Analysis
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max time kernel
33s -
max time network
93s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
26-02-2021 11:01
Static task
static1
Behavioral task
behavioral1
Sample
6bf9cd30ab801aa6794ba8736e9665d259e4d837a8c599b83c325cdbd50be5b5.dll
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
General
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Target
6bf9cd30ab801aa6794ba8736e9665d259e4d837a8c599b83c325cdbd50be5b5.dll
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Size
184KB
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MD5
5380e4a025672b404d98f11da60d82d0
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SHA1
78bdf1fad42d814bc97d8f95400a0944dd1a286c
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SHA256
6bf9cd30ab801aa6794ba8736e9665d259e4d837a8c599b83c325cdbd50be5b5
-
SHA512
f6342409b44862171448559ade03c238225f73d2b3900abf832e58c5e8b048118b9408d4c9977f6853c11986455a2f69ecad4c10bab7c33a9bb9322350d30466
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/1908-4-0x0000000074970000-0x00000000749A0000-memory.dmp dridex_ldr behavioral1/memory/1908-6-0x0000000074970000-0x000000007498F000-memory.dmp dridex_ldr -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 4 1908 rundll32.exe 7 1908 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 384 wrote to memory of 1908 384 rundll32.exe rundll32.exe PID 384 wrote to memory of 1908 384 rundll32.exe rundll32.exe PID 384 wrote to memory of 1908 384 rundll32.exe rundll32.exe PID 384 wrote to memory of 1908 384 rundll32.exe rundll32.exe PID 384 wrote to memory of 1908 384 rundll32.exe rundll32.exe PID 384 wrote to memory of 1908 384 rundll32.exe rundll32.exe PID 384 wrote to memory of 1908 384 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\6bf9cd30ab801aa6794ba8736e9665d259e4d837a8c599b83c325cdbd50be5b5.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\6bf9cd30ab801aa6794ba8736e9665d259e4d837a8c599b83c325cdbd50be5b5.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/1532-7-0x000007FEF7300000-0x000007FEF757A000-memory.dmpFilesize
2.5MB
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memory/1908-2-0x0000000000000000-mapping.dmp
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memory/1908-3-0x0000000076241000-0x0000000076243000-memory.dmpFilesize
8KB
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memory/1908-4-0x0000000074970000-0x00000000749A0000-memory.dmpFilesize
192KB
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memory/1908-5-0x00000000001A0000-0x00000000001A6000-memory.dmpFilesize
24KB
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memory/1908-6-0x0000000074970000-0x000000007498F000-memory.dmpFilesize
124KB