Analysis
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max time kernel
34s -
max time network
91s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
03-03-2021 19:06
Static task
static1
Behavioral task
behavioral1
Sample
72e94cd95844a1de9dc4254483701be00a00812c6efb224b71c683f8840912b8.dll
Resource
win7v20201028
0 signatures
0 seconds
General
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Target
72e94cd95844a1de9dc4254483701be00a00812c6efb224b71c683f8840912b8.dll
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Size
188KB
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MD5
8ea6fec39a1e0414628216a5817c2ec6
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SHA1
c7a171ad799246c457ca2f355168515af287bd26
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SHA256
72e94cd95844a1de9dc4254483701be00a00812c6efb224b71c683f8840912b8
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SHA512
9f5568365de1c1132b213e036e128167a21ddf98ab6bd5c5dcc90fb1ae0ac7e90e18fb5059d8bb5c26a334269a8ea5178d37ed15d9445b84e98c292466da5f5f
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/1468-4-0x0000000074950000-0x0000000074981000-memory.dmp dridex_ldr behavioral1/memory/1468-6-0x0000000074950000-0x000000007496F000-memory.dmp dridex_ldr -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 4 1468 rundll32.exe 7 1468 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 1316 wrote to memory of 1468 1316 rundll32.exe rundll32.exe PID 1316 wrote to memory of 1468 1316 rundll32.exe rundll32.exe PID 1316 wrote to memory of 1468 1316 rundll32.exe rundll32.exe PID 1316 wrote to memory of 1468 1316 rundll32.exe rundll32.exe PID 1316 wrote to memory of 1468 1316 rundll32.exe rundll32.exe PID 1316 wrote to memory of 1468 1316 rundll32.exe rundll32.exe PID 1316 wrote to memory of 1468 1316 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\72e94cd95844a1de9dc4254483701be00a00812c6efb224b71c683f8840912b8.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\72e94cd95844a1de9dc4254483701be00a00812c6efb224b71c683f8840912b8.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/1444-7-0x000007FEF7300000-0x000007FEF757A000-memory.dmpFilesize
2.5MB
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memory/1468-2-0x0000000000000000-mapping.dmp
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memory/1468-3-0x0000000076241000-0x0000000076243000-memory.dmpFilesize
8KB
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memory/1468-4-0x0000000074950000-0x0000000074981000-memory.dmpFilesize
196KB
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memory/1468-5-0x0000000000200000-0x0000000000206000-memory.dmpFilesize
24KB
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memory/1468-6-0x0000000074950000-0x000000007496F000-memory.dmpFilesize
124KB