exe PID 2028 wrote to memory of 1328 2028 rundll32.exe rundll32.exe PID 2028 wrote to memory of 1328 2028 rundll32.exe rundll32.exe PID 2028 wrote to memory of 1328 2028 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\3f9e2f49df05fceef07d02f4fafbe13be1ccda9d6c1a1f6d2c696223aa74a8b7.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\3f9e2f49df05fceef07d02f4fafbe13be1ccda9d6c1a1f6d2c696223aa74a8b7.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/1076-7-0x000007FEF7E60000-0x000007FEF80DA000-memory.dmpFilesize
2.5MB
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memory/1328-2-0x0000000000000000-mapping.dmp
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memory/1328-3-0x0000000075C31000-0x0000000075C33000-memory.dmpFilesize
8KB
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memory/1328-4-0x00000000754C0000-0x00000000754F0000-memory.dmpFilesize
192KB
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memory/1328-5-0x00000000001E0000-0x00000000001E6000-memory.dmpFilesize
24KB
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memory/1328-6-0x00000000754C0000-0x00000000754DF000-memory.dmpFilesize
124KB