Analysis
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max time kernel
56s -
max time network
60s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
05-03-2021 03:07
Static task
static1
General
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Target
fc123e475bd0c2dc00c470651ed35e56098a164c8a011d1387067019512e9b6d.dll
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Size
196KB
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MD5
7e29411fb147a05d8b6c9c3e983b263b
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SHA1
799506a393a9907a6aa1ddc66ff41eaba2d902e5
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SHA256
fc123e475bd0c2dc00c470651ed35e56098a164c8a011d1387067019512e9b6d
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SHA512
2a4aecd0c1fb7fc9ebed7ee2fda25c30a085b568216bff43fd93590d32c737749710e53a7c4824408c8333b81f3dac2e0fc781b7b77ca3ae41c9292c213792e3
Malware Config
Extracted
Family
dridex
Botnet
111
C2
37.247.35.132:443
50.243.30.51:6601
162.241.204.234:6516
rc4.plain
rc4.plain
Signatures
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Processes:
resource yara_rule behavioral1/memory/1176-4-0x00000000747C0000-0x00000000747F3000-memory.dmp dridex_ldr behavioral1/memory/1176-6-0x00000000747C0000-0x00000000747DF000-memory.dmp dridex_ldr -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 5 1176 rundll32.exe 8 1176 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 1968 wrote to memory of 1176 1968 rundll32.exe rundll32.exe PID 1968 wrote to memory of 1176 1968 rundll32.exe rundll32.exe PID 1968 wrote to memory of 1176 1968 rundll32.exe rundll32.exe PID 1968 wrote to memory of 1176 1968 rundll32.exe rundll32.exe PID 1968 wrote to memory of 1176 1968 rundll32.exe rundll32.exe PID 1968 wrote to memory of 1176 1968 rundll32.exe rundll32.exe PID 1968 wrote to memory of 1176 1968 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\fc123e475bd0c2dc00c470651ed35e56098a164c8a011d1387067019512e9b6d.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\fc123e475bd0c2dc00c470651ed35e56098a164c8a011d1387067019512e9b6d.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/760-7-0x000007FEF5E90000-0x000007FEF610A000-memory.dmpFilesize
2.5MB
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memory/1176-2-0x0000000000000000-mapping.dmp
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memory/1176-3-0x0000000075ED1000-0x0000000075ED3000-memory.dmpFilesize
8KB
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memory/1176-4-0x00000000747C0000-0x00000000747F3000-memory.dmpFilesize
204KB
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memory/1176-5-0x0000000000110000-0x0000000000116000-memory.dmpFilesize
24KB
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memory/1176-6-0x00000000747C0000-0x00000000747DF000-memory.dmpFilesize
124KB