Analysis
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max time kernel
31s -
max time network
88s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
03-04-2021 19:32
Static task
static1
Behavioral task
behavioral1
Sample
8e2ecfdf6802a22ef4a346a78ece663397753b31c600db7e0555802421b38067.dll
Resource
win7v20201028
Behavioral task
behavioral2
Sample
8e2ecfdf6802a22ef4a346a78ece663397753b31c600db7e0555802421b38067.dll
Resource
win10v20201028
General
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Target
8e2ecfdf6802a22ef4a346a78ece663397753b31c600db7e0555802421b38067.dll
-
Size
196KB
-
MD5
62ef67a989a2fcd3a44a03a56f247d7c
-
SHA1
24cf41ef8b71f9cd8d9f2367b997ac2322a4e544
-
SHA256
8e2ecfdf6802a22ef4a346a78ece663397753b31c600db7e0555802421b38067
-
SHA512
5e84f91c9118c3236256b6171280afa335f38722b7b4736befc755351bc594af630de9a2a1496b30e35ef9f78e4a66b52100ecaf1c199d2a8d1d3a67447c4a76
Malware Config
Extracted
dridex
111
37.247.35.132:443
50.243.30.51:6601
162.241.204.234:6516
Signatures
-
Processes:
resource yara_rule behavioral1/memory/1504-4-0x00000000748E0000-0x0000000074913000-memory.dmp dridex_ldr behavioral1/memory/1504-6-0x00000000748E0000-0x00000000748FF000-memory.dmp dridex_ldr -
Blocklisted process makes network request 2 IoCs
Processes:
rundll32.exeflow pid process 4 1504 rundll32.exe 6 1504 rundll32.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
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 1888 wrote to memory of 1504 1888 rundll32.exe rundll32.exe PID 1888 wrote to memory of 1504 1888 rundll32.exe rundll32.exe PID 1888 wrote to memory of 1504 1888 rundll32.exe rundll32.exe PID 1888 wrote to memory of 1504 1888 rundll32.exe rundll32.exe PID 1888 wrote to memory of 1504 1888 rundll32.exe rundll32.exe PID 1888 wrote to memory of 1504 1888 rundll32.exe rundll32.exe PID 1888 wrote to memory of 1504 1888 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\8e2ecfdf6802a22ef4a346a78ece663397753b31c600db7e0555802421b38067.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\8e2ecfdf6802a22ef4a346a78ece663397753b31c600db7e0555802421b38067.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/1504-2-0x0000000000000000-mapping.dmp
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memory/1504-3-0x0000000075781000-0x0000000075783000-memory.dmpFilesize
8KB
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memory/1504-4-0x00000000748E0000-0x0000000074913000-memory.dmpFilesize
204KB
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memory/1504-5-0x0000000000180000-0x0000000000186000-memory.dmpFilesize
24KB
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memory/1504-6-0x00000000748E0000-0x00000000748FF000-memory.dmpFilesize
124KB
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memory/1724-7-0x000007FEF7430000-0x000007FEF76AA000-memory.dmpFilesize
2.5MB