Analysis
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max time kernel
37s -
max time network
93s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
03-04-2021 11:19
Static task
static1
Behavioral task
behavioral1
Sample
495295cd360148f2bd3d0606ce57c9774cf68062a1e32a6afaff4c61fed0022b.dll
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
General
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Target
495295cd360148f2bd3d0606ce57c9774cf68062a1e32a6afaff4c61fed0022b.dll
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Size
196KB
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MD5
75781964ef3bf602e6ce0981a932436c
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SHA1
b96733ee54997843a50fb72815af7bf7a45839b5
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SHA256
495295cd360148f2bd3d0606ce57c9774cf68062a1e32a6afaff4c61fed0022b
-
SHA512
58a2f0ead0f2d88ed9e805bb0f653aaf82e891f7559075291c2daa6c55ceb52fc4fba34a275ca4c104b33a1c4eed4f5d1fd2eb4d75fb3b0141e0eb5d493570a0
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/1888-4-0x0000000075380000-0x00000000753B3000-memory.dmp dridex_ldr behavioral1/memory/1888-6-0x0000000075380000-0x000000007539F000-memory.dmp dridex_ldr -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 6 1888 rundll32.exe 8 1888 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 528 wrote to memory of 1888 528 rundll32.exe rundll32.exe PID 528 wrote to memory of 1888 528 rundll32.exe rundll32.exe PID 528 wrote to memory of 1888 528 rundll32.exe rundll32.exe PID 528 wrote to memory of 1888 528 rundll32.exe rundll32.exe PID 528 wrote to memory of 1888 528 rundll32.exe rundll32.exe PID 528 wrote to memory of 1888 528 rundll32.exe rundll32.exe PID 528 wrote to memory of 1888 528 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\495295cd360148f2bd3d0606ce57c9774cf68062a1e32a6afaff4c61fed0022b.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\495295cd360148f2bd3d0606ce57c9774cf68062a1e32a6afaff4c61fed0022b.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/1072-7-0x000007FEF7D40000-0x000007FEF7FBA000-memory.dmpFilesize
2.5MB
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memory/1888-2-0x0000000000000000-mapping.dmp
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memory/1888-3-0x0000000075D01000-0x0000000075D03000-memory.dmpFilesize
8KB
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memory/1888-4-0x0000000075380000-0x00000000753B3000-memory.dmpFilesize
204KB
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memory/1888-5-0x00000000001C0000-0x00000000001C6000-memory.dmpFilesize
24KB
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memory/1888-6-0x0000000075380000-0x000000007539F000-memory.dmpFilesize
124KB