Analysis
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max time kernel
34s -
max time network
93s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
03-03-2021 19:05
Static task
static1
Behavioral task
behavioral1
Sample
b78d57b9cf77f9b074ed8899e0091d521d3a22908a759a9d742bba3cfa1fcd7a.dll
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
General
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Target
b78d57b9cf77f9b074ed8899e0091d521d3a22908a759a9d742bba3cfa1fcd7a.dll
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Size
188KB
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MD5
b9b9bd31e348b153eb5d524a2d6630b3
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SHA1
a9a3d5041699ab1f944edeeacd136440aa1406f9
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SHA256
b78d57b9cf77f9b074ed8899e0091d521d3a22908a759a9d742bba3cfa1fcd7a
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SHA512
0a15df83599ad3099d95b8eccf518db54114a479c92d5916da8de50010f9a6afff00a9167787818f21c074b7963df50c0b4fa504a78170d09a50eb11dc8b5fc9
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/2008-4-0x0000000075250000-0x0000000075281000-memory.dmp dridex_ldr behavioral1/memory/2008-6-0x0000000075250000-0x000000007526F000-memory.dmp dridex_ldr -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 5 2008 rundll32.exe 7 2008 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 1852 wrote to memory of 2008 1852 rundll32.exe rundll32.exe PID 1852 wrote to memory of 2008 1852 rundll32.exe rundll32.exe PID 1852 wrote to memory of 2008 1852 rundll32.exe rundll32.exe PID 1852 wrote to memory of 2008 1852 rundll32.exe rundll32.exe PID 1852 wrote to memory of 2008 1852 rundll32.exe rundll32.exe PID 1852 wrote to memory of 2008 1852 rundll32.exe rundll32.exe PID 1852 wrote to memory of 2008 1852 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\b78d57b9cf77f9b074ed8899e0091d521d3a22908a759a9d742bba3cfa1fcd7a.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\b78d57b9cf77f9b074ed8899e0091d521d3a22908a759a9d742bba3cfa1fcd7a.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/828-7-0x000007FEF7FE0000-0x000007FEF825A000-memory.dmpFilesize
2.5MB
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memory/2008-2-0x0000000000000000-mapping.dmp
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memory/2008-3-0x00000000760F1000-0x00000000760F3000-memory.dmpFilesize
8KB
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memory/2008-4-0x0000000075250000-0x0000000075281000-memory.dmpFilesize
196KB
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memory/2008-5-0x0000000000140000-0x0000000000146000-memory.dmpFilesize
24KB
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memory/2008-6-0x0000000075250000-0x000000007526F000-memory.dmpFilesize
124KB