Analysis
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max time kernel
30s -
max time network
89s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
03-03-2021 19:05
Static task
static1
Behavioral task
behavioral1
Sample
8f1172ce8d65d23f1db2c6d012ab5268eed0a5db158253be1da396aedc8af5e9.dll
Resource
win7v20201028
0 signatures
0 seconds
General
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Target
8f1172ce8d65d23f1db2c6d012ab5268eed0a5db158253be1da396aedc8af5e9.dll
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Size
188KB
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MD5
3b83f8722306f694e7e33574e99dedb8
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SHA1
2888cb0d355bcdf6e48c78323649cf205369258d
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SHA256
8f1172ce8d65d23f1db2c6d012ab5268eed0a5db158253be1da396aedc8af5e9
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SHA512
f8f4cf3e12ddf813414b5ac4a2569f55e753509fca8a449825ea2cf5627e7e6bec04b5d5f428340e34b091b0945a5eeed6c5caba0f669e99000f401744532edb
Malware Config
Extracted
Family
dridex
Botnet
111
C2
116.251.211.158:443
216.10.242.142:6601
37.247.35.137:6601
rc4.plain
rc4.plain
Signatures
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Processes:
resource yara_rule behavioral1/memory/1236-4-0x00000000750A0000-0x00000000750D1000-memory.dmp dridex_ldr behavioral1/memory/1236-6-0x00000000750A0000-0x00000000750BF000-memory.dmp dridex_ldr -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 5 1236 rundll32.exe 8 1236 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 1924 wrote to memory of 1236 1924 rundll32.exe rundll32.exe PID 1924 wrote to memory of 1236 1924 rundll32.exe rundll32.exe PID 1924 wrote to memory of 1236 1924 rundll32.exe rundll32.exe PID 1924 wrote to memory of 1236 1924 rundll32.exe rundll32.exe PID 1924 wrote to memory of 1236 1924 rundll32.exe rundll32.exe PID 1924 wrote to memory of 1236 1924 rundll32.exe rundll32.exe PID 1924 wrote to memory of 1236 1924 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\8f1172ce8d65d23f1db2c6d012ab5268eed0a5db158253be1da396aedc8af5e9.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\8f1172ce8d65d23f1db2c6d012ab5268eed0a5db158253be1da396aedc8af5e9.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/752-7-0x000007FEF79D0000-0x000007FEF7C4A000-memory.dmpFilesize
2.5MB
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memory/1236-2-0x0000000000000000-mapping.dmp
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memory/1236-3-0x0000000075AE1000-0x0000000075AE3000-memory.dmpFilesize
8KB
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memory/1236-4-0x00000000750A0000-0x00000000750D1000-memory.dmpFilesize
196KB
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memory/1236-5-0x00000000000D0000-0x00000000000D6000-memory.dmpFilesize
24KB
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memory/1236-6-0x00000000750A0000-0x00000000750BF000-memory.dmpFilesize
124KB