Analysis
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max time kernel
50s -
max time network
87s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
04-03-2021 09:04
Static task
static1
Behavioral task
behavioral1
Sample
486770fa5f6579da6c4e36aa99ab1888bfd6769149375a7ba7e2ab918754a190.dll
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
General
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Target
486770fa5f6579da6c4e36aa99ab1888bfd6769149375a7ba7e2ab918754a190.dll
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Size
196KB
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MD5
057473d1a8fbb4d0dc062d7d4f18d3a9
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SHA1
dddd727eb39caa3622626530f2108f2aa45ccbe1
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SHA256
486770fa5f6579da6c4e36aa99ab1888bfd6769149375a7ba7e2ab918754a190
-
SHA512
e8ecbc3ed5e53c519de33b55fd4790c9e7a606cc605c16fa04245548fc5447f5ac1c54e51839dfbfaa8f8472312e80345b9457f54f0ed8eeda87e9e60d30bed5
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/1800-4-0x0000000074A10000-0x0000000074A43000-memory.dmp dridex_ldr behavioral1/memory/1800-6-0x0000000074A10000-0x0000000074A2F000-memory.dmp dridex_ldr -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 5 1800 rundll32.exe 8 1800 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 844 wrote to memory of 1800 844 rundll32.exe rundll32.exe PID 844 wrote to memory of 1800 844 rundll32.exe rundll32.exe PID 844 wrote to memory of 1800 844 rundll32.exe rundll32.exe PID 844 wrote to memory of 1800 844 rundll32.exe rundll32.exe PID 844 wrote to memory of 1800 844 rundll32.exe rundll32.exe PID 844 wrote to memory of 1800 844 rundll32.exe rundll32.exe PID 844 wrote to memory of 1800 844 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\486770fa5f6579da6c4e36aa99ab1888bfd6769149375a7ba7e2ab918754a190.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\486770fa5f6579da6c4e36aa99ab1888bfd6769149375a7ba7e2ab918754a190.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/656-7-0x000007FEF81B0000-0x000007FEF842A000-memory.dmpFilesize
2.5MB
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memory/1800-0-0x0000000000000000-mapping.dmp
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memory/1800-1-0x00000000761E1000-0x00000000761E3000-memory.dmpFilesize
8KB
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memory/1800-4-0x0000000074A10000-0x0000000074A43000-memory.dmpFilesize
204KB
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memory/1800-5-0x0000000000160000-0x0000000000166000-memory.dmpFilesize
24KB
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memory/1800-6-0x0000000074A10000-0x0000000074A2F000-memory.dmpFilesize
124KB